preparation

Substituted phenoxyethyl (isopropyl) acyloxyalkyl phosphonate comprising phosphorusheterocyclic ring and having herbicidal activity, and preparation therefor

A substituted phenoxyethyl(isopropyl)acyloxyalkyl phosphonate having phosphorusheterocyclic ring and having herbicidal activity, with a general formula of I, wherein R represents 5,5-dimethyl-1,3,2-dioxaphosphorinan-2-one-2-yl, or 1-oxo-1-phospha-2,6,7-trioxabicyclo[2,2,2]octan-4-yl, or 1-sulfo-1-phospha-2,6,7-trioxabicyclo 2,6,7-trioxabicyclo[2,2,2]octan-4-yl; R1 represents H, C1-C4 alkyl, phenyl, furyl, pyridyl, or phenyl substituted with methyl, methoxyl, nitro or chloro; R2 represents H, methyl, and methyl only if R in the general formula I is 1-sulfo-1-phospha-2,6,7-trioxabicyclo[2,2,2]octan-4-yl as phosphorusheterocyclic ring; X and Y represent H, halogen, C1-C4 alkyl or trifluoromethyl, and X and Y are the same or different. The compounds according to the present invention may be used as active component of dicotyledonous broadleaf weed herbicides.




preparation

Process for preparation of acetals

A process for the preparation of 1,3:2,4-bis(4-methylbenzylidene)sorbitol (MDBS) and 1,3:2,4-bis(3,4-dimethylbenzylidene)sorbitol (DMDBS) via a dehydrocondensation reaction is disclosed. The reaction is carried out between an aldehyde and an alditol in a mole ratio of 2:1 wherein ionic fluid is used as the acidic catalyst and/or reaction medium. The ionic fluid used in accordance with the present invention is quaternary ammonium salt based ionic liquid.




preparation

Method for preparation of anhydrosugar alcohols

A method is provided for the preparation of anhydrosugar alcohols. The method involves dehydration of a hexitol with a mixed acid of a first acid and second acid, in which the first acid is sulfuric acid and the second acid is at least one sulfur-containing acid or sulfur-containing acid salt selected from the group consisting of p-toluenesulfonic acid, methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, naphthalenesulfonic acid and aluminum sulfate. Also provided are methods for purification of the resulting product.




preparation

Process for the preparation of 1-aryl-pyrazol-3-one intermediates useful in the synthesis of sigma receptors inhibitors

The invention relates to a process for preparing 1-aryl-pyrazol-3-one intermediates, tautomers, and salts thereof, to novel intermediates, and to the use of the intermediates in the preparation of sigma receptor inhibitors.




preparation

Preparation of nitrile compounds

The invention relates to novel nitrile compounds according to formula I and II: (I) Formula I wherein: X=—CH3 or —C≡N, (II) Formula II wherein: X=—CH3 or —C≡N, each Y is independently chosen from —OH or RC(0)0-, each R is independently chosen from a C1-21 alkyl group. The invention also relates to processes for the preparation of nitrile compounds according to formula I and II and to uses of the nitrile compounds.




preparation

Process for the preparation of quaternary N-alkyl morphinan alkaloid salts

An improved process for the N-alkylation of tertiary morphinan alkaloid bases to form the corresponding quaternary morphinan alkaloid derivatives.




preparation

Process for the preparation of compounds useful as inhibitors of SGLT

The present invention is directed to a novel process for the preparation of compounds having inhibitory activity against sodium-dependent glucose transporter (SGLT) being present in the intestine or kidney.




preparation

Process for the preparation of 17-(3-hydroxypropyl)-17-hydroxysteroids

The present invention relates to a process for the preparation of 17α-(3-hydroxypropyl)-17β-hydroxysteroids of the formula I starting from 17-ketosteroids of the formula III via the intermediates of the formula V wherein the radicals R3, R5, R6, R7, R10, R13, R15, R16, R40, R41 and R42 have the meaning indicated in the description.




preparation

Preparation of a crystalline antibiotic substance

The present invention relates to processes for the crystallisation and for the preparation and isolation of a novel crystalline form of fusidic acid, to the use of said processes in the manufacture of pharmaceutical formulation or medicament, and to the use of said crystalline fusidic acid form for the treatment of bacterial infections.




preparation

Process for preparation of lacosamide and some N-benzyl-propanamide intermediate derivatives

The present invention discloses novel process for the preparation of (2R)-2-acetamido-N- benzyl-3-methoxypropanamide of Formula I involving novel intermediates of Formula-XIX and Formula-XX.




preparation

Plant growth regulator compositions, methods of preparation and use thereof

Suspension concentrate compositions are disclosed for delivering S-(+)-Abscisic acid either alone or in combination with a second plant growth regulator to crop seed prior to planting as well as for foliar, soil drench, in-furrow and sprench (foliar spray and soil drench) applications are disclosed. The compositions, when properly combined in an aqueous carrier and processed through wet milling to achieve the desired particle size, will result in stable compositions that are desirable for treating crop seeds.




preparation

Mixed oxide based catalyst for the conversion of carbon dioxide to syngas and method of preparation and use

The invention relates to a catalyst and process for making syngas mixtures including hydrogen, carbon monoxide and carbon dioxide. The process comprises contacting a gaseous feed mixture containing carbon dioxide and hydrogen with the catalyst, where the catalyst comprises Mn oxide and an auxiliary metal oxide selected from the group consisting of La, Ca, K, W, Cu, Al and mixtures or combinations thereof. The process enables hydrogenation of carbon dioxide into carbon monoxide with high selectivity, and good catalyst stability over time and under variations in processing conditions. The process can be applied separately, but can also be integrated with other processes, both up-stream and/or down-stream including methane reforming or other synthesis processes for making products like alkanes, aldehydes, or alcohols.




preparation

Preparation of iron/carbon nanocomposite catalysts for Fischer-Tropsch synthesis reaction and related production of liquid hydrocarbons

Iron/carbon (Fe/C) nanocomposite catalysts are prepared for Fischer-Tropsch synthesis reaction. A preparation method includes steps of mixing iron hydrate salts and a mesoporous carbon support to form a mixture, infiltrating the iron hydrate salts into the carbon support through melt infiltration of the mixture near a melting point of the iron hydrate salts, forming iron-carbide particles infiltrated into the carbon support through calcination of the iron hydrate salts infiltrated into the carbon support under a first atmosphere, and vacuum-drying the iron-carbide particles after passivation using ethanol. Using such catalysts, liquid hydrocarbons are produced.




preparation

Preparation of saturated ketone morphinan compounds

The present invention provides processes for the preparation of saturated ketone morphinan compounds. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an inorganic salt of a late transition metal.




preparation

Patch and patch preparation

The present invention provides to a patch and a patch preparation having low stretchability, which can be continuously adhered to the skin for a long time without undesirable detachment and marked falling off from the skin due to various factors during adhesion, and specifically provides a low stretchable patch and a patch preparation containing a support and an adhesive layer formed on one surface of the support, wherein a ratio P of the total length W (mm) of curved sections of a planar outer shape of the patch to the total length S (mm) of straight-line sections of the planar outer shape of the patch (W/S) is not more than 1.22, and, when the curved sections are approximated by a circular arc, the radius R (mm) of the circular arc is not less than 0.5 mm.




preparation

Catalyst composition, its preparation and use

A catalyst composition which comprises: a) a carrier which comprises at least 30 wt % of a binder selected from silica, zirconia and titania; at least 20 wt % of a pentasil zeolite, having a bulk silica to alumina ratio in the range of from 20 to 150 and being in its H+ form; and less than 10 wt % of other components, all percentages being on the basis of total carrier; b) platinum in an amount in the range of from 0.001 to 0.1 wt %, on the basis of total catalyst; and c) tin in an amount in the range of from 0.01 to 0.5 wt %, on the basis of total catalyst; its preparation and use; are provided.




preparation

Catalyst compositions for conversion of vegetable oils to hydrocarbon products in the diesel boiling range and process of preparation thereof

The present invention relates to a catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range, comprising a porous support; Group III A or VA element in the range of 1-10 wt %; Group VI B elements in the range of 1 to 20 wt %; Group VIII B elements in range of 0.01 to 10 wt %. The present invention further provides the process for preparing the catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range. The present invention also provides the process for conversion of vegetable oils to hydrocarbon products in the diesel boiling range using the catalyst composition or discarded refinery spent hydro-treating catalyst.




preparation

Lignin-derived thermoplastic co-polymers and methods of preparation

The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100° C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.




preparation

Two-component lignosulfonate adhesives and methods for their preparation

Disclosed are two-component lignosulfonate adhesives, methods of synthesizing two-component lignosulfonate adhesives, kits comprising two-component lignosulfonate adhesives and methods of using two-component lignosulfonate adhesives.




preparation

Photo-crosslinked gellan gum-based hydrogels: preparation methods and uses thereof

This invention refers to photo-crosslinked hydrogel materials based in gellan gum suitable for tissue engineering and regenerative medicine applications or as drug delivery systems. Formulations of gellan gum with different degrees of acylation serve as precursor material for insertion of a polymerizable moiety. The materials are capable of free radical polymerization with a photo-initiator at mild temperatures and exposure to ultraviolet light, enabling control of reticulation and withstanding the encapsulation of human and animal cells and/or drugs, and any combination thereof. The physicochemical and biological properties can be adjusted by combining different formulations of gellan gum and reaction conditions. The matrix can be used either as an acellular or cellular system, dispensed manually or automatically by injection and crosslinked directly at the site of application, and can be processed using manual or automated systems in different types of scaffolds, such as hydrogels, fibers, 3D structures and micro- or nanoparticles.




preparation

Esters of 4,5-disubstituted-oxy-2-methyl-3,6-dioxo-cyclohexa-1,4-dienyl alkyl acids and preparation thereof

Esters of 4,5-disubstituted-oxy-2-methyl-3,6-dioxo-cyclohexa-1,4-dienyl alkyl acids were prepared chemically and/or enzymatically. Depending upon the ester, improved melanocyte cytotoxicity was achieved. Improved cytotoxicity characteristics are consistent with ester analogs being more physiologically compatible and less irritating to skin than their corresponding acids.




preparation

Black disazo dyes, their preparation and use

Black disazo dyes of general formula (V) wherein A is a moiety of formula (VI) or of formula (VII) and B is a moiety of formula (VII) or of formula (IX) and wherein M, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, and R24, are as defined in the specification, are excellent black dyes for dying and printing cellulose containing materials and textile materials and, in particular, for preparation of recording liquids for ink jet printing and for writing utensils.




preparation

Manufacture and use of modified polysaccharide chitosan bonds and a process to improve the preparation of HES-medicinal substance compounds

The invention relates to a bonding product suitable as a carrier for medicinal substances and to the compound derived therefrom that carries medicinal substances. The invention further relates to a process and device for preparing such bonding products and compounds. Further, the invention relates to a pharmaceutical composition containing such bonding products and compounds, and to the use thereof for preparing an infusible medicament for treating a disease.




preparation

Metal azo pigments and pigment preparations produced therefrom

The new metal azo pigments comprising the adduct of a) at least two metal azo compounds of the formula (I) or their tautomeric forms in which the substituents have the definition indicated in the description,and b) at least one compound of the formula (II) in whichR6 has the definition indicated in the description, are characterized in that in the X-ray diffractogram with a lattice constant of d=10.3 (±0.2) Å the metal azo pigment has a signal S1 with an intensity I1 and in the lattice constant range from d=16.05 Å to d=11.78 Å has no signal S2 whose intensity I2 in relation to the intensity I1 of signal S1, expressed as ratio I2/I1 of the background-corrected intensities, exceeds a value of 0.02,and are outstandingly suitable for producing pigment preparations and especially for producing color filters.




preparation

GO-Gd-DTPA complex, preparation method thereof, and MRI contrast agent comprising the same

Disclosed herein is a GO-Gd-DTPA (gadolinium-diethylenetriamine pentaacetic-graphene oxide) complex, which is formed by an ester bond of graphene oxide (GO) and gadopentetic acid (Gd-DTPA). Since the GO-Gd-DTPA can stably exist in the body because it has high stability in water, it is expected that it can be effectively used as an MRI contrast agent.




preparation

Quaternary data-storage materials and the preparation method thereof

An organic compound has the following chemical structure: wherein R is different from R*; R and R* are independently hydrogen, halogen, nitro or methoxyl; and R1 is a C1-C6 alkyl or a phenyl group. A quaternary data storage device includes a bottom electrode, a top electrode, and the organic film layer sandwiched between the bottom electrode and the top electrode.




preparation

Nitroimidazole-amino acid hypoxia contrast medium, preparation method and use thereof

A hypoxia contrast medium including nitroimidazole-amino acid chelate with a positively charged radioactive nuclide, a preparation method and use thereof. The contrast medium can be used in imaging cerebral thrombosis, tumors or other diseases such as ulceration, thrombosis, and so on.




preparation

Derivatives of the NF-κB inducing enzyme, their preparation and use

The invention relates to the use of NF-κB inducing kinase (NIK) and related molecules for the modulation of signal activities controlled by cytokines, and some new such molecules.




preparation

Antineoplastic hydrogels, and enzyme-instructed preparations thereof

Disclosed is a general methodology to create nano fibers of therapeutic molecules that have a dual role, as both the delivery vehicle and the drug itself. It is shown that with proper molecular design, the integration of enzymatic reaction and self-assembly provides a powerful method to create molecular hydrogels of clinically-used therapeutics without compromising their bioactivities. In addition, the results disclosed herein demonstrate enzyme-instructed self-assembly as a facile strategy for generating the supramolecular hydrogels of molecules that inherently have poor solubility in water. For example, by covalently connecting paclitaxel with a motif that is prone to self-assemble, a hydrogel of paclitaxel can be formed without compromising the activity of the paclitaxel.




preparation

Cable-type secondary battery and preparation thereof

The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; and a sheet-form laminate of separation layer-outer electrode, spirally wound to surround the outer surface of the inner electrode, the laminate being formed by carrying out compression for the integration of a separation layer for preventing a short circuit, and an outer electrode. According to the present disclosure, the electrodes and the separation layer are compressed and integrated to minimize ununiform spaces between the separation layer and the outer electrode and reduce the thickness of a battery to be prepared, thereby decreasing resistance and improving ionic conductivity within the battery. Also, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery.




preparation

Process for the synthesis of functionalized poly (1,3-alkadienes) and use thereof in the preparation of high impact vinyl aromatic polymers

Process for the preparation of vinyl aromatic (co) polymers grafted on an elastomer in a controlled manner, comprising: dissolving an elastomer functionalized with bromoalkanes and nitroxy radicals, soluble in non-polar solvents, in a liquid phase consisting of a mixture of vinyl aromatic monomer(s)/polymerization solvent; feeding at least one radical initiator to the mixture, containing the functionalized elastomer in solution, and polymerizing the mixture thus obtained at a temperature higher than or equal to 1200 C; recovering the vinyl aromatic (co) polymer obtained after devolatization; and recycling the solvent/monomer(s) mixture, coming from the devolatization, to step (a).




preparation

Preparation method of superabsorbent polymer

The present invention relates to a preparation method of a superabsorbent polymer, and specifically to a method of preparing a superabsorbent polymer including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; classifying the milled hydrous gel phase polymer into two or more grades by particle size; adding a surface cross-linking agent to each hydrous gel phase polymer classified into two or more grades; and carrying out a surface cross-linking reaction of the hydrous gel phase polymer to which the surface cross-linking agent is added.




preparation

Method for preparation of platinum-carbonyl-siloxane compounds

The invention relates to a method for preparation of platinum siloxane compounds containing at least one CO ligand molecule (Pt carbonyl siloxanes). The method comprises reacting gaseous carbon monoxide (CO) with a platinum siloxane compound, preferably a platinum vinyl-cyclosiloxane compound, in solution with an organic solvent. The method is straightforward and applicable to industrial scale. With this method, specific isomers of platinum carbonyl vinylcyclosiloxanes are prepared, in which the two η-2-ethenyl groups coordinated to the Pt atom are bonded in trans-configuration relative to the cyclosiloxane backbone. The Pt compounds obtained by the method are used as catalysts for hydrosilylation and for crosslinking and curing of siloxanes and silanes.




preparation

Surface preparation for a microfluidic channel

A microfluidic cartridge having a microfluidic channel may have at least one surface that has been roughened, etched or otherwise treated to alter its surface characteristics. In some instances, a microfluidic cartridge may have a microfluidic channel that is configured to provide even distribution of a lysing reagent across the channel. The surface may be roughened or etched using a laser, an abrasive, application of a solvent or in any other suitable manner.




preparation

Preparation of an optical PH sensor based on fluorescein and 1-heptanesulfonic acid sodium Co-intercalated layered double hydroxide

This invention relates to the field of preparation technology of optical pH sensor by co-intercalated fluorescein and 1-heptanesulfonic acid sodium into layered double hydroxide. The sensor is composed by conductive materials and the surface LDH films by co-interacted FLU and HES. The synthesis method is: first: synthesis of LDH colloid suspension, subsequently, the FLU and HES co-intercalated LDH colloid solution was prepared following the ion-exchange method, then the thin film of FLU-HES/LDH was spreaded on the surface of the conductive material by electrophoretic deposition, and the oriental pH sensor was synthesized. The advantages of the present invention is: first, the LDH matrix provides chromophore molecules with a confined and stable environment; the novel electrophoretic deposition strategy in this work provides a method for precise control of thickness (ranging from nanometers to micrometers), and the oriental pH sensor show good pH responsive.




preparation

Sample preparation for spectroscopy analysis

A sample is cleaned up for spectroscopic analysis by receiving a slide substrate having the sample thereon, fixing the sample to a substrate surface of the slide substrate by applying heat to the slide substrate for a predetermined heating time and incubating the sample on the slide substrate for a predetermined incubation time after fixing the sample to the slide substrate. The sample is further cleaned by washing the sample on the slide substrate after the sample has been incubated and drying the sample by applying heat to the slide substrate for a predetermined drying time, wherein the sample on the slide substrate after drying has retained particles of interest and interferant particles are removed from the substrate. A substrate is also provided for sample collection, which is culturable and Raman silent.




preparation

Binding layer and method for its preparation and uses thereof

The invention provides a binding layer comprising a polysaccharide substituted by carboxylic groups or derivatives thereof exhibiting high performance in the binding of ligand molecules and in the interaction thereof with analyte molecules. A method for the preparation of the binding layer and for the assaying of various analyte molecules is also provided.




preparation

Tin-containing organolithium compounds and preparation thereof

The present invention relates to a tin-containing organolithium compound which can be used as anionic polymerization initiators, represented by the following formula (1): R4−xSn(Ya—Zm—Yb—Li)x (1)Wherein R, Z and Y are defined as in the specification; x represents a value of 1 or 2; m represents a value of 0 or 1; a represents a value of 0 to 6, b represents a value of 0 to 6, a+b is from 0 to 6, provided that m=1 when x=1. The tin-containing organolithium compounds according to the present invention can be used as initiators to initiate the polymerization of conjugated dienes and/or monovinyl aromatic hydrocarbons, thereby synthesizing various linear, star or telechelic polymers. The present invention also relates to a method for preparing the tin-containing organolithium compounds according to the present invention.




preparation

Process for the preparation of alkyllithium compounds

A process for preparing alkyllithium compounds by reacting a sodium-lithium alloy with alkyl halides at temperatures of about 50 to 125° C.




preparation

Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts

The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, m+n is zero or 1, and R10 is hydrogen, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins of high stereospecificity and high melting point.




preparation

Preparation of functionalized anionic polymerization initiators

A process for preparing a functionalized polymerization initiator, the process comprising combining a functionalized styryl compound and an organolithium compound.




preparation

Supported metal alkyl compound and its preparation

Pulverulent solid which consists essentially of at least one metal alkyl compound bound chemically and/or physically to a finely divided, porous, mechanically stable and chemically inert support, has a proportion by weight of metal alkyl compound of at least 5% by weight, based on the support, and has an angle of repose, determined in accordance with ISO 4324, of up to 48°. The solid allows trouble-free metering as active component into a reactor.




preparation

Dicarbanionic initiator, a process for the preparation and use thereof

The present invention provides a novel dicarbanionic initiator of formula (I). The present process further provides a process for the preparation of dicarbanionic initiator of formula (I) comprising reacting 1-bromo-4-(4'-bromophenoxy)-2-pentadecyl benzene of formula (II) with alkyllithium compound for an effecting halogen-lithium exchange reaction of 1-bromo-4-(4'-bromophenoxy)-2-pentadecyl benzene with sec-butyllithium in the presence of a non polar solvent, at a temperature in the range of 0 to 25° C. and its use as an initiator for the synthesis of telechelic polydienes and polystyrenes and SBS or SIS triblock copolymers.




preparation

Process for the preparation of pure aryllithium compounds and their use

A process is described for preparing aryllithium compounds by reaction of metallic lithium in an ether-containing solvent with an aryl halide, wherein prior to or at the beginning of the reaction a catalyst is added, the catalyst containing a halogen-free, polynuclear aromatic (aryl catalyst) or consisting of such a compound.




preparation

Puffed oat based breakfast cereal of enhanced salty flavor perception and method of preparation

Methods of preparation and improved oat based puffed R-T-E or breakfast cereal products resulting there from with reduced sodium levels that provide good cooked grain flavor relative to other low or no sodium cooked cereal products and that approach the quality of higher sodium level products are provided. The methods include formulating cooked cereal doughs with minimal levels of sodium chloride and including a blend of potassium chloride and choline chloride. The cooked cereal dough is formed into pellets and gun puffed to form puff products having a total pyrazine content of at least 200 ppm. The puffed products are topically coated with saline solution and dried to provide the present improved low sodium high flavor finished breakfast cereal products.




preparation

Bake hardening steel with excellent surface properties and resistance to secondary work embrittlement, and preparation method thereof

Provided are a bake hardening steel having a crystalline grain size of ASTM No. 9 or more and a method for preparing the bake hardening steel by controlling the winding, rolling and cooling conditions. The bake hardening steel includes: C:0.0016˜0.0025%, Si:0.02% or less, P:0.01˜0.05%, S:0.01% or less, sol.Al:0.08˜0.12%, N:0.0025% or less, Ti:0.003% or less, Nb:0.003˜0.011%, Mo:0.01˜0.1%, B:0.0005˜0.0015% or less, balance Fe and other inevitable impurities, wherein % is weight %, and Mn and P satisfy the relation of −30(° C.)≧803P−24.4Mn−58.




preparation

Preparation of lithium carbonate from lithium chloride containing brines

This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.




preparation

Preparation of lithium carbonate from lithium chloride containing brines

This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.




preparation

Polyester fabrics for airbag and preparation method thereof

Disclosed is a fabric for an airbag including a polyester fiber, and particularly to a polyester fabric for an airbag of which toughness is 3.5 to 6.0 kJ/m3 and tearing strength measured according to the ASTM D 2261 TONGUE method is 18 to 30 kgf, wherein the fabric includes polyester fiber of which toughness is 70 to 95 J/m3, a method of preparing the same, and an airbag for a car including the same.




preparation

Low-temperature heat-generating solid wood laminate floor and preparation method thereof

Disclosed is a low-temperature heat-generating solid wood laminate floor, which comprises: an exterior finished layer, an upper base material layer, a heat-generating layer, and a lower base material layer, which are stacked in sequence and hot-pressed. The upper base material layer, heat-generating layer and lower base material layer comprise 9 layers in total after hot-pressing, the heat-generating layer being positioned at the 5th to the 7th layer, the upper base material layer being above the heat-generating layer, the lower base material layer being below the heat-generating layer, the upper base material layer consisting of 3 to 5 layers, the lower base material layer consisting of 4 to 6 layers, and the exterior finished layer being provided on the upper base material layer by hot-pressing.