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Matches 1 - 50 out of 33,894

Document Document Title
WO/2021/027807A1
Disclosed is a method for preparing an azelaic acid. In particular, the preparation method does not use ozone. The above method for preparing an azelaic acid includes carrying out a decarboxylation reaction of tetracarboxylic acid in org...  
WO/2021/030349A1
Reactor liquids, compositions, and methods of forming acetic acid, which may reduce catalyst loss. The reactor liquids and compositions may include, and the methods may use, a tri- aliphatic hydrocarbyl phosphine oxide. The carbonylation...  
WO/2020/201968A3
The present disclosure describes that high purity cholesterol is obtained by the processes of the invention without any further purification step, such as a crystallizing step from a solvent, but rather by distilling steps alone. The dis...  
WO/2021/022938A1
A method for preparing a metal-organic framework (MOF) using solid waste from a metallurgical mine, relating to the field of comprehensive utilization of resources. The method dissolves solid waste from a metallurgical mine using a conce...  
WO/2021/023803A1
The presently claimed invention relates to a continuous process for the preparation of dicarboxylic acids, especially a continuous process for the preparation of sebacic acid.  
WO/2021/019224A1
The invention discloses a catalyst comprising a silica support, a modifier metal and a catalytic alkali metal. The silica support has a multimodal pore size distribution comprising a mesoporous pore size distribution having an average po...  
WO/2021/018717A1
The present invention relates to a method of extracting at least one selected from carbonic acid, aliphatic acid, aliphatic acid ester and aliphatic alcohol from an aqueous medium, the method comprising the steps: (a) contacting the carb...  
WO/2021/021849A1
A process for preparing a recycle content (C4)alkanoic acid (i.e., butyric acid and/or isobutyric acid) derived from a recycle propylene composition, a recycle (C4)alkanal are provided.  
WO/2021/012722A1
The present invention belongs to the technical field of chemical pharmaceutical engineering. Provided are a sodium 3-hydroxybutyrate product and a preparation method therefor. The sodium 3-hydroxybutyrate product has a degree of crystall...  
WO/2021/013640A1
A process for the continuous production of either acrolein or acrylic acid as the target product from propene comprising a catalyzed gas phase partial oxidation of propene to yield a product gas containing the target product, transferrin...  
WO/2021/011810A1
A process for a reactive extraction and subsequent purification of organic molecules from biomass comprises extracting one or more products from the biomass using an extraction solvent to solvate the products, contacting the biomass with...  
WO/2020/006446A8
Solid/liquid separation processes using a large pore filter. One aspect of the disclosure is a process comprising filtering a solid/liquid mixture of a collection of solid aromatic carboxylic acid particles in a solvent in a first zone o...  
WO/2021/004719A1
The present invention relates to a novel process for producing methacrylates, such as methacrylic acid and/or alkyl methacrylates, in particular MMA. The present invention relates, in particular, to an increase in yield and efficiency of...  
WO/2021/004209A1
The present invention relates to a eutectic of calcium dihydropyridine antagonist and a preparation method therefor and an application thereof. The eutectic molecular formula is (C20H25ClN2O5)·(C6H5COOH)·(Y)n, wherein: Y is any one amo...  
WO/2021/001756A1
Present disclosure relates to a two-step fermentation process for obtaining cellulose and gluconic acid. The present two-step fermentation yields bacterial cellulose in first stage of fermentation and gluconic acid in second stage of fer...  
WO/2020/258442A1
Disclosed is a preparation method for an organic metal carboxylate. The present invention effectively solves the problem of a conventional metal organic carboxylate production process having a complicated rinsing process and a cumbersome...  
WO/2020/260371A1
The invention relates to a process for distillative removal of a unsaturated carboxylic anhydride of the general formula (I) R-C(O)-O-C-(O)-R in which R is an unsaturated organic radical having 2 to 12 carbon atoms, wherein said unsatura...  
WO/2020/258131A1
Provided is a method for preparing glycolic acid which comprises oxidizing glycolaldehyde with molecular oxygen in the presence of a solvent and a supported catalyst. Said supported catalyst comprises (i) a noble metal selected from the ...  
WO/2020/258441A1
Disclosed in the present invention is a preparation method for a nano organometallic carboxylate. The present invention effectively solves the problems of a complex washing process, and cumbersome, dangerous and uneconomical preparation ...  
WO/2020/256556A1
The present invention pertains to a method for the preparation of maleic acid from 5-hydroxy-2(5H)-furanone or a tautomer thereof, said method comprising the step of subjecting 5-hydroxy-2(5H)-furanone or a tautomer thereof to an oxidati...  
WO/2020/257571A1
The invention provides methods of preparing 8-hy droxy-2,2, 14,14- tetramethylpentadecanedioic acid and methods of making a pharmaceutical material comprising a purified amount of 8-hy droxy-2,2, 14, 14-tetramethylpentadecanedioic acid. ...  
WO/2020/252536A1
A method for producing a crystalline hydrogen-bonded organic framework (HOF) that encapsulates a bio-molecule, the method comprising combining in a solution the bio-molecule and a HOF precursor, wherein the HOF precursor self-assembles t...  
WO/2020/248076A1
Disclosed are methods for separating, recovering, and purifying cannabidiolic acid (CBDA) salts from an organic solvent solution comprising a mixture of cannabinoids. The methods comprise solubilizing the mixture of cannabinoids in C5-C7...  
WO/2020/249688A1
Process for the production of a diacyl peroxide involving the reaction of an anhydride with hydrogen peroxide, removal of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydride wi...  
WO/2020/249692A1
Method for isolating carboxylic acid from an aqueous metal carboxylate-containing side stream of an organic peroxide production process, involving the protonation of the carboxylate, separation of liquid and organic phases, and the remov...  
WO/2020/249690A1
Process for the production of a diacyl peroxide involving the reaction of an anhydride with a peroxyacid, removal of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydride within ...  
WO/2020/248279A1
The present invention provides a continuous synthesis method for a substituted benzoate organic matter. The continuous synthesis method comprises: in the presence of a catalyst and an organic solvent, continuously feeding an organic matt...  
WO/2020/248278A1
The present invention provides a method for the continuous synthesis of a substituted benzoic-acid organic substance. The continuous synthesis method comprises: in the presence of catalyst and organic solvent, the organic matter represen...  
WO/2020/249689A1
Process for the production of a peroxyester involving the reaction of an anhydride with an organic hydroperoxide, separation of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydr...  
WO/2020/251613A1
There is disclosed a process for the production of dodecanedioic acid and 11- aminoundecanoic acid, comprising: (1) reacting castor oil with a primary or secondary amine to form a amide; (2) isomerizing the amide in the presence of a cat...  
WO/2020/248483A1
Disclosed is a preparation process of stearate, which is a method for preparing stearate by directly reacting a metal oxide or hydroxide with stearic acid. The process not only has simple steps, uses a small number of devices, requires a...  
WO/2020/249691A1
Process for the production of a diacyl peroxide involving the reaction of an anhydride with an aldehyde and oxygen, removal of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydri...  
WO/2020/244280A1
Disclosed are a nano-copper catalyst, a preparation method therefor and an application in the synthesis of acetic acid or ammonia, the catalyst comprising a substrate and an active agent supported on the substrate, wherein the active age...  
WO/2020/246476A1
A production method for a catalyst for producing acrylic acid from acrolein, said production method having a hydrothermal synthesis step in which a raw material mixture including a molybdenum oxide, a vanadium oxide, a copper oxide, a po...  
WO/2020/243907A1
The present invention relates to a method of synthesizing at least one organic acid comprising oxidizing glycolaldehyde with nitric acid in the presence of a solvent. Advantageously, it is an industrially applicable process, which prepar...  
WO/2020/238753A1
A preparation method for salicylamine acetate, comprising preparing an amino-protected intermediate from salicylaldehyde, and reacting the intermediate with acetic acid to prepare an acetate.  
WO/2020/241720A1
The present invention provides: a method which is capable of suppressing polymerization of methacrylic acid even if the methacrylic acid is in the coexistence of an extraction solvent such as xylene; and a method for producing a methacry...  
WO/2020/243754A1
Provided herein is a method of forming a beta-lactone from a carboxylic acid having a beta-carbon with a hydrogen atom disposed thereon. The method comprises contacting a carboxylic acid of formula (1) as described herein with an effecti...  
WO/2020/233778A1
The invention relates to fragrance or flavouring agent mixtures containing (i) (E)-2-methyl-but-2-ene dicarboxylic acid diester, (ii) (Z)-2-methyl-but-2-ene dicarboxylic acid diester and (iii) 2-methylene butane dicarboxylic diester and ...  
WO/2020/232742A1
Provided is a bifenthrin derivative, wherein same has a structural formula as shown in formula (I). The derivative is obtained mainly through modifying and transforming benzene rings at the ortho-position and terminal-position on an inte...  
WO/2020/233502A1
Disclosed is a method for preparing cannabidiol and analogues thereof; the method is implemented by means of reacting a resorcinol derivative with menthyl-2,8-dien-1-ol or a derivative thereof. The method of the present invention has adv...  
WO/2020/233588A1
Disclosed are a new crystal form of a treprostinil sodium salt (the structural formula thereof is shown as formula I) and a preparation method therefor. Specifically, disclosed are a five and half hydrates of the treprostinil sodium salt...  
WO/2020/230820A1
The purpose of the present invention is to produce a high-quality metal-organic structure in a short period of time. The method for producing a metal-organic structure according to the present invention comprises applying centrifugal for...  
WO/2020/230555A1
A method for forming a carbon-carbon bond, wherein: a reaction is performed by filling a container with a platinum group metal-loaded catalyst and having a starting material liquid permeate through the platinum group metal-loaded catalys...  
WO/2020/228713A1
Disclosed is a method for extracting useful substances from shrimp shells. The method comprises: crushing the shrimp shells, mixing the crushed shrimp shells and water, then heating same to 28℃-35℃, adjusting the pH to 6.8-7.5, prefe...  
WO/2020/230348A1
[Problem] To provide a reactor in which an oxidation reaction between a raw material liquid and an oxidizing gas can be efficiently carried out under a stable reaction condition. [Solution] A reactor 1a, in which an oxidation reaction is...  
WO/2020/228591A1
Provided in the present disclosure is a preparation method for a 6-substituted aminobenzofuran compound. Specifically, provided in the present disclosure is a preparation method for a compound represented by formula III. The method provi...  
WO/2020/223804A1
Described herein are techniques for converting carbonate in a carbonate loaded solution into syngas or C2+ products within an electrolysis cell that includes a cathodic compartment, an anodic compartment and preferably a bipolar membrane...  
WO/2020/226114A1
The present invention addresses the problem of providing a novel method for producing 2, 2'-bis(carboxymethoxy)-1, 1'-binaphthyl that is suitable as a resin starting material having excellent optical characteristics. The present inventio...  
WO/2020/215726A1
A recycling process of waste generated in synthesis of thioacetic acid, comprising: in a thioacetic acid synthesis process, pretreating a thioacetic acid synthesis reaction solution, transferring the reaction solution to a filter device,...  

Matches 1 - 50 out of 33,894