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WO/2021/113608A1 |
A system and method with a solid oxide electrolysis cell (SOEC), including feeding carbon dioxide and an olefin to the SOEC and discharging carbon monoxide and an olefin oxide from the SOEC, wherein the olefin oxide corresponds to the ol...
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WO/2021/103894A1 |
Disclosed are a molybdenum-vanadium composite oxide catalyst, a preparation method therefor and a use thereof. In the catalyst, X is selected from Nb, Sb, Te, Zn, Ca, and Bi; Y is selected from Nd, La, Ce, W, and Cu; and Z is selected fr...
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WO/2021/105038A1 |
The invention relates to a mixture containing (meth)acrylic acid and/or (meth)acrylic acid ester having C1 to C8 alkyl and one or more compounds of the general formula (II) as shelf life- and storage stabilizers.
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WO/2021/107015A1 |
The present invention addresses the problem of providing a preparation method with which highly pure 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl can be obtained with good production efficiency. As a solution, the present invention provides ...
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WO/2021/107016A1 |
The present invention addresses the problem of providing a production method by which high purity 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl can be obtained. A solution to this problem is a method for producing 2,2'-bis(carboxymethoxy)-1,1...
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WO/2021/104355A1 |
Provided are impurities (I) and (II) of dugliptin L-tartrate and preparation methods thereof. Impurities (I) and (II) are the oxidative impurities of dugliptin L-tartrate, and generate during the preparation and storage of dugliptin L-ta...
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WO/2021/105337A1 |
The present invention relates to a process for synthesizing large scale a compound of formula (I), or pharmaceutically acceptable salt thereof, which is useful as the key intermediate for the synthesis of compounds for prophylaxis and tr...
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WO/2021/101810A1 |
Various processes for preparing aldaric acids, aldonic acids, uronic acids, and/or lactone(s) thereof are described. For example, processes for preparing a C2-C7 aldaric acid and/or lactone(s) thereof by the catalytic oxidation of a C2-C...
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WO/2021/099425A1 |
The present invention is related to a method for the production of a dicarboxylic acid, wherein the method comprises - a bioconversion step, wherein in the bioconversion step, the dicarboxylic acid is produced from a precursor compound c...
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WO/2021/101834A1 |
Various processes for preparing aldaric acids, aldonic acids, uronic acids, and/or lactone(s) thereof are described. For example, processes for preparing a C5-C6 aldaric acid and/or lactone(s) thereof by the catalytic oxidation of a C5-C...
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WO/2021/091182A1 |
The present invention relates to a process and apparatus for manufacturing formic acid from a synthetic gas and, specifically, to a process and apparatus for manufacturing formic acid, in which: a mixed gas (mixture) of hydrogen prepared...
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WO/2021/089766A1 |
A highly pure form of ferric citrate and an industrially viable and advantageous process for its preparation are described.
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WO/2021/090038A1 |
The present invention relates to a process for converting CO2 to short chain organic acids, which comprises the steps of: a) dissolution of silver containing fulvate chlatrate komplex catalyst in water to produce a catalyst solution; b) ...
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WO/2021/083300A1 |
A high-carbon alkane diamine terephthalate, a preparation method therefor and an application thereof, which relate to the field of high-carbon alkane diamine terephthalate preparation. The preparation method for the high-carbon alkane di...
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WO/2021/087352A1 |
The present disclosure relates generally to solid/liquid separation processes. One aspect of the disclosure is a process including filtering a solid/liquid mixture comprising a solid crude aromatic carboxylic acid, a monocarboxylic acid ...
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WO/2021/080426A1 |
The invention is directed to a process for the preparation of an aromatic acid or a phenolic compound, said process comprising reacting a dienophile and a furanic compound comprising an acetal moiety in a Diels-Alders reaction to obtain ...
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WO/2021/077179A1 |
The present disclosure relates to a metal coordination polymer. In particular, the present disclosure relates to a layered metal coordination polymer, which can be used as a precursor to form nanostructures of various morphologies and co...
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WO/2021/073099A1 |
Disclosed is a continuous crystallization process for ibuprofen, wherein an ibuprofen product is obtained by means of multistage continuous crystallization; and the multistage continuous reaction crystallization comprises the steps of re...
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WO/2021/072942A1 |
The present invention provides a preparation method for zinc tartrate (I) shown as a structural formula (I). The method comprises: first, reacting tartaric acid (II) with sodium hydroxide to prepare sodium tartrate (III), and then reacti...
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WO/2021/073456A1 |
Provided are a class of macrocyclic and cage-like molecules based on a biphenylarene and derivative compounds, a synthesis method therefor and the use thereof. A series of new macrocycles and molecular cages are obtained in a high yield ...
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WO/2021/073132A1 |
Application of nervonic acid in the preparation of a pharmaceutical composition for inhibiting generation of melanin or whitening cosmetics for inhibiting generation of melanin. The purity of nervonic acid is greater than 95%, the struct...
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WO/2021/068305A1 |
Disclosed is a device for preparing ammonium propionate, comprising a main reaction kettle. A connecting box isolated from the main reaction kettle is attachedly provided on a side surface of the main reaction kettle, and another side of...
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WO/2021/068306A1 |
A sodium benzoate waste recycling apparatus, relating to the technical field of organic chemical engineering, and comprising a bottom plate (10), support legs (11), a volatilisation chamber (13), a warm water pool (14), and a dilute acid...
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WO/2021/064166A1 |
The presented invention relates to crystalline Form A and Form B of Bempedoic acid, a process for preparation thereof and a composition comprising the Form A or Form B.
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WO/2021/064753A1 |
The present disclosure discloses a process for production of malic acid. The process comprises obtaining a feed comprising one or more of crude maleic 5 anhydride, pure maleic anhydride, crude maleic acid, crude fumaric acid, pure maleic...
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WO/2021/066658A1 |
The invention is directed to a process for the preparation of an aromatic product comprising a step b) of contacting one or more intermediate compounds with a further acid to form the aromatic product. The intermediate compounds can be o...
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WO/2021/064527A1 |
A system and method for converting carbon dioxide into products by contacting the carbon dioxide with catalyst in the presence of hydrogen in a reactor.
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WO/2021/056811A1 |
Disclosed are an imine salt derivative and a preparation method therefor, and a preparation method for nicotine. The preparation method for nicotine comprises the following steps: adding an imine salt derivative having a general formula ...
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WO/2021/061545A1 |
A method is provided for synthesizing an aromatic carboxylic acid compound comprising providing an aromatic compound or an aromatic compound with at least one carboxylic group; providing a metal hydroxide and at least one carboxylate to ...
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WO/2021/060335A1 |
The present invention is characterized by comprising a step (hydrogenation step) for reacting 3-hydroxyadipic acid-3, 6-lactone with hydrogen in an aqueous solvent in the presence of a hydrogenation catalyst, and is able to produce adipi...
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WO/2021/058558A1 |
The present invention refers to a catalytic system comprising a transition metal compound on a solid carrier, wherein the content of the transition metal compound on the surface of the solid carrier is from 0.1 to 30 wt.-%, based on the ...
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WO/2021/058508A1 |
The present invention refers to a catalytic system comprising a transition metal compound on a solid carrier, wherein the content of the transition metal element on the surface of the solid carrier is from 0.1 to 30 wt.-%, based on the d...
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WO/2021/056850A1 |
Provided are an eutectic crystal formed by apixaban and a carboxylic acid, and a preparation method therefor. The eutectic crystal comprises an apixaban/malonic acid eutectic crystal, an apixaban/D‐malate eutectic crystal, an apixaban/...
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WO/2021/053239A1 |
The present invention concerns a process for producing formic acid, comprising (a) a carbon capture step wherein a source of carbon dioxide is contacted with an amine solution in a closed- top scrubber, to obtain an ammonium bicarbonate ...
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WO/2021/053244A1 |
The present invention concerns a process for producing formic acid, comprising (a) a carbon capture step wherein a source of carbon dioxide is contacted with an amine solution in an amine scrubber, to obtain an ammonium bicarbonate solut...
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WO/2021/053289A1 |
The present invention relates to a method for oxidative cleavage of a substrate consisting of at least one functionalised or non-functionalised linear olefin, in particular a mono- or polyunsaturated aliphatic carboxylic acid, or one of ...
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WO/2021/052353A1 |
The present invention relates to the technical field of enzyme inhibitors, and relates in particular to a hydroxamic acid derivative, a preparation method therefor and an application thereof. The hydroxamic acid group in the hydroxamic a...
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WO/2021/047053A1 |
Provided are a system and process for producing phthalic acid by strengthening xylene oxidation. The system comprises: a slurry bed reactor (1), micro-interface generators (2, 6), a circulation pipeline (10), a gas inlet pipeline (11) an...
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WO/2021/047056A1 |
Provided are an enhanced reaction system and process for preparing acetic acid by means of the carbonylation of methanol, and the present invention belongs to the technical field of the preparation of acetic acid. The enhanced reaction s...
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WO/2021/047052A1 |
A system and process for enhancing toluene oxidation, belonging to the technical field of preparing benzoic acid. A traditional bubble reactor is replaced with a tubular reactor (3) to improve the controllability of the oxidation reactio...
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WO/2021/047391A1 |
The present invention relates to a method for synthesizing acetic acid by low-pressure methanol carbonylation. The method comprises: (1) in the presence of a catalyst, introducing methanol and CO into a non-stir reactor to undergo a carb...
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WO/2021/048364A1 |
A process for manufacturing a substituted cyclohexanecarbonitrile said process comprising the following steps: - reacting the corresponding substituted cyclohexanecarboxylic acid with thionyl chloride to make the corresponding acyl chlor...
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WO/2021/047292A1 |
Disclosed in the present invention is a novel method for co-production of a high-efficiency carboxylic acid based on oxygen oxidation and ε-caprolactone, i.e., under the catalysis of a catalyst, oxidizing cyclohexanone to ε-caprolacton...
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WO/2021/047050A1 |
The present invention provides an enhanced carbonylation reaction system and process, and relates to the technical field of carbonylation preparation of carbonyl compounds such as aldehyde and ketone. The enhanced carbonylation reaction ...
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WO/2021/047393A1 |
A rectification device for oxo synthesis of acetic acid, of which the interior is provided with a dividing plate (1) for diving-wall rectification of crude acetic acid in the oxo synthesis of acetic acid, the diving plate (1) being verti...
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WO/2021/047392A1 |
The present invention relates to a process method for preparing acetic acid by carbonylating methanol by means of a reactor thermally coupled with a rectifying tower. The process method comprises: introducing methanol and CO into the rea...
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WO/2021/047490A1 |
Disclosed in the present invention is a method for preparing dexibuprofen, comprising: (1) after adding toluene into a reaction kettle, adding ibuprofen and n-octyl-d-glucamine, heating to 76 to 80°C, keeping the temperature and reactin...
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WO/2021/045145A1 |
Provided is a method for carbonylating a raw material substance with carbon monoxide to produce acetic acid, wherein said method is characterized in that: the method comprises a reaction step in which a reaction mixture that contains ace...
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WO/2021/042411A1 |
Disclosed are an AKR1C3 inhibitor or a pharmaceutically acceptable salt of same, a preparation method for same, and uses thereof. A structural optimization is performed with a nonsteroidal anti-inflammatory medicament, flurbiprofen, serv...
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WO/2021/038340A1 |
The invention relates to a method of separation by fractionalization of the antioxidant active ingredients of Rosemary plant, which are the diterpenes Carnosic acid and Camosol and the phenolic acid Rosmarinic Acid, through column chroma...
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