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Matches 1 - 50 out of 33,981

Document Document Title
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...  
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...  
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.  
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...  
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...  
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.  
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 ...  
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 ...  
WO/2021/034800A3
Provided herein are complexes of ferrous (Fe2+) ion with pyruvate ion and with citrate ion, and methods of making such complexes. The ferrous complexes are useful, inter alia, for providing ferrous iron to plants in a stable form, e.g., ...  
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...  
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 ...  
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...  
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/...  
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 ...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2021/038391A1
A process for the purification of crude terephthalic acid, wherein a slurry containing crude terephthalic acid (CTA) crystals undergo solvent interchange in a first filtration step with counter-current washing in rotary pressure filters ...  
WO/2021/041361A1
Compositions and methods are provided for producing crystalline forms of organic acids or salts or lactones thereof from an aqueous solution. More specifically, methods are provided for producing a crystalline form of a salt of mevalonic...  
WO/2021/038394A1
An apparatus for the purification of crude terephthalic acid, wherein a slurry containing crude terephthalic acid (CTA) crystals undergo solvent interchange in a first filtration step with counter-current washing in rotary pressure filte...  
WO/2021/039817A1
The present invention aims to provide a carboxylic acid fluoride production method having improved product yield, without creating an HCl by-product in the reaction system, i.e., without forming a complex with carboxylic acid fluoride ha...  
WO/2021/038374A1
A system and method for coproduction in the production of ethylene, including contacting ethane with an oxidative dehydrogenation (ODH) catalyst in presence of oxygen in a first reactor to dehydrogenate ethane to ethylene, and contacting...  
WO/2021/040267A1
The present invention relates to a method of extracting caffeic acid and rosmarinic acid from rosemary, and more specifically, to a method of extracting caffeic acid and rosmarinic acid from rosemary, the method comprising the steps of: ...  
WO/2021/032673A1
The present application relates to a compound of the following formula (I), in which: - R1, R2, R3 and R4 represent, independently of each other, H or a (Ci-C30) alkyl group, the total sum of the number of carbon atoms of R1, R2, R3 and ...  
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...  

Matches 1 - 50 out of 33,981