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Matches 801 - 850 out of 33,772

Document Document Title
WO/2016/076968A1
Processes for producing acetic acid wherein at least one process vent stream is treated in an absorber column that utilizes a scrubber solvent, e.g., acetic acid, methanol, and/or methyl acetate to remove hydrogen iodide therefrom.  
WO/2016/076970A1
A process for producing high purity acetic acid from a carbonylation reaction, wherein the carbonylation reaction is carried out while maintaining a low ethyl iodide content in the reaction medium. The ethyl iodide concentration may be m...  
WO/2016/076967A1
A process for producing acetic acid comprising the steps of carbonylating methanol in a reaction medium to form a crude acetic acid product; conveying the crude acetic acid product to a flash vessel at a flash flow rate; flashing the cru...  
WO/2016/076971A1
Process for producing acetic acid is disclosed in which a lithium compound is added to the reaction medium to maintain a concentration of lithium acetate from 0.3 to 0.7 wt.%. The concentration of the rhodium catalyst is maintained from ...  
WO/2016/076973A1
A process for producing acetic acid is disclosed, in which the methyl iodide concentration is maintained in the vapor product stream formed in a flashing step. The process includes introducing a lithium compound into the reactor and main...  
WO/2016/076559A1
The present invention relates to a continuous recovery method of (meth)acrylic acid and an apparatus used in the recovery method. According to the present invention, provided are a continuous recovery method of (meth)acrylic acid which e...  
WO/2016/077672A1
In a process for improving a carbonylation process, iron is removed to maintain an effective Space Time Yield (STY)of the rhodium catalyst of at least 80% of the maximum STY. The process comprises carbonylating methanol in a reactor in a...  
WO/2016/076972A1
A process for producing an acetic acid product having low butyl acetate content via a carbonylation reaction. The carbonylation reaction is carried out at a temperature from 100 to 300°C, a hydrogen partial pressure from 0.3 to 2 atm, a...  
WO/2016/077555A1
Described herein polymer precursor compounds (aka polymer building blocks) of derived from biobased compounds, and specifically biobased mevalonolactone and its related derivatives. Through oxidation these biobased precursors can be reac...  
WO/2016/070775A1
The present invention provides a comprehensive treatment method for a gulonic acid fermentation broth. Gulonic acid fermentation broth firstly is filtered through an organic membrane, then the obtained residue is filtered through a ceram...  
WO/2016/067160A1
Provided is a process for preparing azelaic acid.  
WO/2016/062810A1
The present invention provides a process for the production of a purified aromatic dicarboxylic acid comprising the steps of: i) catalytically oxidizing a hydrocarbon precursor in an organic solvent to form a product stream and a vent ga...  
WO/2016/062422A1
A process and an apparatus for the purification of a crude acrylic acid composition containing maleic anhydride as an impurity comprising the following steps: (a) carrying out at least one dynamic melt crystallization stage (14, 14a, 14b...  
WO/2016/061120A1
The present invention generally relates to a method for reducing polymer agglomeration or fouling, and its use in processes for the preparation of an acrylate, methacrylic acid, or a methacrylate. According to the present invention, the ...  
WO/2016/060891A1
Carboxylic acids are prepared by a one-step gas phase process comprising the step of contacting under halogen-free hydroxycarbonylation conditions an alkene, carbon monoxide, water, and a solid sulfide-containing catalyst.  
WO/2016/058283A1
The present invention relates to a preparation method for a polyunsaturated fatty acid-calcium, primarily comprising directly reacting a polyunsaturated fatty acid material and a water-soluble calcium compound to obtain a polyunsaturated...  
WO/2016/058070A1
The present invention relates to the method for extracting and isolating active substances from the pulp of the umbu plant (Spondias tuberosa Arr. Camara). Said active substances exhibit powerful chemopreventive activity, and in view of ...  
WO/2016/059127A1
The present invention provides a method for the production of purified terephthalic acid crystals in an integrated terephthalic acid – polyester plant comprising the steps of: i) providing a stream of purified terephthalic acid crystal...  
WO/2016/055463A1
The present invention provides method for removing residues from a first process stream comprising an organic solvent, water, a derivative of the organic solvent and the residues, comprising the steps of: i) feeding the first process str...  
WO/2016/055819A1
The invention provides a new process for the preparation of treprostinil of formula (I) and its salts using several new intermediates during the building of the ringsystem.  
WO/2016/056907A1
Disclosed is the oxidation of uronic acids, such as galacturonic acid, to the corresponding aldaric acids, such as galactaric acid, under neutral or acidic conditions. Use is made of a supported gold catalyst. The oxidation occurs in goo...  
WO/2016/055456A2
The present invention provides a method for raising steam in a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) h...  
WO/2016/057449A1
Processes for producing an α,β-unsaturated carboxylic acid, such as acrylic acid, or a salt thereof, using solid promoters are disclosed. The starting material either is a metallalactone or comprises an olefin and carbon dioxide. The s...  
WO/2016/055643A1
The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, wherein said process comprises: (a) separating off-gas gene...  
WO/2016/055542A1
The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, wherein off-gas generated by the oxidation reaction is vent...  
WO/2016/055466A1
The present invention provides a method for recovering a derivative of an organic solvent from a first process stream comprising the organic solvent, water, and the derivative of the organic solvent in a process for the production of an ...  
WO/2016/055453A1
The invention relates to a cylindrical reactor (R) with a vertical longitudinal axis for carrying out heterogeneously catalyzed gas-phase reactions by converting a gaseous educt stream into a product gas mixture, comprising a cylindrical...  
WO/2016/056851A1
The present invention relates to a continuous acrylic acid manufacturing method and a manufacturing apparatus using same, wherein the manufacturing method comprises the steps of: (1) using a catalyst to partially oxidize and react a reac...  
WO/2016/055452A1
The invention relates to a cylindrical reactor (R) with a vertical longitudinal axis for carrying out heterogeneous catalyzed gas phase reactions by converting a gaseous educt stream into a product gas mixture, having a cylindrical react...  
WO/2016/050582A1
The invention relates to a method for recovering acrylic acid, having the following steps a) separating a temperature-controlled mother acid stream from a crystallization device in the direction of an absorption column (201) and in the d...  
WO/2016/054129A1
A variety of inorganic-organic hybrid materials and various methods for preparing and using the same are described. The hybrid materials are graphene or graphitic materials populated with organic molecules and may have a variety of surfa...  
WO/2016/052985A1
Provided are: a method for the electrochemical reduction of carbon dioxide for manufacturing a high-concentration formate, and a device for the electrochemical reduction of carbon dioxide for manufacturing the high-concentration formate.  
WO/2016/054608A1
Process for producing acetic acid is disclosed in which the reaction medium is separated into a liquid recycle and a vapor product stream including acetic acid, methyl iodide, methyl acetate and water in a flash vessel. The vapor product...  
WO/2016/046284A1
The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) separating a vent gas from an o...  
WO/2016/048889A1
Processes for producing acetic acid herein generally include contacting methanol and carbon monoxide in the presence of a reaction medium under carbonylation conditions sufficient to form acetic acid, the reaction medium including a carb...  
WO/2014/202031A8
The present invention relates to a method for high-selectivity co-production of adipic acid and nitrocyclohexane, utilizing an oxynitride NOx as an oxidant and nitrating agent to transform in one step with high selectivity cyclohexane to...  
WO/2016/049018A1
A fatty acid composition is provided which can be used to make fattyacid fortified nutritional products. In one embodiment, the fatty acid composition comprises a fatty acid component, inorganic salts (which can include a phosphate salt)...  
WO/2016/042573A1
The present invention provides a process for preparation of {(2E,4E,6E,8E)-9-(4-methoxy-2,3,6- trimethyl)phenyl-3,7-dimethyl-nona-2,4,6,8}tetraenoate, an acitretin intermediate of formula (VI) with trans isomer ≥97%, comprising of reac...  
WO/2016/041351A1
The present invention relates to the technical field of organic chemistry, specifically an asymmetrical hydrogenation reaction of an α-ketonic acid compound, the scheme being as shown by formula (I), wherein R1 is a phenyl, a substitute...  
WO/2016/043264A1
A method for producing a vapor composition containing lactic acid, whereby: at vaporization, the formation of by-products such as acetaldehyde and carbon monoxide due to the heat decomposition of lactic acid and the like can be regulated...  
WO/2016/041506A1
Provided is a method for preparing a high-content conjugated linoleic acid product by using ordinary vegetable oil as a raw material. The method comprises three steps of alcoholysis, purification and isomerization of the vegetable oil. T...  
WO/2016/043626A1
The invention relates to novel salts of zinc and copper (II) having the general formula CH2=C(R1)COO-M-OCOR2, where М is Zn or Cu, R1 is Н or СН3, and R2 is a С2-С25 alkyl, or the group R2-СО-О stands for a crotonate, a sorbate ...  
WO/2016/043412A1
The present invention relates to a recovery method and a recovery device for (meth) acrylic acid. The recovery method can omit a separation process of high boiling point byproducts, and thus can economize on the energy supplied to a (met...  
WO/2016/038033A1
The invention relates to a method for producing a compound of (IV), wherein R1 is an alkyl group having 1 - 4 carbon atoms, comprising the step of reacting cyclohexene with hydrogen peroxide and an alcohol R1OH in the presence of a catal...  
WO/2016/037775A1
The invention relates to a method for the continuous dehydration of aqueous 3-hydroxypropanoic acid to form acrylic acid in a liquid phase, wherein the liquid phase has a temperature of 120 to 250°C, aqueous acrylic acid is continuously...  
WO/2016/039618A1
The invention provides method for producing high selectivity trans-crotonic acid from bio-based resource wherein the steps comprise of treatment of poly(3-hydroxbutyrate) (PHB) biomass with mild alkali; and thermal degradation of the PHB...  
WO/2016/039479A1
Provided is a catalyst which is able to be easily produced at low cost and has high activity and a long service life, while being suppressed in leakage of a metal. Some embodiments of the present invention provide a catalyst which is cha...  
WO/2016/036757A1
The present disclosure relates to methods for separating and purifying a long chain diacid from other long chain diacids, monocarboxylic acids, hydroxyl acids or alkanes by simulated or actual moving bed chromatography.  
WO/2016/031527A1
Provided is an oxidation reactor that is capable of oxidizing a hydrocarbon with good reaction efficiency and energy efficiency. The oxidation reactor comprises a liquid inlet flow passage through which liquid containing a hydrocarbon as...  
WO/2015/104721A3
An improved process for the preparation of Tranexamic acid is disclosed. The process can be performed at moderate reaction conditions such as at moderate temperatures and moderate pressure for large scale manufacture of Tranexamic acid.  

Matches 801 - 850 out of 33,772