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Matches 601 - 650 out of 33,284

Document Document Title
WO/2016/100769A1
This invention relates to solvents for extracting C1 C4 carboxylic acids from aqueous streams. More specifically, the extraction solvents include one or more salts composed of a tetraalkylphosphonium cation and a phosphinate anion. The e...  
WO/2016/098764A1
This method for producing terephthalic acid includes: a first hydrolysis step in which an object to be processed including polyethylene terephthalate is loaded into a sealed container, and subsequently exposed to an atmosphere having a p...  
WO/2016/098801A1
[Problem] To provide a method for preparing a highly active and highly durable catalyst in which the elution of catalytic metals is inhibited when carrying out liquid phase oxidation without using an alkali; and a method for manufacturin...  
WO/2016/094351A1
The use of a metal phosphate compound in a transition metal catalyzed carbonylation reaction to increase the rate of carbonvlation reaction is provided. In some aspects, the metal phosphate compound is used in conjunction with a rhodium ...  
WO/2016/091966A1
The present invention concerns a halogenation process, in which a 1,1- dihaloethene CX2=CH2 (I) with at least one halogenation agent. The invention concerns further a process for the manufacture of chlorodifluoroacetic acid chloride (CDF...  
WO/2016/092198A1
The invention relates to the use of haloapatites as a catalyst in the dehydration reaction of α-hydroxylated carboxylic acids or acid esters, in particular lactic acid or methyl lactate, as well as to a method for synthesizing unsaturat...  
WO/2016/092900A1
A method for producing a fluoropolyether that contains an acid fluoride and has a low molecular weight by decomposing a triflate or trifluoroacetate of a fluoropolyether having a hydroxyl group in the presence of a Lewis acid.  
WO/2016/094684A1
Processes for producing acetic acid are presented herein. One or more embodiments include processes for controlling downstream water concentration in acetic acid production process including contacting methanol and carbon monoxide in the...  
WO/2016/090461A1
The present invention relates to crystalline 1-adamantanamine salts, and polymorphic forms thereof, of prostaglandin analog intermediates of formula 3a, 4a and 6a, useful in the preparation of Tafluprost and Lubiprostone and processes fo...  
WO/2016/087408A1
The present invention relates to a process for manufacturing succinic acid as obtained by fermentation, said process exhibiting a high yield in terms of succinic acid crystals recovery and allowing to achieve a final product with a low c...  
WO/2016/088578A1
Provided is a method for efficiently purifying an easily polymerizable substance, whereby the operational complexity can be eliminated by, for example, reducing the number of times of cleaning a wire netting. The method according to the ...  
WO/2016/087419A1
The present invention concerns a process for manufacturing a fraction comprising carboxylic acid anhydride by reaction of a fraction comprising carboxylic acid with a ketene, and the use of the fraction comprising carboxylic acid anhydri...  
WO/2016/089808A1
A process of making terephthalic acid or a derivative of terephthalic acid is described. The process includes reacting a derivative of 2,5-dimethylfuran, with a dienophile containing an unsaturated 2-carbon unit, in the presence of a cat...  
WO/2016/086710A1
Disclosed is a carboxylic acid preparation method. The method is characterized in that: a compound (II) reacts in the presence of hydrogen peroxide and a base to produce a target product (I) represented by the following equation: R1 is a...  
WO/2016/087807A1
The invention relates to a process for the synthesis of a compound having the following formula (I), or a salt thereof, in which formula (I) R is a COOH, CH2OH or CHO group, comprising the step according to which but-3-ene-1,2-diol (BDO)...  
WO/2016/087501A1
The present invention relates to a method for producing acrylic acid from ethanoic acid and formaldehyde, comprising the steps of (a) preparing a substance flow S1 comprising ethanoic acid and formaldehyde, the molar ratio of ethanoic ac...  
WO/2013/147708A3
The invention relates to a process for the production of a diene. In the process, a lactone is heated in the presence of a first catalyst system to produce an alkene and carbon dioxide and the alkene is contacted with a second catalyst s...  
WO/2016/082010A1
The proposed invention is a process for obtaining the ore dust suppressant resin with the chemical recycling of Poly thermoplastic polymer (Ethylene Terephthalate) or PET. It is proposed a method for obtaining the resin by using the depo...  
WO/2016/083735A1
The present invention concerns a method for the metathesis of an olefin or olefins and, more specifically, of a fatty acid or fatty acids comprising at least one unsaturation. The method according to the invention comprises bringing said...  
WO/2016/083749A1
The invention relates to a method for producing succinic acid crystals, comprising double crystallisation and the use of at least one surfactant during the first crystallisation step. The invention also relates to the succinic acid cryst...  
WO/2016/055456A3
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/2016/085317A1
The invention relates to a method for extracting ferulic acid and/or salts of same, from a previously conditioned source rich in ferulic acid and salts of same, comprising: adsorbing the ferulic acid and/or the salts thereof in a column ...  
WO/2016/079126A1
The present invention concerns a process for the production of a fluorinated carboxylic halide having a reduced content of impurities, a fraction of the fluorinated carboxylic halide having a reduced content of impurities, and its use in...  
WO/2016/054065A3
Processes for separating a di-carboxylic acid or salt thereof from a mixture containing the di-carboxylic acid or salt thereof and one or more other components are provided. Also separation media useful for these separation processes is ...  
WO/2016/038622A3
The present invention relates to an improved process for the preparation of [[2(S)-[[4(R)-(3-hydroxyphenyl)-3(R),4-dimethyl-1-piperidiny l]methyl]-l -oxo-3-phenylpropyl]amino]acetic acid dihydrate, represented by the following structural...  
WO/2016/078698A1
The invention relates to a process for obtaining a formate from a reaction mixture (10), in which a polyoxometallate ion which serves as catalyst is in contact with an organic substance at a temperature below 120°C to form formic acid i...  
WO/2016/079044A1
The present invention relates to an optimized process for preparing methacrylic acid, wherein methacrolein is prepared in a first stage from propionaldehyde and formaldehyde by means of a Mannich reaction and oxidized in a second stage t...  
WO/2016/078594A1
Disclosed are a pyrrole ring-containing proton pump inhibitor being hemifumarate, crystal form, intermediate and medical use thereof. In particular, the present invention relates to a pyrrole ring-containing proton pump inhibitor being a...  
WO/2016/077832A2
The present disclosure provides a process for the preparation of compounds of formula (III), compounds of formula (V), and corresponding salts of formula (IV). The compounds made by the methods and processes of the invention are particul...  
WO/2016/026014A8
The present invention provides a perillic acid derivative in the form of a salt having formula II, with anti-cancer activity, in which the counter-ion M+ comprises alkali or alkaline earth metals, such as Na+ (sodium), K+ (potassium), Ca...  
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.  

Matches 601 - 650 out of 33,284