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Matches 301 - 350 out of 33,795

Document Document Title
WO/2019/006149A1
The present disclosure provides for a method for measuring the concentration of one or more components in a feed stream or reactor mixture of a process for producing acetic acid by both infrared and Raman spectroscopic analyses. In some ...  
WO/2019/005630A1
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) recovering alkylamine from an aqueous solution of an alkali hydroxide hydrolysis of the mixed amide derivatives by dist...  
WO/2019/005629A1
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) adding water and an extractant solvent to the aqueous suspension of an acid hydrolysis of the mixed amide derivatives t...  
WO/2019/002240A1
The present invention pertains to a process for recovering acetic acid from an aqueous stream containing acetic acid, comprising the steps of (a) contacting the aqueous stream with tri-n-octylamine and 1-undecanol, with the weight ratio ...  
WO/2019/006377A1
The present invention is directed to compositions which may undergo thermolysis to produce a higher purity acrylic acid product. In preferred embodiments of the present invention, the compositions comprise polypropiolactone and one or mo...  
WO/2019/005532A1
A process for manufacturing a carboxylic acid is provided, in one aspect, the process comprises oxidizing a feedstock comprising a substituted aromatic hydrocarbon to form a liquid-phase aromatic carboxylic acid; crystallizing at least a...  
WO/2019/006366A1
Provided herein are reactor systems and processes for producing organic acids directly from beta-lactones. Such reactor systems and processes involve the use of a heterogeneous catalyst, such as a zeolite at vapor phase conditions. The r...  
WO/2019/005633A1
There is disclosed a process for the separation of long chain dibasic acid and fatty acid, comprising: (1) reacting a mixture of long chain dibasic acid and fatty acid with ammonium hydroxide to form an insoluble ammonium salt of fatty a...  
WO/2019/005631A1
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) cooling the hydrolysis solution to crystallize and separate alkali salt of long chain dibasic acid to provide an aqueou...  
WO/2019/002189A1
The invention also relates to alkoxylated hydroxy carbon acids and to a method for the production and use thereof.  
WO/2018/235094A1
The instant disclosure provides a process for synthesis of compound of Formula: wherein Mz+ is a transition metal ion and X and Y are carboxylate anions. The catalysts are hydrocarbon soluble and the process for their preparation, as dis...  
WO/2018/236950A1
A method is provided for separating a dicarboxylic acid product from a mixture containing such dicarboxylic acids. The method involves: providing a dicarboxylic acid-containing mixture of which at least 35% of the carboxylic acid content...  
WO/2018/235012A1
Process for producing levulinic acid, wherein a carbohydrate-based substrate is subjected to a treatment step in aqueous environment at acid pH at a temperature from 120°C to 200°C, so as to obtain a reaction mixture comprising levulin...  
WO/2017/210122A8
Processes are provided for the production of methenamine mandelate that do not require the isolation of produced methenamine prior to production of the methenamine mandelate.  
WO/2018/234999A1
Processes for producing a disubstituted oxalate are disclosed. The process includes contacting a mixture of cesium salt and gamma alumina with one or more alcohols and carbon dioxide (CO2) under reaction conditions sufficient to produce ...  
WO/2018/231624A1
This disclosure provides for routes of synthesis of α,β-unsaturated carboxylic acids and their salts, including acrylic acid. For example, disclosed is a process for producing an α,β-unsaturated carboxylic acid or its salt, comprisin...  
WO/2018/229013A1
The invention concerns a method for obtaining a free glucaric acid solution from a solution comprising non-free glucaric acid, water and at least one other constituent including at least one ion, characterised in that it comprises the fo...  
WO/2018/228081A1
Discloses is a method for synthesizing 4-hydroxybenzoic acid by using PX as a raw material. PX is dissolved in an organic solvent and undergoes oxidation reaction with an oxidant under the action of an M-MOF catalyst, after the reaction ...  
WO/2018/231623A1
This disclosure provides for synthetic routes of acrylic acid and other α,β-unsaturated carboxylic acids and their salts, including catalytic methods. For example, there is provided a process for producing an α,β-unsaturated carboxyl...  
WO/2018/230011A1
Provided is a method for producing C4 dicarboxylic acid crystals having high oil absorption. This method for producing C4 dicarboxylic acid crystals comprises a step in which C4 dicarboxylic acid crystals are precipitated from an aqueous...  
WO/2018/231620A1
Disclosed is a continuous process for producing α,β-unsaturated carboxylic acids or salts thereof, comprising: 1) in a first stage, contacting (a) a transition metal precursor compound comprising at least one first ligand, (b) optional...  
WO/2018/229237A1
The present invention relates to the production of tri-functional aromatic molecules from diformylfuran, in particular to the production of tri-methyl benzene derivatives such as for example trimellitic acid or 1,2,4-tri(aminomethyl)benz...  
WO/2018/228149A1
The present invention belongs to the field of pharmaceutical synthesis, and relates to a preparation method for a substituted phenylacetic acid derivative, in particular to a method for preparing 2-[4-(2-oxopentylmethyl)phenylpropionic a...  
WO/2018/215418A1
The present invention concerns a method for preparing a compound of formula (I) HR1R2C-CF2-(C=0)-Y from a compound of formula (II) R1C2C=CX-(C=O)-Y or formula (III) HR1R2C-CX1X2-(C=O)-Y brought into contact with hydrofluoric acid; R1 and...  
WO/2018/216699A1
Provided is a method for producing (meth)acrylic acid, the method comprising: a step for subjecting a raw material for producing (meth)acrylic acid to a contact gas phase oxidation reaction to obtain a (meth)acrylic acid-containing gas; ...  
WO/2018/217943A1
A matrix metalloprotease (MMP) activatable conjugate is provided to inhibit glioblastoma (GBM) proliferation through glioma tumor cell and glioma stem cell differentiation. The conjugate is structurally characterized by having dichloroac...  
WO/2018/214089A1
A method for preparing 2-propylheptanoic acid. The method comprises the following steps: step 1) mixing, in parts by weight, 100 parts of sodium hydroxide, 500-800 parts of 2-propylheptanol, and 1-20 parts of a catalyst for reaction for ...  
WO/2018/209842A1
Disclosed in the present invention is a trifluoroacetic acid synthesis process, the preparation process comprising: placing a solid catalyst in a fixed bed; using a steady-state pump to pass hydrogen peroxide through same; raising to a f...  
WO/2018/206981A1
A method of direct oxidation of a hydrocarbon to produce an oxygenated reaction product, wherein said method comprises contacting a peroxide and oxygen and the hydrocarbon with a suspension of catalyst particles dispersed in a liquid rea...  
WO/2018/205108A1
Provided is a method for the alcoholysis of an amide. The method comprises subjecting an amide-containing compound to alcoholysis under alkaline conditions using an epoxy compound as an accelerator. The method described above is easy to ...  
WO/2018/209290A1
A method is provided to conveniently separate racemic (3R,4S)-3-acetamido-4-allyl-N-(tert-butyl)pyrrolidine-3-carb oxamide and (3S,4R)-3-acetamido-4-allyl-N-(tert-butyl)pyrrolidine-3-carb oxamide using selective crystallization with chir...  
WO/2018/202724A1
Production of adipic acid and derivatives thereof The invention relates to a catalytic process for the production of a compound of formula (I) from a compound of formula (II)  
WO/2018/200253A1
Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a feed stream containing lactic acid, lactic acid derivatives, or mixtures thereof with a molten salt catalyst comprising an ionic liquid (IL) a...  
WO/2018/197539A1
The present invention concerns a process for the reduction of content of carboxylic acids and derivatives thereof in oleum, disulfuric acid or concentrated sulfuric acid. The invention further concerns a process for the manufacture of ca...  
WO/2018/200032A1
Processes for recovering a purified aromatic carboxylic acid include contacting a crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid; crystall...  
WO/2018/195422A1
A process for a reactive separation of organic molecules from biomass includes a reaction step for the biomass, a simultaneous extraction step using a solvent, and a filtration step to recover products, wherein the products comprise feru...  
WO/2018/191263A1
The present disclosure provides for a method for measuring the concentration of one or more components in a reactor or a separation unit of an acetic acid process by Raman spectroscopic analyses. In some embodiments, the conditions in th...  
WO/2018/153727A3
The present invention relates to a process for the carbonylation of allyl alcohols at low temperature, low pressure and/or low catalyst load. In an alternative embodiment, an acylation product of allyl alcohol is used for carbonylation. ...  
WO/2018/185423A1
The subject matter of the present invention is the use of a dividing-wall column as purification/finishing column in a process for recovering (meth)acrylic acid on the basis of the use of two distillation columns in the absence of extern...  
WO/2018/047184A8
The invention provides a process for recovering oxalic acid used in ferrous metal pickling procedures, thereby reducing the total cost and environmental load of the pickling treatments.  
WO/2018/180696A1
The object of the present invention is to provide a method for producing a cis,cis-1,2,4-cyclohexane tricarboxylic acid crystal, wherein a high purity cis,cis-1,2,4-cyclohexane tricarboxylic acid crystal is obtained. This method for prod...  
WO/2018/181544A1
The present invention provides a catalyst for producing an unsaturated carboxylic acid, the catalyst being used to obtain an unsaturated carboxylic acid from an unsaturated aldehyde and containing a component A represented by formula (I)...  
WO/2018/181226A1
The objective of the present invention is to provide a catalyst with which pressure losses and coking are suppressed and with which it is possible to produce a target substance with a high yield, when the catalyst is used to produce the ...  
WO/2018/141654A4
The invention relates to a method for producing a mixed oxide material, comprising the steps of: a) producing a mixture of starting compounds containing molybdenum, vanadium, niobium and tellurium-containing starting compounds as well as...  
WO/2018/179457A1
Provided is a method capable of efficient industrial production of high quality acetic acid with good potassium permanganate test value and low impurity content, without incurring enormous cost. This acetic acid production method compris...  
WO/2018/180854A1
The purpose of the invention is to provide a method for producing 1,2,4,5-cyclohexanetetracarboxylic dianhydride with which a high dehydration rate can be achieved stably. This method for producing 1,2,4,5-cyclohexanetetracarboxylic dian...  
WO/2018/176026A1
This disclosure describes systems and methods for using pyrolysis tail gas as the source for additional hydrogen to be used in the pyrolysis reaction. Tail gas is separated from the pyrolysis products and a portion of the tail gas is con...  
WO/2018/172062A1
A process for preparing an anticorrosion component for antifreeze by oxidation of an oxydiol (I) in which x is 0 (zero) or a positive integer from 1 to 10 with molecular oxygen at a temperature of 20 to 100°C and a partial oxygen pressu...  
WO/2018/171251A1
The invention discloses a solid-supported metalloporphyrin catalyst and an application thereof in the preparation of maleic acid. The solid-supported metalloporphyrin catalyst is used for preparing maleic acid by catalyzing furfural and ...  
WO/2018/173057A1
The present disclosure provides a bifunctional linker for coupling at least one functional moiety, preferably a bis-allyl propionic acid (BAPA), to a polymer-containing matrix. Also disclosed by the present disclosure are anhydrides of t...  

Matches 301 - 350 out of 33,795