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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...
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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...
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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; ...
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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...
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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 ...
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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...
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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...
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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 ...
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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...
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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)
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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...
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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...
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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...
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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...
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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...
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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. ...
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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...
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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.
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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...
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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)...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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WO/2018/171027A1 |
The present invention relates to a method for processing an acetic acid solvent in crude terephthalic acid (CTA) in an oxidation unit of a pure terephthalic acid (PTA) industrial device. In the present invention, a filter cake in CTA is ...
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WO/2018/172783A1 |
There is described a method of reducing polymer tar build-up in the production of methyl methacrylate and/or methacrylic acid by the acetone cyanohydrin process. In the method a stabiliser is contacted with the amide stage reaction mediu...
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WO/2018/171028A1 |
The present invention relates to a method for recycling mother liquor in a PTA refined unit. The present invention achieves recovery of waste heat carried by PTA mother liquor and PT acid by using high-efficient multi-stage flash evapora...
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WO/2018/173307A1 |
The purpose of the present invention is to provide a method for industrially effectively producing, without significant cost, acetic acid which has a good potassium permanganate test value. The present invention provides a method includi...
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WO/2018/166881A1 |
Method for the preparation of a solid mixture comprising the steps: - preparing a solution comprising - oxalic acid or oxalic acid salts, - one or more inorganic salts, - lyophilizing the solution
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WO/2018/163210A2 |
The present invention provides a process for preparation of halo substituted benzoic acid compound of Formula (1) and intermediates thereof.
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WO/2018/163004A1 |
Disclosed is a method of producing hydrogen from monoethylene glycol. The method includes mixing an aqueous base, monoethylene glycol, and an iridium chloride (IrCl3) catalyst solubilized therein under conditions sufficient to produce hy...
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WO/2018/163448A1 |
Provided is a method for producing acetic acid, by which it is possible to greatly improve the service life of a silver-substituted ion exchange resin (IER) that is used to remove organic iodine compounds in acetic acid. In this method f...
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WO/2018/165283A1 |
A method of making acrylic acid in liquid phase by contacting a feed stream containing lactic acid, lactide, or mixtures thereof with a molten salt catalyst comprising a protic ionic liquid (PIL), which contains a bromide anion (Br-), is...
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WO/2018/163449A1 |
Provided is a method whereby acetic acid that exhibits good results in a potassium permanganate test can be produced efficiently in an industrial manner without involving excessive cost. This method for producing acetic acid includes a c...
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WO/2018/163198A1 |
The present invention disclosed a single step process for the conversion of cyclohexane to adipic acid by using manganese oxide, tungsten oxide or Mn-WOx nanostructure having improved yield and selectivity.
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WO/2018/162906A1 |
The present invention relates to a process for preparing a magnesium formate based metal-organic framework. The process comprises (a) combining magnesium or magnesium oxide with formic acid; (b) heating the reaction mixture of step (a) a...
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WO/2018/158672A1 |
A continuous process for oxidizing a di-alkyl substituted aromatic compound with compressed air in a primary bubble column reactor; including removing a portion of the three phase reaction medium to a post–oxidation bubble column unit ...
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WO/2018/159028A1 |
The present invention provides an industrially excellent production method by which N-benzyl-2-bromo-3-methoxypropionamide can be safely produced in high yield at lower cost. The production method of the present application comprises, in...
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WO/2018/153727A2 |
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. ...
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WO/2018/154314A1 |
A method of processing an aqueous hemicellulosic stream containing lignin, comprising: (a) contacting an aqueous hemicellulosic stream containing lignin with a C3-8 alkyl alcohol at elevated temperature and acidic pH; (b) separating the ...
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WO/2018/154056A1 |
A process (100) is proposed for producing ethylene by subjecting ethane in a reaction feed to partial catalytic conversion by oxidative dehydrogenation (1) in the presence of oxygen to give a gaseous first mixture of components that comp...
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WO/2018/150379A2 |
Methods for preparation of olefins, including 8- and 11-unsaturated monoenes and polyenes, via transition metathesis-based synthetic routes are described. Metathesis reactions in the methods are catalyzed by transition metal catalysts in...
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WO/2018/150797A1 |
Provided is a catalyst that can produce methacrylic acid at high selectivities by the gas-phase catalytic oxidation of methacrolein. The catalyst is a catalyst for production of methacrylic acid which is used for the production of methac...
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WO/2018/149791A1 |
The invention relates to a catalyst material for oxidizing hydrocarbons with gaseous oxygen, containing V and a TiO2 material which is doped with Sb and to the use of TiO2 material doped with Sb as a carrier material in a catalyst materi...
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WO/2018/150421A1 |
The invention provides efficient cyclization processes of hydroxyalkenoic acids and products produced therefrom. The following reactions are claimed: Formula (I), (II), (V) and (VI).
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WO/2018/146895A1 |
In the present invention, acetic acid is produced by means of a process including: a step (1) for performing a methanol carbonylation reaction; a step (2) for separating a reaction mixture into a volatile phase and a low-volatility phase...
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