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Matches 1 - 50 out of 3,012

Document Document Title
WO/2020/127287A1
In a process for making dimethyl carbonate (DMC) by direct carbonylation, where dimethyl ether (DME) is used as feed, any formation of water is eliminated completely in the oxidative carbonylation step. The carbonylation of DME into DMC ...  
WO/2020/126989A1
The invention relates to a process wherein a dialkyl carbonate stream containing an ether alkanol impurity is subjected to extractive distillation using an extraction solvent to obtain a top stream comprising dialkyl carbonate and a bott...  
WO/2020/116485A1
Provided is a dialkyl carbonate production method that enables a dialkyl carbonate to be produced in a simple manner and in a short reaction time and enables easy processing of by-products. This dialkyl carbonate production method involv...  
WO/2020/100970A1
The purpose of the present invention is to provide a method for safely and efficiently producing a halogenoformic acid halogenated alkyl ester that also serves as a synthesis intermediate of a carbamate or an isocyanate compound. This me...  
WO/2020/100977A1
The purpose of the present invention is to provide a method for safely and efficiently producing a carbonate derivative even when a base is not used. This method for producing a carbonate derivative includes a step in which a composition...  
WO/2020/070760A1
The present invention relates to an improved process for the preparation of 1,2,3-Propanetriyl tris (4-phenylbutanoate) compound of formula-1, comprising 4-phenyl butyric acid compound of formula-2 with glycerol to provide 1,2,3-Propanet...  
WO/2020/067577A1
Provided is a synthesis method comprising a first step of producing a carbonate compound from carbon monoxide and an alcohol-based compound at an anode of a first electrochemical cell comprising a cathode and the anode, and a second step...  
WO/2020/030582A1
The present invention relates to a process for providing carbonic acid esters of formula (I). Further, the invention relates to the intermediates of the formula (IVa).  
WO/2020/022416A1
The present invention provides a method for producing an aromatic nitrile compound, the method comprising a dehydration reaction wherein a desired compound can be selectively obtained with high yield while suppressing the generation of b...  
WO/2020/021364A1
Processes for producing a disubstituted oxalate and/or disubstituted carbonate are disclosed. The processes use a water removal agent to tune the amount of disubstituted oxalate and/or disubstituted carbonate in the product mixture. One ...  
WO/2020/013135A1
Provided are a method for producing carbonate esters, and a catalytic structure for producing carbonate esters, whereby solid catalyst powder formation and detachment are suppressed and superior carbonate ester reaction efficiency is yie...  
WO/2019/158463A1
A process for the work-up of salt-containing process water which contains an alkali metal chloride as salt in a concentration of at least 4% by weight and organic or inorganic and organic impurities from chemical production processes and...  
WO/2019/148604A1
Disclosed is a method for preparing a dialkyl carbonate by means of urea alcoholysis, relating to the field of chemical synthesis, and in particular to the preparation of a dialkyl carbonate. Urea and alkyl monohydric alcohol are subject...  
WO/2019/138993A1
To achieve a method for producing a carbonic ester at a high yield by a simple process while suppressing formation of by-products, for example, a method for producing an aliphatic carbonic ester. The above problem is solved by a method f...  
WO/2019/097005A1
The invention relates to aluminum containers containing dicarbonates and to a method for producing the packaged dicarbonates.  
WO/2019/065549A1
The present invention addresses the problem of achieving: a method for making it possible to reuse a catalyst for carbonate ester production by restoring activity to the catalyst with a simple procedure and without complicated steps such...  
WO/2019/039317A1
The present invention addresses the problem of providing a method for efficiently producing a dialkyl carbonate. The problem can be solved by a method for producing a dialkyl carbonate by reacting urea and at least one alkyl carbamate wi...  
WO/2019/007828A1
The present invention relates to a method for electrochemically producing arylalkyl carbonates or diaryl carbonates, which is characterized in that compounds of formula (1) R1-OH, wherein the radical R1 is an alkyl radical, preferably a ...  
WO/2019/007831A1
The invention relates to an electrochemical process for electrochemically synthesizing diaryl carbonates, characterized in that a formula of formula R-OH (1), where R is an aryl group, preferably a tert-butylphenyl, cumyl-phenyl, naphthy...  
WO/2018/233093A1
A system and a process for co-producing dimethyl carbonate and ethylene glycol. The system comprises an interconnected ethylene carbonate preparation unit and an ethylene carbonate alcoholysis unit. The ethylene carbonate preparation uni...  
WO/2018/211952A1
The purpose of the present invention is to provide a method for safely and efficiently producing a carbonate derivative. This carbonate derivative production method is characterized by emitting light in the presence of oxygen to a compos...  
WO/2018/211953A1
The purpose of the present invention is to provide a method for safely and efficiently producing a fluorinated carbonate derivative. This fluorinated carbonate derivative production method is characterized by emitting light in the presen...  
WO/2018/163128A1
A method of producing a diaryl carbonate, comprising: performing both a transesterification reaction and a disproportionation reaction within a reactive distillation column by introducing a feed stream comprising a dialkyl carbonate to t...  
WO/2017/160044A3
The present invention provides a catalyst composition containing an imidazolium halide and a zinc halide in an alkylene carbonate solvent, a method for preparing the catalyst composition, and a method for preparing an alkylene carbonate ...  
WO/2018/097529A3
The present invention relates to a method for producing fluorine-containing dialkyl carbonate compounds, which are suitable as non-aqueous solvents for non-aqueous electrolytes used in secondary batteries. When an alkyl chloroformate and...  
WO/2018/125879A1
A method of treating an organic carbonate stream comprising passing the organic carbonate stream through a fixed bed to remove contaminants and produce a less contaminated stream wherein the fixed bed comprises a weak base.  
WO/2018/125878A1
A method of treating an organic carbonate stream comprising passing the organic carbonate stream through a fixed bed to remove contaminants and produce a less contaminated stream wherein the fixed bed comprises alumina or silica.  
WO/2018/116775A1
Provided is a method for regenerating an aromatic amide compound into the corresponding aromatic nitrile compound, the method rendering a dehydration reaction possible, in which a desired compound can be selectively obtained in a high yi...  
WO/2018/107450A1
This invention provides an electrochemical process for producing a propiolactone compound comprising reacting a compound having at least one ethylenically unsaturated carbon-carbon double bond with carbon dioxide in the presence of an el...  
WO/2018/096039A1
The present invention concerns an extract of plants from the Tagetes genus enriched with leontopodic acid B, a method for preparing such an extract and a cosmetic composition and a nutraceutical composition and a pharmaceutical compositi...  
WO/2018/097529A2
The present invention relates to a method for producing fluorine-containing dialkyl carbonate compounds, which are suitable as non-aqueous solvents for non-aqueous electrolytes used in secondary batteries. When an alkyl chloroformate and...  
WO/2018/091370A1
The invention relates to a method for the electrochemical production of aryl alkyl carbonates and diaryl carbonates, in which aromatic compounds are reacted anodically with carbonates, as well as to the use thereof to produce polycarbonate.  
WO/2018/078292A1
The invention relates to a process for the degradation of at least one polymer of an alkene carbonate, to a polymeric composition for a lithium-ion battery electrode comprising a degradation residue obtained by this process, to a process...  
WO/2018/073124A1
The invention relates to the preparation of fluorosubstituted fluoroformate from halosubstituted haloformate by reaction with at least one fluorinating agent in the presence of a catalyst. The further preparation of fluorosubstituted (fl...  
WO/2018/041602A1
The invention relates to a method for producing a polycarbonate by reacting at least one diaryl carbonate with at least one aromatic hydroxy compound, which are first mixed in a mixing device and, as a raw material mixture, placed in a r...  
WO/2018/041360A1
The invention relates to a method for producing dialkyldicarbonates from the corresponding chloroformic acid alkyl esters using special tertiary amines as catalysts.  
WO/2018/028505A1
A catalyst for synthesizing dimethyl carbonate by oxidative carbonylation of liquid phase methanol and preparation method. The catalyst comprising: a copper halide and an ionic liquid. The mass ratio of the copper halide to the ionic liq...  
WO/2018/016377A1
Provided is a method for producing a chloroformate compound safely, with high efficiency and in a large quantity. A chloroformate compound can be produced by mixing a solution of triphosgene, an amine and an alcohol compound together in ...  
WO/2017/221908A1
Provided is a method that enables a dehydration reaction by which an aimed compound is able to be selectively obtained at high yield by suppressing the generation of a by-product in the regeneration of an aromatic amide compound to a cor...  
WO/2017/212289A1
The present invention relates to a method of reducing, cleaving and/or coupling at least one C=O, C-O, C=C or C=N bond of a compound, using a reagent comprising a stannyl cation.  
WO/2017/206692A1
An organic amine salt compound having the general formula (I): An-[Bm+]p. In the formula, An- is anions having -n valence serving as CO2 donors, wherein n = 1, 2, or 3; Bm+ is or contains: ammonium ions and/or organic amine B cations; m ...  
WO/2017/167705A1
A method for the manufacture of perfluorinated compounds is herein disclosed. In particular, the method is useful for the manufacture of perfluorooxyalkyl carboxylic acid salts which can be used as surfactants. The method envisages the f...  
WO/2017/160044A2
The present invention provides a catalyst composition containing an imidazolium halide and a zinc halide in an alkylene carbonate solvent, a method for preparing the catalyst composition, and a method for preparing an alkylene carbonate ...  
WO/2017/142028A1
A metal-supported macromolecule and a use thereof as a catalyst, said metal-supported macromolecule being obtained by causing a ligand to react with a zinc compound or a cobalt compound, said ligand having an imidazole group that is bond...  
WO/2017/125759A1
This invention relates to aprocess for the preparation of glycerolcarbonate from the reaction of glycerol and a dialkylcarbonate, for example dimethyl carbonate, or a cyclic alkylene carbonate. More specifically, the invention relates to...  
WO/2017/112625A1
A process for producing an oligomer comprising contacting a dialkyl carbonate and a dihydroxy compound in a reaction zone in the presence of an oligomerization catalyst under oligomerization conditions to form the oligomer wherein the mo...  
WO/2017/112622A1
A process for producing an oligomer comprising contacting a alkylaryl carbonate and a dihydroxy compound in a reaction zone in the presence of an oligomerization catalyst under oligomerization conditions to form the oligomer wherein the ...  
WO/2017/108672A1
The invention relates to a process for reactivating a used catalyst, wherein the used catalyst is a homogeneous catalyst comprising titanium, tin or lead and one or more ligands, which has been used in a process for preparing an aromatic...  
WO/2017/112627A1
A process for producing polycarbonate comprising: a) contacting a dialkyl carbonate with a dihydroxy compound in an oligomerization zone in the presence of an oligomerization catalyst under oligomerization conditions to form a first inte...  
WO/2017/104849A1
A bischloroformate composition characterized by being represented by general formula (1) and comprising a plurality of Ar components, and in that the average number of monomers (m1) obtained by the equation (Eq. 1) is 1.0 to 1.99 inclusi...  

Matches 1 - 50 out of 3,012