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WO/2009/072501A1 |
Disclosed is a novel method by which various carbonate compounds can be freely produced with high yield without using phosgene and without by-producing hydrogen chloride. Specifically disclosed is a method wherein a compound having a car...
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WO/2009/065352A1 |
An integrated coal-to-liquids process is provided to minimize carbon dioxide emissions and efficiently make use of carbon resources, by recovering carbon dioxide emissions from Coal-to-Liquids (CTL) facilities, using the recovered carbon...
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WO/2009/057773A1 |
Disclosed is an easily-handleable transesterification reaction catalyst which enables to obtain an alkyl ester as the object product with high yield without requiring a separate step for removing glycerin. Also disclosed are a method for...
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WO/2009/052996A1 |
The present invention relates to a catalyst for the synthesis of organic carbonates, the preparation of the catalyst and the application of this catalyst in the synthesis of organic carbonates from reacting urea and hydroxyl group contai...
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WO/2009/044707A1 |
Disclosed is a nitrotriazole derivative represented by the general formula (I) below. This nitrotriazole derivative is a compound useful as a synthesis reagent for synthesizing a carbamate, a carbonate and a thiocarbonate, which are usef...
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WO/2009/024451A1 |
The invention relates to a process for the preparation of a diaryl carbonate, which comprises: (i) contacting an aromatic non-hydroxy compound with a carboxylic acid of formula HOC (=O)R1 (I), wherein R1 is a hydrocarbyl group, and with ...
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WO/2008/110908A9 |
The present invention concerns a method for preparing hydroxytyrosol derivatives of general formula (III), where R=OCH3, or CF3 or an alkylic saturated or unsaturated, straight or cyclic, branched or not branched, chain from 1 to 31 carb...
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WO/2009/000397A1 |
The invention relates to an improved process for preparing benzyl pentahydroxyhexylcarbamoylundecanoate. Benzyl pentahydroxyhexylcarbamoyl-undecanoate has the formula (I).
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WO/2008/145940A2 |
The invention relates to a joint method of producing fatty nitriles and/or amines and dialkyl carbonates of formula R1O-CO-OR1 in which R1 comprises from 1 to 4 carbon atoms, starting from an ester of a saturated or unsaturated fatty aci...
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WO/2008/139080A1 |
The invention relates to a conjugated method for the production of ω-amino-alkanoic acids and dialkylcarbonates having formula R1O-CO-OR1,in which R1 has between 1 and 4 carbon atoms, from an unsaturated fatty acid ester, comprising the...
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WO/2008/141027A2 |
A catalyst for the epoxidation of an olefin comprising a carrier and, deposited on the carrier, silver, a rhenium promoter, a first co-promoter, and a second co-promoter; wherein the quantity of the rhenium promoter deposited on the carr...
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WO/2008/114750A1 |
Disclosed is a method for continuously producing a diaryl carbonate having excellent safety by using a reaction column. Specifically disclosed is a method for continuously producing a diaryl carbonate by supplying an aromatic hydroxy com...
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WO/2008/099370A2 |
A method of forming a dialkyl carbonate stream, includes obtaining a byproduct stream from a diaryl carbonate formation reaction that has alkanol, residual dialkyl carbonate, and residual aromatic compound. This byproduct stream is intro...
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WO/2008/099369A2 |
The present invention provides methods of forming dialkyl carbonate wherein catalyst buildup in the reaction equipment, the separation equipment, and transfer lines there between is reduced and even eliminated. In one embodiment, the met...
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WO/2008/090107A1 |
Diaryl carbonate is prepared by reaction of an aromatic alcohol with a dialkyl carbonate, which dialkyl carbonate has been prepared by the reaction of an alkanol and an alkylene carbonate, which process comprises the following steps : (a...
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WO/2008/090106A1 |
The invention relates to a process for the preparation of a diaryl carbonate by transesterification of an aromatic alcohol with a dialkyl carbonate in the presence of a transesterification catalyst during a period of time [ta], in which ...
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WO/2008/090108A1 |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) reacting an alkylene carbonate and an alkanol feedstock into a reaction zone under transesterification conditions to obtain a product mixture of dialkyl carb...
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WO/2008/090109A1 |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) reacting an alkylene carbonate and an alkanol feedstock into a first reaction zone under transesterification conditions to obtain a product mixture of dialky...
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WO/2008/084086A1 |
The present invention relates to a method for the production of o-vinylcarbamates or vinylcarbonates, wherein a secondary amine or an alcohol is reacted with an alkyne compound in the presence of a catalyst selected from among carbonyl c...
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WO/2008/080832A2 |
The present invention relates to the use of a preferably transition metal-free carbonitride as a catalyst, and to a supported catalyst comprising the said carbonitride. The carbonitride catalysts proved effective in the cyclization of or...
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WO2007114130A9 |
A mixture for use in carbon dioxide gas recovery/utilization and transportation. The mixture comprises: an alkyltin alkoxide composition containing an alkyltin alkoxide combined with carbon dioxide; and carbon dioxide. The ingredients ar...
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WO/2007/143319A1 |
An improved method for the preparation of ester-substituted diaryl carbonates prepared by reacting phosgene with recycle streams of ester-substituted phenols from reaction processes using a tetraalkyl ammonium hydroxide catalyst, a tetra...
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WO/2007/140908A1 |
The present invention relates to a process for preparing α-fluorinated esters from α-hydroxy esters by reaction with a dihalocarbonyl compound (or an equivalent) to give haloformates and further to give fluoroformates, which are then d...
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WO/2007/134710A1 |
Finely divided solids are outstandingly suitable as stabilizers for dicarbonic diesters, the mixtures thus obtained being usable for preserving industrial materials and foods.
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WO/2007/121857A1 |
Dicarbonate diesters can be stabilized over a prolonged period in relation to thermal and chemical decomposition by using phosphorus compounds. Mixtures of dicarbonate diesters and phosphorus compounds are excellent food preservatives.
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WO/2007/121859A1 |
Dicarbonate diesters can be stabilized over a prolonged period in relation to thermal and chemical decomposition by using protonic acids. Mixtures of dicarbonate diesters and protonic acids are excellent food preservatives.
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WO/2007/104730A1 |
An alkylene carbonate is produced by the reaction of an alkylene oxide with carbon dioxide in the presence of a phosphonium catalyst in a process in which (a) the alkylene oxide, carbon dioxide and the phosphonium catalyst are continuous...
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WO/2007/096346A1 |
A process for the preparation of an alkanediol and a dialkyl carbonate is provided, which process comprises: (a) contacting an alkylene carbonate with an alkanol feedstock under transesterification conditions in a reactive distillation c...
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WO/2007/096342A1 |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) contacting an alkylene carbonate with an alkanol feedstock under transesterification conditions in a reactive distillation zone to obtain a top stream compri...
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WO/2007/097388A1 |
An alkyl tin alkoxide catalyst composition used in the production of a carbonate ester has such a problem that the composition undergoes a thermal modification by heating during the production process and converted into an alkyl tin alko...
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WO/2007/096343A1 |
An alkylene carbonate and an alkanol are subjected to transesterification to yield a dialkyl carbonate and alkanediol in a process comprising (a) the alkylene carbonate and an alkanol feedstock are introduced into a reaction zone to reac...
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WO2006044575A9 |
A method for preparing an aliphatic chloroformate comprising, introducing a mixture of at least one aliphatic hydroxyl compound, phosgene, at least one solvent, and optionally at least one organic base into a flow reactor to obtain a uni...
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WO/2007/088782A1 |
Disclosed is an apparatus or process for production of a highly pure diol in an industrial scale using a cyclic carbonate and an aliphatic monohydric alcohol as starting materials. More specifically, disclosed is an industrial apparatus ...
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WO/2007/088767A1 |
Disclosed is an apparatus or process for production of a highly pure diol in an industrial scale using a cyclic carbonate and an aliphatic monohydric alcohol as starting materials. More specifically, disclosed is an industrial apparatus ...
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WO/2007/086326A1 |
The invention relates to specific equipment and a specific process by which a diol can be stably produced on a scale of at least one ton per hour over a long period (of 1000 hours or longer). The process comprises feeding a raw material ...
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WO/2007/080805A1 |
The invention relates to specific equipment and a specific process by which a high-purity diol can be stably produced on a scale of at least one ton per hour over a long period (of 1000 hours or longer). The process comprises feeding a r...
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WO/2007/074664A1 |
The invention aims at providing a specific apparatus and process by which a low-boiling reaction mixture that is produced by a reaction-distillation process of continuously feeding a raw material consisting of a cyclic carbonate and an a...
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WO/2007/074692A1 |
The invention aims at providing a specific process for mass production of dialkyl carbonate and diol by a reaction -distillation process of feeding a raw material consisting of a cyclic carbonate and an aliphatic monohydric alcohol conti...
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WO/2007/072705A1 |
The invention aims at providing a specific process for producing high-purity diphenyl carbonate, which is necessary in producing high-quality and high-performance aromatic polycarbonates, from cyclic carbonates and phenol stably on an in...
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WO/2007/072728A1 |
The object is to provide a specific process for production of a dialkyl carbonate and a diol using a cyclic carbonate and a monohydric aliphatic alcohol as raw materials, by a reaction distillation method in which the raw materials are f...
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WO/2007/069514A1 |
The object is to provide a specific process for production of an aromatic carbonate from a dialkyl carbonate containing specific amounts of an alcohol and an aromatic carbonate and an aromatic monohydroxy compound using a continuous mult...
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WO/2007/069513A1 |
The object is to provide a specific process for production of a dialkyl carbonate and a diol using a cyclic carbonate and a monohydric aliphatic alcohol as raw materials, by a reaction distillation method in which the raw materials are f...
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WO/2007/069463A1 |
A practical process for stable production of a high quality/high performance aromatic polycarbonate not stained and having excellent mechanical properties from a dialkyl carbonate and an aromatic dihydroxy compound on an industrial scale...
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WO/2007/069462A1 |
The object is to provide a specific process for production of a dialkyl carbonate and a diol using a cyclic carbonate and a monohydric aliphatic alcohol as raw materials, by a reaction distillation method in which the raw materials are f...
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WO/2007/069529A1 |
The invention aims at providing a specific process for producing high-purity diaryl carbonates, which are necessary in producing high-quality and high-performance aromatic polycarbonates, from cyclic carbonates and aromatic monohydroxyl ...
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WO/2007/069531A1 |
The invention aims at providing a specific process for producing aromatic carbonates, which are necessary in producing high-quality and high-performance aromatic polycarbonates, form cyclic carbonates and aromatic monohydroxyl compounds ...
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WO/2007/063757A1 |
Disclosed is a specific process for producing a high-quality/high-performance aromatic polycarbonate free from discoloration and having excellent mechanical properties from a dialkyl carbonate and an aromatic dihydroxy compound stably, i...
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WO/2007/060894A1 |
The invention aims at providing a concrete process for producing a dialkyl carbonate and a diol stably on an industrial scale of 2 tons or above and 1.3 tons or above respectively per hour with high selectivity and high productivity over...
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WO/2007/060893A1 |
The invention aims at providing a concrete process for producing a dialkyl carbonate and a diol stably on an industrial scale of 2 tons or above and 1.3 tons or above respectively per hour with high selectivity and high productivity over...
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WO/2007/050030A1 |
There is disclosed a method for manufacturing fatty acid alkyl esters from tall oil comprising the steps of a) esterifying tall oil in at least one esterification reactor in the presence of an acidic catalyst and an C1 to C8 alcohol to f...
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