Class / Patent application number | Description | Number of patent applications / Date published |
560239000 | Preparing esters by dehydrogenation of alcohols | 10 |
20110152570 | METHODS FOR MAKING STERICALLY HINDERED ETHERS - The present invention relates to processes for the production of sterically hindered diol ethers and diacyl ethers of formula | 06-23-2011 |
20110245532 | METHANOL DEHYDROGENATION CATALYST FOR PRODUCING OF METHYL FORMATE AND METHOD FOR PRODUCING METHYL FORMATE - A methanol dehydrogenating catalyst used for production of methyl formate, which contains a copper-zinc-aluminum oxide, a phosphoric acid compound, and an alkali metal bromide, wherein the catalyst has high methyl formate selectivity and excellent durability and heat resistance; and a method of producing methyl formate by using the catalyst. | 10-06-2011 |
20120035390 | Ethyl acetate production - A process for the production of high purity ethyl acetate from ethanol is described. The process involves reacting ethanol over a suitable catalyst in a reactive distillation column. The reactive distillation setup allows overcoming the reaction equilibrium for increased conversion of ethanol. Hydrogen is removed as the distillate and ethyl acetate is obtained as a bottoms product from the reactive distillation column. A feed of hydrogen at the bottom of the column and a suitable hydrogenation catalyst placed at the bottom of the column allows for a significant reduction of impurities such as butan-2-one, butyraldehyde in the ethyl acetate product. Adding side reactors to the reactive distillation column allows additional catalyst holdup for improved reactant conversion. | 02-09-2012 |
20120178962 | Ethyl Acetate Production - A process for the production of high purity ethyl acetate from ethanol is described. The process involves reacting ethanol over a suitable catalyst in a reactive distillation column. The reactive distillation setup allows overcoming the reaction equilibrium for increased conversion of ethanol. Hydrogen is removed as the distillate and ethyl acetate is obtained as a bottoms product from the reactive distillation column. A feed of hydrogen at the bottom of the column and a suitable hydrogenation catalyst placed at the bottom of the column allows for a significant reduction of impurities such as butan-2-one and/or n-butyraldehyde in the ethyl acetate product. Adding side reactors to the reactive distillation column allows additional catalyst holdup for improved reactant conversion. | 07-12-2012 |
20130197266 | Ethyl Acetate Production - A reactive distillation method comprises introducing an feed stream comprising ethanol to a reactive distillation column, contacting the feed stream with a catalyst in the reactive distillation column during a distillation, where the feed stream reacts in the presence of the catalyst to produce a reaction product comprising ethyl acetate and hydrogen, removing ethyl acetate during the distillation from the reactive distillation column as a bottoms stream, and removing hydrogen during the distillation from the reactive distillation column as an overhead stream. | 08-01-2013 |
20130296603 | SYSTEM AND METHOD OF DEHYDROGENATIVE COUPLING - Dehydrogenative coupling can be achieved in nearly quantitative conversions and yields using a membrane reactor. | 11-07-2013 |
20140012037 | Ethyl Acetate Production - A method of purifying an ethyl acetate stream comprises contacting an inlet stream with a solvent, transferring at least a portion of the impurity compound from the inlet stream into the solvent to form an extract and a purified product, separating the extract from the purified product, separating the portion of the impurity compound from the extract, forming an impurities stream and a regenerated solvent, and recycling at least a portion of the regenerated solvent to contact the inlet stream. The inlet stream comprises ethyl acetate and an impurity compound, and the extract comprises the solvent and the portion of the impurity compound transferred from the inlet stream. | 01-09-2014 |
20140024854 | PROCESS FOR PREPARING CARBOXYLIC ACID ESTERS - The present invention relates to a process for preparing carboxylic acid esters, comprising the reaction of at least one primary monoalcohol or of a mixture of a primary monoalcohol and at least one alcohol different therefrom in the presence of a transition metal carbene complex catalyst K which has, as central atom M, at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC) and at least one monodentate N-heterocyclic carbene ligand, in the presence of a base, wherein the catalyst K is prepared by reacting a transition metal compound V which has at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC), but no carbene ligand, with an imidazolium salt in the presence of the primary monoalcohol and the base, the reaction being carried out without dilution. | 01-23-2014 |
20140235890 | Copper-Zirconia Catalyst and Method of use and Manufacture - Catalysts and methods for their manufacture and use for the dehydrogenation of alcohols are disclosed. The catalysts and methods utilize a highly dispersible alumina, for example, boehmite or pseudoboehmite, to form catalysts that exhibit high dehydrogenation activities. Specifically, the catalysts include Cu that is highly dispersed by reaction of an alumina formed by peptizing of boehmite or pseudoboehmite and precursors of ZrO2, ZnO and CuO. | 08-21-2014 |
20160194263 | Method for Producing N-Butane Derivatives | 07-07-2016 |