Class 554/144 - Plural hydrogenation steps or continuous hydrogenation process

Subclass of Class 554 - Organic compounds -- part of the class 532-570 series
Definition: Processes which include two or more hydrogenation steps
No. of patents: 27
Last issue date: 01/30/2007

Number	Title	Issue Date
7169430	Low trans-stereoisomer shortening systems Shortening systems are prepared which include hydrogenated edible oils that are hydrogenated in a manner to minimize the formation of trans-stereoisomers. A conditioned catalyst is used which disfavors trans-stereoisomer formation without significantly negatively im...	01/30/2007
6998366	Thin layer catalysts based on Raney alloys, and method for the production thereof Raney alloy catalysts applied to a support are described, said catalysts having an extremely thin layer of Raney alloy with a thickness of 0.01 to 100 μm. These catalysts are prepared by vapor deposition of the appropriate metals under reduced pressure. They are ge...	02/14/2006
6716155	Copper-chromium catalyzed hydrogenation of polyunsaturated oils A process for the hydrogenation of a polyunsaturated oil, wherein said oil is reacted with hydrogen in the presence of a copper-chromium containing catalyst at a temperature of from about 200 to 300° C. and a pressure of from about 300 to 500 psig, for 3-8 hours. T...	04/06/2004
6316646	Process for the continuous catalytic transformation of organic compounds A process for the continuous catalytic conversion of organic compounds, that, together with unwanted attendant materials, form a starting substance: first the organic compounds of the starting material are purposely extracted by means of condensed fluids....	11/13/2001
5962711	Hydrogenation of substrate and products manufactured according to the process A typical traditional reactor for hydrogenation consists of a tank filled with a liquid and a gas and a small particle catalyst. The reaction is carried out at high pressures and high temperatures. Lack of gas on the catalyst surface limits the velocity o...	10/05/1999
5734070	Hardening of unsaturated fats, fatty acids or fatty acid esters A process is disclosed for continuously hydrogenating unsaturated fats, fatty acids or fatty acid esters on a shaped catalyst in a solid bed. The reactants flow over the catalyst in the presence of a medium or solvent mixture in supercritical conditions. ...	03/31/1998
5693835	Fish oil having decreased fish odor and a method for preparing the same A method for preparing fish oil having decreased fish odor, which comprises slightly hydrogenating fish oil to have decrease rate of iodine value of 15% or less and decrease rate of highly unsaturated fatty acid of 33% or less. A method for preparing fish...	12/02/1997
5360920	Hydrogenation in a plate heat exchanger Fatty materials are hydrogenated in a plate heat exchanger at a pressure above about 150 psig. The use of high pressure and high shear as provided by the appropriate surface to volume ratio and pressure drop in the heat exchanger, enables the fatty materi...	11/01/1994
4973430	Continuous hydrogenation of unsaturated oils Improvements in determining and controlling a continuous hydrogenation process comprising the obtaining of viscosity operating curves and opacity operating curves for comparison to known hydrogen unsaturation curves and plasticity characteristics. With im...	11/27/1990
4960960	Hydrogenation process Hydrogen is supplied first to a last hydrogenation zone, and gases recovered from the last hydrogenation zone are passed to the first hydrogenation zone of a continuous multi-zone liquid phase process for hydrogenating an organic compound to a correspondi...	10/02/1990
4871485	Continuous hydrogenation of unsaturated oils Improvements in determining and controlling a continuous hydrogenation process comprising the obtaining of viscosity operating curves and opacity operating curves for comparison to known hydrogen unsaturation curves and plasticity characteristics. With im...	10/03/1989
4847016	Process for the continuous hydrogenation of fats, fatty acids and fatty acid derivatives in the presence of a heterogeneous catalyst For continuous heterogeneous hydrogenation, fats, fatty acids and/or fatty acid derivatives are brought into contact with hydrogen in the presence of a heterogeneous catalyst dispersed in a liquid phase in a tubular packed reactor, of which the length-to-...	07/11/1989
4626604	Hydrogenation process A continuous multi-stage hydrogenation process is described. This is effected in at least three catalytic stages connected in series. All stages up to and including the penultimate stage are operated adiabatically and in the vapor phase. Aldehyde (or other uns...	12/02/1986
4584139	Hydrogenation of long chain olefinic oils with Raney catalyst An improved monolithic hydrogenation catalyst and processes for using same to hydrogenate animal and vegetable oils, said catalyst being comprised of a Raney metal alloy surface layer integral with and derived from a selected nickel alloy monolithic subst...	04/22/1986
4547319	Selective reduction of edible fats and oils using phosphorus-modified nickel catalysts A supported, phosphorus-modified zerovalent nickel catalyst shows improved selectivity in the hydrogenation of fatty materials. The increased selectivity of this catalyst permits continuous reduction of fatty materials with a selectivity comparable to tha...	10/15/1985
4519951	Selective reduction of fatty materials using a supported group VIII metal in eggshell distribution Substantial improvement in the selectivity of reduction of fatty materials may be obtained using as a catalyst a zerovalent Group VIII metal dispersed in an eggshell distribution on a porous support. When the catalyst is nickel on gamma-alumina it is poss...	05/28/1985
4510092	Continuous reduction of edible oils A method of continuously hydrogenating fatty materials over a fixed catalyst bed utilizes zerovalent nickel on alpha-alumina. Partial hydrogenation of soybean oil to an IV of about 110 can be successfully performed using alpha-alumina of surface area less...	04/09/1985
4510091	Continuous reduction of edible oils Selective continuous hydrogenations of fatty materials are possible over a fixed bed of zerovalent nickel on an alpha-alumina support. The selectivity of such continuous hydrogenations is further enhanced by performing such hydrogenations in an upflow mod...	04/09/1985
4385001	Selective reduction of edible oils Edible oils may be selectively hydrogenated using a zerovalent, supported, catalytically active cobalt catalyst. Where the cobalt is supported on alumina, the selectivity of hydrogenation is virtually independent of the nature of the alumina. The process ...	05/24/1983
4353835	Process for hydrogenating unsaturated carboxylic acids and carboxylic acid esters A process for hydrogenating unsaturated carboxylic acids and esters of unsaturated carboxylic acids such as fatty acids which comprises reacting the unsaturated composition with hydrogen in contact with a catalyst prepared from a layered complex nickel si...	10/12/1982
4260643	Triglyceride compositions Non-fractionated triglyceride compositions characterized by a high ratio of trans mono-unsaturated acid to saturated fatty acids, a high ratio of trans acid to cis acid, and containing from 40-55% saturated fatty acids. These triglycerides exhibit unique ...	04/07/1981
4179454	Production of hydrogenated fatty acids from crude glyceride oils Hydrogenated fatty acids are produced by hydrogenating a crude glyceride oil and splitting the resulting hydrogenated crude glyceride oil into component hydrogenated fatty acid and glycerine....	12/18/1979
4169844	Hydrogenation of unrefined glyceride oils Unrefined or crude glyceride oil is hydrogenated in rapid fashion in the presence of nickel hydrogenation catalyst and of copper chromite adjunct catalyst. In a preferred embodiment of the invention, a nickel-only secondary hydrogenation stage follows for...	10/02/1979
4158666	Stearine production Glyceride oil is catalytically hydrogenated in rapid fashion to produce a stearine product....	06/19/1979
4158665	Hydrogenation of glyceride oils Glyceride oil contaminated with soap is hydrogenated in rapid fashion in the presence of nickel hydrogenation catalyst and of copper chromite adjunct catalyst, wherein the proportion of adjunct catalyst is adjusted broadly proportional to the soap concent...	06/19/1979
4134905	Trans acid restricted hard butters A non-fractionated, partially hydrogenated, non-lauric glyceride oil product suitable as a hard butter is made by hydrogenating the oil with copper-chromite catalyst to an Iodine Value of about 100-110 followed by hydrogenation with a conventional hydroge...	01/16/1979
3988329	Process for continuous catalytic hydrogenation A process for the continuous catalytic hydrogenation of materials in a flowable form are described. In the process the material to be hydrogenated and a hydrogenating agent in the presence of a hydrogenation catalyst are subjected to shearing forces and a...	10/26/1976

PatentStorm

Celebrity Inventors

PatentStorm News

Class 554/144 - Plural hydrogenation steps or continuous hydrogenation process