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| Number | Title | Issue Date |
| 7365219 | Solid phase extraction method for obtaining high-purity unsaturated compounds or derivatives of said compounds The invention relates to a novel extraction method for obtaining at least one unsaturated, optionally derivatized compound, from mixtures of said compounds with other less saturated constituents, e.g. for obtaining polyunsaturated fatty acids or the derivatives ther... | 04/29/2008 |
| 6437159 | Fluorinated alkanoic acid purification process A process that can be used for isolating a fluorinated alkanoic acid from an aqueous solution also containing inorganic fluorides is provided. This process comprises (A) acidifying an aqueous solution comprising an ammonium or metal salt of a fluorinated ... | 08/20/2002 |
| 5981453 | Process for the preparation of tenside mixtures Process for the preparation of a tenside mixture, wherein a starting mixture containing an alkali metal salt of an alkyl sulfonic acid is treated with a concentrated sulfuric acid solution in an amount in excess of the amount needed for converting the sal... | 11/09/1999 |
| 5723673 | Process for preparing amides of N-alkyl polyhydroxyalkyls N-alkyl polyhydroxy alkyl amines such as N-methyl glucamine having a Gardner Color of less than 1 are reacted with sources of fatty acyl groups such as methyl esters, anhydrides, and/or fatty acids that have greater than 98% transmittance at 460 nm in org... | 03/03/1998 |
| 5606104 | Process for the preparation of acyloxybenzenesulfonic acid or salt thereof In preparing an acyloxybenzenesulfonic acid or salts thereof by sulfonating the corresponding acyloxybenzene (1), the preparation process of the acyloxybenzenesulfonic acid wherein as an additive is added at least one selected from among carboxylic acids ... | 02/25/1997 |
| 5571934 | Process for preparing solutions of polyhydroxy-fatty acid amides having good color quality, and their use Process for preparing solutions of polyhydroxy-fatty acid amides having good color quality In the process described, at least one sulfur compound from the group of dithionous acid is added in an active amount to the crude solutions, which are in general m... | 11/05/1996 |
| 5210240 | Process for the extraction of oil containing vegetable materials A process for the extraction of oils from oil-containing solid vegetable material by means of compressed gases, wherein said vegetable material is extracted with a mixture consisting of a supercritical gas and a subcritical entraining agent selected from ... | 05/11/1993 |
| 4973431 | Process for the recovery of methyl-branched, saturated C14 -C24 - f A process for the isolation and purification of essentially fatty acid mixtures, which in addition to the methyl branched fatty acids contain saturated and unsaturated, respectively straight chain as well as methyl branched, unsaturated fatty acids, in wh... | 11/27/1990 |
| 4781864 | Process for the removal of chlorophyll, color bodies and phospholipids from glyceride oils using acid-treated silica adsorbents Phospholipids and/or chlorophyll and other color bodies are removed from glyderide oil by contacting the oil with an acid-treated amorphous silica adsorbent comprising a high surface area amorphous silica on which is supported an acid having a pKa | 11/01/1988 |
| 4533501 | Refining Lipids, especially crude glyceride oils and phosphatides, are refined by contact under superatmospheric pressure with ultrafiltration membrane, preferably in a miscella in a solvent permeable to the membrane. An additive solute is introduced into the lipi... | 08/06/1985 |
| 4523027 | Purification of carboxylates containing aldehydes, acetals and/or unsaturated compounds Carboxylates which contain aldehydes, acetals and/or unsaturated compounds and are obtained by reacting an olefinically unsaturated compound with carbon monoxide and an alkanol are purified by a process wherein the said carboxylates are treated with hydro... | 06/11/1985 |
| 4305882 | Partial argentation resin chromatography for separation of polyunsaturated fatty esters Mixtures containing polyunsaturated fatty esters are fractionated by partial argentation resin chromatography, in which the mixture is eluted through a column packed with a partially silvered sulfonic acid ion exchange resin.... | 12/15/1981 |
| 4297292 | Fractionation of triglyceride mixtures Triglyceride mixture is fractionated to obtain product(s) of Iodine Value different from that of such mixture utilizing particular resin adsorbent and particular solvent.... | 10/27/1981 |
| 4189442 | Separation of fatty acid esters Fatty acid ester mixture is separated according to degree of unsaturation utilizing particular resin adsorbent and particular solvent.... | 02/19/1980 |
| 4143066 | Separation and recovery of carboxylic acids from water A lower carboxylic acid such as acetic acid is separated and recovered from an aqueous medium by the steps which include contacting, in an extraction zone, the aqueous medium with an extracting agent such as trioctyl phosphine oxide dissolved in an organi... | 03/06/1979 |
| 4125549 | Process for the manufacture of cosmetic quality isooctyl neodecanoate Cosmetic quality isooctyl neodecanoate is manufactured by contacting an alcohol mixture containing a major amount of isooctyl alcohol with neodecanoic acid in the presence of an acid catalyst and at a temperature of from about 160° C. to about 230° C. t... | 11/14/1978 |
| 4062882 | Process for refining crude glyceride oils by membrane filtration Crude glyceride oils are refined by membrane filtration under pressure in solutions in organic solvents, particularly to separate phosphatides, which may also be refined according to the invention. The solvents are non-acidic, non-hydroxy solvents, e.g., ... | 12/13/1977 |
| 4049681 | Processes for the separation of potassium salts of perfluoroalkanoic acids from aqueous solutions thereof Processes for the separation of a potassium salt of a perfluoroalkanoic acid having at least 1 and at most 12 carbon atoms per molecule or a mixture of potassium salts of a homologous mixture of the said perfluoroalkanoic acids from an aqueous solution th... | 09/20/1977 |
| 4049687 | Process for the separation of triglycerides in an aqueous system A process for the separation, using an aqueous system, of liquid and solid triglycerides is improved by using an oil-soluble surface active agent, particularly an unsaturated C12-28 monoglyceride, and a water-soluble surface-active agent, parti... | 09/20/1977 |
| 4010183 | Anhydrous solvent separation in production of polyol monoacylates Crystallizable C3 polyol monoacylates are separated from a mixture thereof with related polyol polyacylates by solvent fractionation of such mixture. The separated C3 polyol monoacylates are melted and subjected to a stripping operat... | 03/01/1977 |
| 3994943 | Dewaxing of vegetable oils Crude vegetable oil is dewaxed by admixture with a mixture of surfactants comprising an aqueous solution of less than 100 ppm of a sulfosuccinate alkyl ester such as dioctyl sodium sulfosuccinate and 0.01 to 0.5% of a fatty acid sulfate such as sodium lau... | 11/30/1976 |
| 3956351 | Process for separating fatty mixtures A method for separating mixtures of fatty substances into components with different melting points in which a fatty substance suspension separated from a liquid fat portion is transformed by heating to temperatures between the melting point of the solid p... | 05/11/1976 |
| 3953485 | Continuous process for the separation of mixtures of fatty substances of different melting points The invention relates to an improvement of the known continuous process for the separation of mixtures of fatty substances of different melting points, in which the starting mixture by treating with an aqueous wetting agent solution is converted to a disp... | 04/27/1976 |
| 3950365 | Method for purification of fatty acid mixtures A method for the purification of mixtures of fatty acids or fatty acid esters containing polyunsaturated components by heating the mixture in the presence of an organic macroporous, acid ion exchange resin having a specific surface area of at least 35 m | 04/13/1976 |
| 3950371 | Method of separating mixtures of fatty substances A method for separating fatty substance mixtures into components of different melting points by the "Rewetting or Hydrophilization Process," with the heat removal necessary for cooling and crystallizing higher melting fatty substance fractions being obtai... | 04/13/1976 |
