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| Number | Title | Issue Date |
| 7358296 | Aqueous dispersions of fluoropolymers Fluorine-containing emulsifiers can be removed from fluoropolymer dispersions by adding to the dispersion a non ionic emulsifier, removing the fluorine-containing emulsifier by contact with an anion exchanger and separating the dispersion from the anion exchanger. T... | 04/15/2008 |
| 7145026 | Continuous transesterification process A process for converting at least one triglyceride feedstock to at least one fatty-acid methyl ester product is disclosed. The process includes a continuous, plug-flow environment with a single-pass residence time as low as about 10 seconds, and a conversion of at l... | 12/05/2006 |
| 7128840 | Ultrasound enhanced process for extracting metal species in supercritical fluids Improved methods for the extraction or dissolution of metals, metalloids or their oxides, especially lanthanides, actinides, uranium or their oxides, into supercritical solvents containing an extractant are disclosed. The disclosed embodiments specifically include e... | 10/31/2006 |
| 7011696 | Elimination process of fluorinated anionic surfactants An elimination process of fluorinated anionic sufactants from exhausted gaseous streams, wherein the gaseous stream is put into contact with aqueous solutions having in the range from 3.5 to 13.8, the aqueous solution density being lower than 1.05 g/cm3, ... | 03/14/2006 |
| 6579996 | Process for removing free fatty acids from fats and oils of biological origin or their steam distillates A method for removing free fatty acids from fats or oils of biological origin or their steam distillates by extracting the free fatty acids with a mixture of basic organic nitrogen compounds and water as an extraction medium at a temperature below the boi... | 06/17/2003 |
| 6528669 | Recovery of polyunsaturated fatty acids from urea adducts Polyunsaturated fatty acids, as free fatty acids, fatty acid esters or fatty acid amides, especially EPA and/or DHA, DPC 9/02, are recovered from urea adducts, such as obtained as by-products in the processing of fish and other oils, by treatment with a s... | 03/04/2003 |
| 6316668 | Acid sorption regeneration process using carbon dioxide Carboxylic acids are sorbed from aqueous feedstocks onto a solid adsorbent in the presence of carbon dioxide under pressure. The acids are freed from the sorbent phase by a suitable regeneration method, one of which is treating them with an organic alkyla... | 11/13/2001 |
| 6042697 | Separation of 9,11-Diene C18 fatty acid from 10,12-Diene C18 fatty acid by azeotropic distillation 9,11- Diene C18 fatty acid cannot be separated from 10,12-Diene C18 fatty acid by conventional rectification because of the proximity of their boiling points. 9,11-Diene C18 fatty acid can be readily separated from 10,12-Diene fatty acid by azeotropic dis... | 03/28/2000 |
| 6015915 | Process for degumming a fatty substance and fatty substance thus obtained Process for degumming a fatty substance such as a crude or delecithinated, animal or vegetable oil or fat, including bringing this fatty substance into contact with an aqueous solution of a complexing agent and of a detergent and/or emulsifier making it p... | 01/18/2000 |
| 5844111 | Method for purifying an inert gas while preparing lower alkyl esters A process for purifying an inert gas stream from a transesterification reaction wherein a lower alkyl alcohol is released during the reaction is claimed. A second use of the process is to make a lower alkyl, e.g., methyl, esters of fatty acids through a t... | 12/01/1998 |
| 5679809 | Concentrate of polyunsaturated fatty acid ethyl esters and preparation thereof A composition concentrated in ethyl esters of polyunsaturated fatty acids is prepared by mixing a refined oil rich in polyunsaturated fatty acids with ethanol in the presence of a catalyst to obtain an ethanolyzate containing a glycerol phase and fatty ac... | 10/21/1997 |
| 5637338 | Modification of edible oil flavor A useful method for shifting the flavour balance of edible oils comprises sparging nitrogen through the oil at a temperature of 20°-65° C. Olive oil is preferably treated at 30°-40° C. The treatment may be combined with usual purification steps a... | 06/10/1997 |
| 5621125 | Fractionation of triglyceride oils utilizing ceramide-base crystallization modifiers A triglyceride oil containing a membrane lipid in a concentration effective for crystallization modification the membrane lipid having a formula: C13 H27 --CH.dbd.CH--CH(OH)--CH(NHCOA2)--CH2--OA4, wherein C13 H... | 04/15/1997 |
| 5412126 | Carboxylic acid sorption regeneration process Carboxylic acids are sorbed from aqueous feedstocks into an organic liquid phase or onto a solid adsorbent. The acids are freed from the sorbent phase by treating it with aqueous alkylamine thus forming an alkylammonium carboxylate which is dewatered and ... | 05/02/1995 |
| 5401866 | Method of recovering waste heat from edible oil deodorizer and improving product stability The invention relates to a process for recovering heat from deodorized edible oils and stabilizing the same comprising: introducing or injecting non-condensible inert gas into hot deodorized edible oil as the hot deodorized edible oil is cooled by indirec... | 03/28/1995 |
| 5362895 | Method of recovering unsaturated fatty acids A method for recovering at least one unsaturated fatty acid having sixteen or more carbon atoms and/or at least one compound of such a fatty acid from a mixture derived from vegetable, animal or marine sources is provided. Fatty acids and/or fatty acid co... | 11/08/1994 |
| 5347023 | Process for treating fatty acids A mixture of branched fatty acids containing 18 carbon atoms such as commercial iso-stearic acid is treated to lower the freezing point to below -10° C., by mixing with urea and a lower alcohol, such as methanol, and filtering. The product is useful in t... | 09/13/1994 |
| 5315020 | Method of recovering waste heat from edible oil deodorizer and improving product stability The invention relates to a process for recovering heat from deodorized edible oils and stabilizing the same comprising: introducing or injecting non-condensible inert gas into hot deodorized edible oil as the hot deodorized edible oil is cooled by indirec... | 05/24/1994 |
| 5290959 | Mass separation of materials An extraction process comprising contracting a material to be extracted with an extracting fluid at elevated pressure within a defined space, and separating the extracted fluid and extract as a mass, from the extracted material while reducing the volume o... | 03/01/1994 |
| 5138075 | Extractive separation method The present invention provides an extractive separation method in which a solute contained in a medium can be efficiently extracted and separated with a lower consumption of energy under the remarkably gentle operating conditions. This method consists in ... | 08/11/1992 |
| 5110509 | Process for the recovery of monoglycerides and diglycerides from a mixture containing monoglycerides, diglycerides, and triglycerides Described is a process for the recovery of monoglycerides and diglycerides from a mixture containing monoglycerides, diglycerides and triglycerides by extraction with a supercritical extractant which comprises specific cosolvents. After the separation of ... | 05/05/1992 |
| 5013443 | Extraction and separation method and apparatus using supercritical fluid Extraction and separation method and apparatus using a supercritical fluid for extracting a specified component from a sample by a supercritical fluid and introducing the supercritical fluid containing the extracted component into a silica gel column coat... | 05/07/1991 |
| 4915876 | Process for the deodorization and stabilization of polyunsaturated oils Disclosed are novel deodorization processes to realize highly polyunsaturated oils of enhanced stability. The novel deodorization has particular suitability for processing fish oils and soybean oil. The process involves use of mild solutions of acids and/... | 04/10/1990 |
| 4761505 | Process for recovery of alcohols from sulfuric acid streams According to the process of the present invention, carboxylic acids are recovered from aqueous strong acid mixtures thereof which mixtures are formed as an alcohol-depleted phase by the extraction of alcohols from aqueous strong acid solution with carboxy... | 08/02/1988 |
| 4601856 | Method of purifying oleic acid A method of producing a highly purified oleic acid is disclosed, which comprises the steps of: (a) separating and removing the resulting precipitated crystal after the cooling of a solution of oleic acid containing fatty acid mixture and urea in an organi... | 07/22/1986 |
| 4569796 | Process for refining triglyceride oils Process for refining a triglyceride oil comprising bringing the oil into contact with at least an amount of aqueous alkali solution equal to the stoichiometric amount required to neutralize the oil, forming a soapstock and separating said soapstock and oi... | 02/11/1986 |
| 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 |
| 4460504 | Solvent extraction of oil bearing seeds This invention relates to a process for the extraction of oilseeds and oilseed materials with two mutually immiscible solvents, the first solvent comprising a lower alkanol containing dissolved ammonia, and the second solvent comprising a lower alkane or ... | 07/17/1984 |
| 4323514 | Coffee oil A process for improving coffee oil characterised in that the coffee oil is contacted, under conditions of agitation, with a solution of a strong mineral acid in a monohydric aliphatic alcohol containing from 1 to 3 carbon atoms and separating the oil laye... | 04/06/1982 |
| 4175053 | Base reactant Alkyl nitriles in combination with alkali metal hydroxides provide super bases which are useful in various chemical processes.... | 11/20/1979 |
| 4151160 | Process for the separation of unsaponifiable constituents from tall oil fatty acids The unsaponifiable constituents and fatty acids contained in tall oil are separated by a process in which the fatty acids are converted into low melting soaps which are soluble in the unsaponifiable constituents and such constituents then distilled from a... | 04/24/1979 |
| 4129583 | Process for separating crystallizable fractions from mixtures thereof In a continuous process for separating crystallizable organic components from mixtures thereof in solution, a feedstock of such components is mixed with at least one solvent therefor and the resulting feedstock mixture is continuously fed into a vessel in... | 12/12/1978 |
| 4129516 | Energy saving detergent manufacture Soaps with low water content are prepared in an alkyl nitrile reaction medium and used to adjust the total water content of an aqueous crutcher mix to an intermediate moisture level without heat input.... | 12/12/1978 |
| 4129520 | Soap making Alkali metal salts of organic acids are prepared by saponifying the corresponding organic acid ester with an alkali metal hydroxide in a liquid reaction medium comprising a substantially water-free alkyl nitrile.... | 12/12/1978 |
| 4097507 | Process for separating straight and branched chain soaps and their acids The present invention relates to a process for separating straight and branched chain soaps and their acids comprising adding to a solution of said soaps a water-soluble lithium compound in at least an amount stoichiometrically sufficient to convert the s... | 06/27/1978 |
| 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 |
| 4035402 | Dewaxing process for vegetable oils This invention relates to an improved process for dewaxing vegetable oils containing free fatty acid impurities, wax and other insoluble matter, which comprises: chilling a refined and water-washed or filtered vegetable oil, mixing the chilled vegetable o... | 07/12/1977 |
| 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 |
