| Patents for C11B 13 - Recovery of fats, fatty oils, or fatty acids from waste materials (1,250) |
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| 08/22/1984 | EP0116114A2 Process for purifying fatty acids, naturally occurring fats and oils and fatty esters |
| 08/07/1984 | US4464305 Heating with acid in fatty acid melt |
| 07/10/1984 | CA1170653A1 Rendering processes |
| 06/19/1984 | US4455259 Process for recovering animal hair grease |
| 05/24/1984 | WO1984001884A1 Process for the production of fodder and fat from animal raw materials |
| 01/17/1984 | US4426322 Method and apparatus for the desalination of crude tall oil |
| 12/27/1983 | US4422966 Using ethylene in super critical state |
| 10/18/1983 | CA1155416A1 Process for distilling crude tall oil |
| 07/27/1983 | EP0084211A1 Process for recovering animal hair grease |
| 06/21/1983 | CA1148406A1 Rendering methods and systems |
| 11/30/1982 | US4361517 Continuous soap stock splitting |
| 11/23/1982 | US4360046 Sanitary waste grease disposal apparatus |
| 08/04/1982 | EP0056999A2 Method of treatment for separation of oil from oil-containing slurry waste |
| 06/29/1982 | US4337209 Process for the manufacture of soap |
| 05/18/1982 | US4330564 Fryer oil treatment composition and method |
| 08/25/1981 | US4285832 Solvent extraction of particles formed by mixing the clay, a binder, water, and a plastic clay and shaping |
| 08/11/1981 | US4283346 Alkali treatment under high temperature and pressure with neutralization |
| 06/02/1981 | CA1102297A1 Treatment of spent bleaching clay |
| 04/15/1981 | EP0026917A1 Improved rendering methods and systems |
| 03/31/1981 | US4259252 Rendering methods and systems |
| 03/31/1981 | US4259251 Treatment of effluent |
| 12/09/1980 | CA1091126A1 Continuous soapstock splitting |
| 09/03/1980 | EP0015116A1 Process for the production of fatty acid soaps from sludge by extraction and subsequent saponifying |
| 01/22/1980 | US4185026 Process for cleansing spent clay from the refining of glyceride esters |
| 05/15/1979 | US4154725 Terpolymer of acid, ester, and allyl alcohol |
| 04/24/1979 | US4151160 Process for the separation of unsaponifiable constituents from tall oil fatty acids |
| 03/20/1979 | CA1050967A1 Process for recovering high purity fatty acids and/or rosin acid and sterois |
| 01/16/1979 | CA1046422A1 Adsorption with auxiliary high loading step before elution |
| 11/21/1978 | US4126604 Treatment of tall oil fatty acids |
| 11/07/1978 | US4124502 Process for the purification of greasy and soiled water using a heavy solvent, and apparatus for its implementation |
| 10/24/1978 | CA1041233A1 Process for the dehydration of fatty sludge and the recovery of chemicals |
| 10/03/1978 | US4118407 Fatty acid recovery from soapstock |
| 08/29/1978 | US4110356 Recovery of domestic oil from spent clay |
| 07/11/1978 | US4100181 Acidulation, separation, distillation, saponification |
| 04/18/1978 | US4085000 Method of recovering tall-oil soap from kraft black liquor |
| 02/28/1978 | US4076700 Process for recovering high purity fatty acids and/or rosin acid and sterols |
| 01/10/1978 | CA1024163A1 Process for the preparation of fatty acids by acidification of soaps |
| 12/06/1977 | US4061568 Method for recovering and stabilizing fat and fatty substances as well as proteins and proteinous substances from process water |
| 09/20/1977 | US4049685 Process for cleansing spent clay |
| 09/06/1977 | US4046789 Process for the separation of waste products of the food industry |
| 05/10/1977 | US4022653 Process for separating soap from black liquor |
| 04/19/1977 | US4018805 Reaction with strong mineral acid |
| 02/08/1977 | US4007115 Process for treating spent monensic acid antibiotic fermentation broth containing relatively high concentrations of fatty and proteinaceous residues |
| 09/28/1976 | US3983147 Solvent extraction |
| 09/07/1976 | US3979287 Adsorption process |
| 08/10/1976 | US3974069 Acidification |
| 07/27/1976 | US3971306 System for manufacturing animal feed |
| 06/22/1976 | US3965085 Method for refining of soaps using solvent extraction |
| 06/08/1976 | US3962044 Heat treating excreta and products thereof |
| 01/06/1976 | US3931258 Recovery of sugar cane wax |