| Patents for C11B 13 - Recovery of fats, fatty oils, or fatty acids from waste materials (1,250) |
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| 06/30/1999 | EP0926229A1 Method and apparatus for drying fat or oil containing substances |
| 06/24/1999 | DE19806208C1 None given |
| 06/17/1999 | WO1999029813A1 Method for preparing tall oil |
| 06/16/1999 | EP0827528B1 Neutralization of tall oil soap |
| 05/12/1999 | EP0915149A1 Process for concentrating viscous products by admixing hot liquid |
| 05/12/1999 | EP0914329A2 Method of manufacturing an ester mixture |
| 05/06/1999 | EP0912665A1 Process for obtaining oryzanol |
| 05/04/1999 | CA2056836C Production of tall oil |
| 04/27/1999 | US5898065 After the neutralization with carbon dioxide but before the water separation step, the ph is adjusted with an acidically reacting substance, such as bisulfite. |
| 04/07/1999 | EP0906380A1 Method for dewatering and purifying oil or fat |
| 04/06/1999 | US5891990 Treatment of tall oil soap |
| 02/03/1999 | EP0894517A1 Process for the industrial recovery of oleanolic and maslinic acids contained in the olive milling subproducts |
| 01/27/1999 | EP0748366B1 Treatment of tall oil soap |
| 12/01/1998 | CA2115009C Process for preparing oil sorbent and device for continuously preparing the same |
| 07/09/1998 | WO1998029524A1 Process and apparatus for the cleaning of crude tall oil soap |
| 07/09/1998 | CA2275689A1 Process and apparatus for the cleaning of crude tall oil soap |
| 06/17/1998 | CN1184846A Process for extracting edible oil from bottoms |
| 05/20/1998 | CN1038427C One-step process for extracting fatty oil and teasaponin from waste mateer of cake |
| 04/14/1998 | US5738003 Counter current diffusion extractor |
| 04/02/1998 | WO1998001126A3 Method of manufacturing a sterol ester mixture |
| 03/11/1998 | EP0827528A1 Neutralization of tall oil soap |
| 03/04/1998 | EP0670000B1 Method for acidification of soap with sodium bisulphite solution |
| 02/10/1998 | CA2064584C Cooking oil filter |
| 02/05/1998 | WO1998004331A1 Process for the industrial recovery of oleanolic and maslinic acids contained in the olive milling subproducts |
| 02/05/1998 | CA2232692A1 Process for the industrial recovery of oleanolic and maslinic acids contained in the olive milling subproducts |
| 01/15/1998 | WO1998001519A1 Process for obtaining oryzanol |
| 01/15/1998 | WO1998001126A2 Method of manufacturing a sterol ester mixture |
| 01/15/1998 | CA2259009A1 Method of manufacturing an ester mixture |
| 12/10/1997 | EP0584305B1 Method for purifying a non-electrically conductive liquid |
| 11/05/1997 | EP0735826A4 Counter current diffusion extractor |
| 10/30/1997 | WO1997040123A1 Method for dewatering and purifying oil or fat |
| 09/23/1997 | US5670678 Solvent extraction using low molecular weight hydrocarbon |
| 08/07/1997 | WO1997028089A1 Method of extraction of olive paste from vegetable water and its use as a foodstuff |
| 07/01/1997 | CA2074232C Color of tall oil fractions by treating soap skimmings |
| 06/25/1997 | EP0592622B1 Extension of edible oil lifetime using activated carbons |
| 06/11/1997 | EP0748167A4 Method of making meat products and products thereby |
| 06/11/1997 | CN1151433A Method of synthesizing mixed methyl aliphatic ester using cotton seed oil soap bottoms as raw material |
| 03/26/1997 | CN1034346C Process of abstracting tea oil and saponin from tea-oil seed (and tea seed) dregs |
| 03/19/1997 | CN1145632A Treatment of tall oil soap |
| 03/04/1997 | CA2077067C Process for regenerating spent bleaching earth |
| 12/18/1996 | EP0748366A1 Treatment of tall oil soap |
| 12/18/1996 | EP0748167A1 Method of making meat products and products thereby |
| 12/17/1996 | US5585319 Process for preparing oil sorbent and device for continuously preparing the same |
| 11/07/1996 | WO1996034932A1 Neutralization of tall oil soap |
| 11/06/1996 | CN2239433Y Plant forreclaiming bottom oil from relic soap of plant oil refinery |
| 10/30/1996 | CN2238838Y Physical purifier for vegetable oil |
| 10/09/1996 | EP0735826A1 Counter current diffusion extractor |
| 09/18/1996 | EP0731830A1 Purification of oil |
| 08/14/1996 | CN1128793A Prodn. technology for extracting fine sasanquasaponin by super filtration film method |
| 06/26/1996 | EP0718397A2 Procedure for the purification and development of liquid and solid waste product produced by oil mill |
| 04/10/1996 | EP0705323A1 Method for obtaining improved-purity fat derivatives from aqueous emulsions or dispersions |
| 01/30/1996 | US5487907 Process to recover oil from crumbs, food particles and carbohydrate matrices |
| 12/06/1995 | CN1030433C Equipment for separating oil obtd. from oil foot |
| 11/22/1995 | EP0682965A1 Process and installation for the treatment and utilisation of fatty wastes |
| 10/11/1995 | EP0468044B1 Method of frying oil treatment using an alumina and amorphous silica composition |
| 10/03/1995 | US5455328 Method for acidification of soap with sodium bisulphite solution |
| 09/12/1995 | US5449771 Method for recovering cyclodextrin |
| 09/08/1995 | WO1995023837A1 Treatment of tall oil soap |
| 09/08/1995 | WO1995023525A1 Method of making meat products and products thereby |
| 09/08/1995 | CA2184614A1 Method of making meat products and products thereby |
| 09/06/1995 | EP0670000A1 Method for acidification of soap with sodium bisulphite solution |
| 08/24/1995 | WO1995022387A1 Method of gelatin recovery and purification from encapsulation process |
| 08/23/1995 | CN1029563C Animal fat waste greasy dirt treatment and recovery method in thin plate production |
| 06/13/1995 | US5424466 Improved process for the production of esters from fatty substances having a natural origin |
| 06/01/1995 | WO1995014752A1 Purification of oil |
| 04/06/1995 | DE4340109C1 Process for working up mixtures of metals and soaps |
| 03/29/1995 | CN1028035C Method for extracting oil salted-out P-leftover in plant oil refinery |
| 03/09/1995 | DE4330275A1 Process for the utilisation of used acid-activated bentonite containing saponifiable constituents |
| 03/09/1995 | DE4329187A1 Process for the recycling of wastes containing wax |
| 03/01/1995 | EP0486616B1 Cooking oil filter |
| 02/21/1995 | US5391385 Heating with filter aid, purifying, separating filter aid |
| 01/24/1995 | US5384149 Integrated process for producing meat protein, broth, myoglobin pigment, fat and bone meal |
| 01/05/1995 | WO1995000610A1 Method for obtaining improved-purity fat derivatives from aqueous emulsions or dispersions |
| 12/22/1994 | WO1994028735A1 Counter current diffusion extractor |
| 12/21/1994 | EP0441938B1 Process and installation for extracting fat and/or protein-containing material from fat-containing liquid material, in particular from slaughter deposits and waste |
| 11/09/1994 | EP0623380A1 Membrane for the separation of polydispersions and/or emulsions and process for the manufacture of said membrane |
| 10/12/1994 | CN1093373A Method for recovering cyclodextrin |
| 10/05/1994 | EP0618236A2 Method for recovering cyclodextrin |
| 09/20/1994 | US5348755 Extension of edible oil lifetime using activated carbons |
| 08/31/1994 | EP0612562A1 Process for preparing oil sorbent and device for continuously preparing the same |
| 08/25/1994 | DE4305636A1 Discontinuous process for recovering fat from fat separator suspensions, and appliance for carrying out the process |
| 07/06/1994 | CN2170948Y Oil extractor from waste material |
| 06/01/1994 | CN1087378A New technology of extracting oil from sesame oil cake |
| 05/26/1994 | WO1994011571A1 Method for acidification of soap with sodium bisulphite solution |
| 04/20/1994 | EP0592622A1 Extension of edible oil lifetime using activated carbons. |
| 04/06/1994 | EP0591019A1 Improved process for producing esters from natural fats |
| 03/02/1994 | EP0584305A1 Method for purifying a non-electrically conductive liquid |
| 03/01/1994 | US5290579 Process for producing rice bran oil |
| 02/22/1994 | US5288408 Method of gelatin recovery and purification from encapsulation processes |
| 02/10/1994 | DE4321023C1 Recovery of fats and oils with improved purity from emulsions or dispersion - comprises adding alkyl sulphate and then separating by known methods |
| 02/02/1994 | CN1081331A Method for prodn. of natural phospholipid liquid |
| 02/01/1994 | US5283319 Process and control strategy for the recovery and use of excess carbon dioxide discharge from a high pressure carbon dioxide acidulation process |
| 01/20/1994 | DE4223503A1 Appts. for disposal of slurries contg. oil or other grease - comprises slurry press whose filtrate is segregated into oil, water and oil slurry phases |
| 01/06/1994 | WO1994000542A1 Chemical process for purifying natural oils and fats |
| 01/05/1994 | DE4220639A1 Verfahren zur chemischen Reinigung natürlicher Öle und Fette A process for the chemical purification of natural oils and fats |
| 12/15/1993 | CN1079502A Method for preparation of fatty acid mixed ester |
| 11/03/1993 | CN1022603C Method for extracting fat, fatty acid & phosphatides from dregs of rapeseed oil |
| 10/27/1993 | EP0567405A1 Process, apparatus and plant for the treatment of fatty wastes and product of their valorization |
| 10/26/1993 | US5256613 Oxidative heat treatment in fluidized bed of specific height |
| 10/21/1993 | DE4212456A1 Recycling of used fats contg. water, esp. from fat-water separators - includes mixing and sedimenting fat, further separating at specific temp. and filtering and vacuum-distilling |