| Patents for B01D 11 - Solvent extraction (12,717) |
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| 03/06/1991 | CN1011863B Method and blank for mfg. high efficiency open volumed packing bodies |
| 03/05/1991 | US4997569 Immobilized-interface solute-transfer process |
| 02/27/1991 | EP0413781A1 Process for the extraction or flushing out of a substance from a heterogenous system, and installation for carrying out the process |
| 02/19/1991 | US4994272 Process and apparatus for freeing bitter lupin seed of bitter substances therein |
| 02/12/1991 | US4992248 Method for neutralizing sulfuric acid containing zinc ion |
| 02/12/1991 | CA1280116C Amino-acids separation process |
| 02/12/1991 | CA1280031C Aromatics recovery |
| 02/06/1991 | EP0412053A2 Supercritical fluid and near critical gas extraction of organic solvents from formed articles |
| 02/05/1991 | US4990692 Extraction from an aqueous solutio of aromatic sulfonic acid using cyclohexyl ethers |
| 01/30/1991 | EP0409972A1 Apparatus and method for delivering supercritical fluid. |
| 01/30/1991 | CN1048808A Apparatus to contact liquids of different density |
| 01/29/1991 | WO1991001741A1 Extracts of the acanthospermum hispidum plant |
| 01/29/1991 | CA2035031A1 Extracts of the acanthospermum hispidum plant |
| 01/24/1991 | WO1991000997A1 System and method for monitoring substances and reactions |
| 01/24/1991 | CA2350892A1 System and method for monitoring substances and reactions |
| 01/22/1991 | CA1279221C Process for the decaffeination of tea |
| 01/22/1991 | CA1279197C Cobalt recovery method |
| 01/21/1991 | WO1991001170A1 Apparatus to contact liquids of different density |
| 01/21/1991 | CA2035440A1 Apparatus to contact liquids of different density |
| 01/16/1991 | EP0408203A2 Heterocyclic thione |
| 01/16/1991 | EP0393029A4 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents |
| 01/16/1991 | CN2069295U Solid-liquid extractor |
| 01/15/1991 | US4985265 Process for extraction of spices |
| 01/15/1991 | US4985152 Process for separating solvents used in the purification of products |
| 01/15/1991 | US4985141 Liquid-liquid contactor columns |
| 01/15/1991 | US4984602 Pressure control apparatus and apparatus for effecting extraction chromatographic separation, and fractionation by employing the same |
| 01/13/1991 | CA2020846A1 Heterocyclic thione |
| 01/09/1991 | EP0395714A4 Processes for microemulsion polymerization employing novel microemulsion systems |
| 01/09/1991 | EP0179135B1 Separating a component which forms a dispersion in, or which is dissolved in, continuous liquid |
| 01/08/1991 | US4983300 Process for the reextraction in aqueous solution of the plutonium present in an organic solvent, more particularly usable for splitting uranium and plutonium |
| 01/03/1991 | DE3920775A1 Solns. of active agents with carrier solns. - obtd. by using two bags for storage, both with fillers and connector |
| 01/02/1991 | CN1048171A Solid-fluid contacting apparatus with screen at fluid outlet |
| 01/01/1991 | US4981688 Method for obtaining an extract or Ginkgo biloba leaves |
| 01/01/1991 | US4981579 Process for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water |
| 12/27/1990 | EP0404506A2 Solids-fluid contacting apparatus with screen at fluid outlet |
| 12/27/1990 | EP0404327A1 Recovery of pure platinum and palladium |
| 12/27/1990 | EP0404292A2 Method and apparatus for continuous contact of supercritical fluid with particulate solids |
| 12/27/1990 | EP0404226A1 Process for purifying products containing esters of a non-reducing sugar and one or more fatty acids |
| 12/27/1990 | EP0403669A1 Method and device for the elution of a granular material |
| 12/27/1990 | CA1278315C Method and apparatus for removing water from ethanol |
| 12/22/1990 | CA2019702A1 Process for purifying products containing esters of a non-reducing sugar and one or more fatty acids |
| 12/20/1990 | DE3919384A1 Continuous extn. of dissolved material - comprises uniformly spraying medium from store of condensed vapour |
| 12/19/1990 | EP0215898B1 Liquid membrane system for the removal of nitrate from water |
| 12/19/1990 | CN1047814A Apparatus for fluid-sold bed processing |
| 12/18/1990 | US4978788 Copper as perchlorate using o-hydroxyaryloximes and branched aliphatic or aromatic alcohols or esters |
| 12/12/1990 | EP0402120A2 Countercurrent separation process and apparatus |
| 12/12/1990 | EP0402003A2 Apparatus for fluid-solid bed processing |
| 12/11/1990 | US4976979 Process for the decaffeination of tea |
| 12/11/1990 | US4976867 Test module containing fiber loops connected to pressurized feed liquid and immersed in immiscible extractant |
| 12/08/1990 | CA2018637A1 Countercurrent separation process and apparatus |
| 12/06/1990 | CA2018312A1 Apparatus for fluid-solid bed processing |
| 12/04/1990 | US4975198 Process for the removal of organic contaminants from soils and sediment |
| 11/29/1990 | DE4016648A1 Introducing solids or fluids into a liq.-solid contact system - comprises liq. circulated through nozzle into space where it picks up solid particles before re-entering contact vessel |
| 11/28/1990 | CN1010583B Process for extracting paraffins from their mixtures with paraffinsulphonic acids |
| 11/28/1990 | CN1010579B Recovering scandium from titanium-iron ore |
| 11/27/1990 | CA1276872C Distributor for a column |
| 11/22/1990 | DE3915930A1 Removing harmful substances from fluid - by passing fluid through polymer, lipoid or oil dispersed in medium, and removing with microorganisms |
| 11/20/1990 | US4971692 Settler for liquid-liquid extractors |
| 11/15/1990 | DE3913779A1 Multi-stage mixer-settler for counter-flow extn. - has separate chambers joined obliquely by three part connector including resilient sleeve |
| 11/14/1990 | EP0396790A1 Process for the removal of nitrate and organic pollutants from effluents |
| 11/09/1990 | CA2016161A1 Removal of nitrate and/or organic pollutants from effluents |
| 11/07/1990 | EP0396258A2 Apparatus and method for predetermining maximum pressure differentials for microporous hollow fibres employed in liquid liquid extractions |
| 11/07/1990 | EP0395714A1 Processes for microemulsion polymerization employing novel microemulsion systems |
| 11/06/1990 | US4968787 Method for treating glycoside |
| 11/06/1990 | US4968434 Recovering rare earth compounds from phosphoric acid solutions |
| 10/30/1990 | US4966707 Liquid/liquid extractions with microporous membranes |
| 10/29/1990 | WO1990013677A1 Process for recovering germanium |
| 10/24/1990 | EP0393029A1 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents. |
| 10/23/1990 | US4964995 Supercritical separation process for complex organic mixtures |
| 10/17/1990 | CN1010008B Process for extraction of paraffin from mixtures thereof with alkane-sulphonic acids |
| 10/16/1990 | US4963493 Extraction rack |
| 10/10/1990 | EP0391504A1 Method for extraction of Rhizoma Petasitidis and product obtained thereby |
| 10/10/1990 | EP0355159A4 Mixing-settling apparatus for liquid-liquid extraction |
| 10/10/1990 | CN1009941B Processand device for extraction by ultrasonies of oleaginous products from oilseeds |
| 10/09/1990 | US4962275 Decompression through restrictor nozzle and stream into enclosure with oil to dissolve; separation of carotene/b-/ |
| 10/09/1990 | US4961856 Contacting aqueous solution containing palladium with solution of substituted heterocyclic ring compound |
| 10/05/1990 | CA2013203A1 Systems and methods for predetermining maximum pressure differentials for microporous hollow fibers employed in liquid-liquid extractions |
| 10/03/1990 | EP0389801A2 Method of regulating a purex solvent extraction process |
| 10/03/1990 | EP0389747A2 Process for transferring caffeine from one solvent to another |
| 10/03/1990 | CN2063042U Extractor |
| 10/02/1990 | US4960525 Hydrocyclone for washing particles in liquid suspension |
| 10/02/1990 | US4960221 Pressure vessel |
| 10/02/1990 | CA1274854A1 Process for the extraction of paraffins from mixtures thereof with alkane-sulphonic acids |
| 10/02/1990 | CA1274847A1 Process for the extractive separation of a carboxylic acid form an aqueous solution |
| 09/26/1990 | CN1009702B Cryogenic aroma recovery |
| 09/25/1990 | CA1274551A1 Continuous process for mercaptan extraction from a highly olefinic feed stream |
| 09/19/1990 | EP0388224A2 Method and apparatus for effecting chemical treatment |
| 09/19/1990 | EP0387752A2 Process for decreasing the salt of a biomass suspension |
| 09/19/1990 | EP0387307A1 Chemical reactions in reverse micelle systems |
| 09/18/1990 | US4957627 Process for liquid-solid contact |
| 09/15/1990 | CA2012109A1 Process for reducing the salt concentration in a biomass suspension |
| 09/12/1990 | EP0386641A1 Recovery of n-methyl-2-pyrrolidone |
| 09/12/1990 | CN1045230A Phase shifting reactor |
| 09/11/1990 | WO1990010484A1 Process for the extraction or flushing out of a substance from a heterogenous system, and installation for carrying out the process |
| 09/11/1990 | US4956176 Columns for holding beds, screening fluids |
| 09/11/1990 | US4956125 Method for extracting fats and oils |
| 09/11/1990 | US4956052 Extraction water and organic compound mixture |
| 09/11/1990 | US4955498 Sealing structure of pressure container |
| 09/11/1990 | US4955482 Screen cleaning in cil & cip systems |
| 09/11/1990 | CA2028842A1 Process for the extraction of flushing out of a substance from a heterogenous system, and installation for carrying out the process |