| Patents for B01D 11 - Solvent extraction (12,717) |
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| 09/05/1990 | EP0385130A2 Process and apparatus for the separation of a mixture of substances coming from an extractor |
| 09/04/1990 | US4954260 Countercurrent separation process and apparatus |
| 09/04/1990 | CA1273581A1 Extract of swertia japonica makino and method of obtaining the same |
| 08/29/1990 | EP0384308A1 Extract medicament |
| 08/29/1990 | CN1009332B Extracting rare-earth elements from sulphuric acid system |
| 08/28/1990 | US4952378 Method for neutralization treatment of sulfuric acid containing iron ions |
| 08/28/1990 | US4951561 Apparatus for fluid-solid bed processing |
| 08/28/1990 | US4951557 Apparatus for decaffeination of aqueous extracts |
| 08/28/1990 | CA1273209A1 Utilization of oxygen in leaching and/or recovery procedures employing carbon |
| 08/22/1990 | EP0180900B1 Process for the adjustment of the structure and/or surface characteristics of oxidized materials |
| 08/22/1990 | CN2060687U Extractor of multi-defection interface |
| 08/21/1990 | CA1272866A1 Method for dispersing two phases in a solvent extraction process and a pump mixer for realizing the method |
| 08/16/1990 | EP0382519A2 Extraction composition, test kit and their use to extract or determine herpes simplex viral antigen |
| 08/16/1990 | EP0382317A2 Draw-off device |
| 08/16/1990 | EP0382116A2 Process for removing pesticides from ginseng root |
| 08/16/1990 | DE4003483A1 Caffeine removal from raw coffee - by extn. with supercritical carbon di:oxide super-satd. with water |
| 08/15/1990 | CN1044597A Process for removal of pesticides from ginseng roots |
| 08/14/1990 | US4948511 Solvent extraction with countercurrent flow of nonpolar, water-immiscible hydrocarbon mixture, burning contaminated stream |
| 08/14/1990 | US4948394 Introduction of a polar solvent and compression of gas-liquid mixture, separation and transportation |
| 08/09/1990 | CA2007733A1 Extraction composition, test kit and their use to extract or determine herpes simplex viral antigen |
| 08/08/1990 | EP0380879A1 Removal of acidic impurities in processes for solvent extraction of aromatics from nonaromatics |
| 08/08/1990 | CN1044409A Solvent extraction |
| 08/08/1990 | CN1009111B Continous process for mercaptan extraction from highly definic feed stream |
| 08/07/1990 | US4947340 Instrument for the measurement and determination of chemical pulse column parameters |
| 08/07/1990 | US4946695 Process for the extraction of nonpolar constituents from plant material |
| 08/07/1990 | US4946561 Process for obtaining trioxane from aqueous solutions by high-pressure extraction |
| 08/01/1990 | EP0379963A1 Extraction and seperation method and apparatus using supercritical fluid |
| 08/01/1990 | EP0379623A1 Production of high purity alkaloids |
| 08/01/1990 | EP0179863B1 Liquid co2 /cosolvent extraction |
| 08/01/1990 | CN1044281A Synthesis and application of diphosphonate ester |
| 08/01/1990 | CN1044234A Corn steeping process and apparatus |
| 07/31/1990 | US4944927 Solvent extraction using acetic acid and water mixture |
| 07/31/1990 | CA2003344A1 Removal of acidic impurities in processes for solvent extraction of aromatics from nonaromatics |
| 07/31/1990 | CA1272146A1 Production of low-ethanol beverages by membrane extraction |
| 07/25/1990 | EP0379261A1 A process for cleaning soil |
| 07/25/1990 | EP0379232A1 A corn steeping process as well as a process and apparatus for processing corn |
| 07/24/1990 | US4943403 Ceramics and metals, removing dispersant by solvent extraction with carbon dioxide, reduces strain in final product |
| 07/19/1990 | DE3901275A1 Process for the production of oily camomile extract |
| 07/18/1990 | EP0377686A1 Method for extracting volatile compounds with supercritical carbon dioxide, and compounds so obtained |
| 07/17/1990 | US4942023 Complexing metals with 8-hydroxyquinolines |
| 07/17/1990 | US4941959 Solvent extraction, countercurrent flow, emulsification |
| 07/10/1990 | CA1271494A1 Extraction of alcohols with phosphine oxides |
| 07/10/1990 | CA1271428A1 Immobilized-interface solute-transfer process and apparatus |
| 07/04/1990 | EP0376064A2 Method for producing a foamed resin |
| 07/03/1990 | US4938895 Process for removing radioactive ruthenium from aqueous solution |
| 07/03/1990 | US4938871 Method for the recovery of actinides and/or lanthanides using novel extraction agents, and novel propane diamides, and the preparation thereof |
| 06/28/1990 | WO1990006795A1 AN EXTRACTION PROCESS AND APPARATUS TO REMOVE PCBs FROM SOIL AND SLUDGE |
| 06/27/1990 | EP0375099A2 Method and apparatus for purifying and separating a high polymer from a solution thereof |
| 06/27/1990 | EP0374879A2 Method for extraction of impurities in polymer |
| 06/27/1990 | CN1008507B Process for decaffeination of tea |
| 06/26/1990 | CA1270623A1 Supercritical fluid extraction of animal derived material |
| 06/21/1990 | DE3844244A1 Compounds having antibiotic, cytostatic and/or antiviral action derived from carnivorous plants |
| 06/19/1990 | US4935550 Catalytic metal recovery from non-polar organic solutions |
| 06/19/1990 | US4935104 Process for the continuous hydro-distillation of plants |
| 06/14/1990 | WO1990006189A1 Cleaning process using phase shifting of dense phase gases |
| 06/13/1990 | EP0372761A2 Process for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water |
| 06/12/1990 | US4933432 Method of reducing dimethyl polysiloxane remaining in silicone rubber products to the ultra-micro level |
| 06/12/1990 | US4933404 Processes for microemulsion polymerization employing novel microemulsion systems |
| 06/12/1990 | US4933198 Production of low-ethanol beverage by membrane extraction |
| 06/07/1990 | CA2002066A1 Cleaning process using phase shifting of dense phase gases |
| 06/06/1990 | EP0371832A1 Recovery of Gallium contained in aqueous solutions |
| 06/06/1990 | EP0371647A1 Method for removing organic contaminants from soil |
| 06/06/1990 | EP0371230A2 Method and apparatus for the elimination of impurities from polymer plastics, and apparatus to carry out the method |
| 05/30/1990 | EP0370869A1 Diffusion of beet sugar |
| 05/29/1990 | US4929462 Method and apparatus for continuous contact of supercritical fluid with particulate solids |
| 05/29/1990 | US4929348 Solvent extraction of soyben oil |
| 05/29/1990 | CA1269799A1 Method for extracting protein with organic acid |
| 05/22/1990 | US4927652 Critical temperature and pressure |
| 05/22/1990 | US4927609 Recovery of gallium/rare earth values from oxide mixtures thereof |
| 05/15/1990 | US4925565 Process for extracting and disposing of nitrophenolic by-products |
| 05/15/1990 | US4925441 Centrifugal contactor modified for end stage operation in a multistage system |
| 05/15/1990 | CA1268924A1 Circular solvent extractor |
| 05/09/1990 | EP0270638B1 Process and device for separating extraneous matter bound to bulk material |
| 05/08/1990 | US4922812 Device for continuously decaffeinating raw coffee |
| 05/03/1990 | DE3935405A1 Extn. of impurities from powdered or particulate material - using an extractant in an extractor filled with material in which the vol. fraction of pores or cavities is 0.36-0.95 |
| 05/02/1990 | EP0365898A1 Process and apparatus for the sanitation of contaminated soil |
| 05/02/1990 | CN1041742A Extraction method for treating acid wash waste liquid of rolled steel |
| 04/26/1990 | CA2001202A1 Method for extraction of impurities from powder material |
| 04/25/1990 | EP0365072A2 Apparatus and process for liquid-liquid contact |
| 04/25/1990 | EP0364671A2 Apparatus and process for drying liquid |
| 04/25/1990 | CN1041536A Process for extracting solid material using solvent and apparatus for implementing same |
| 04/24/1990 | US4919816 Using ion exchange resins to reduce corrosion |
| 04/18/1990 | EP0364025A2 Process for extracting essentially aliphatic, low-molecular-weight fractions from regenerated humic acids from coal |
| 04/17/1990 | CA1267861A1 Process for producing crude coal-tar pitches having improved properties and use of same |
| 04/12/1990 | DE3833923A1 Arrangement for carrying out an extraction process in the liquid phase |
| 04/10/1990 | US4915919 Recovery of germanium from aqueous solutions by solvent extraction |
| 04/05/1990 | WO1990003209A1 Method and extraction device for extraction of a solid or semi-solid sample |
| 04/04/1990 | EP0362116A2 Dioxime kinetic enhancer for solvent extraction of gallium from basic aqueous solutions thereof |
| 04/03/1990 | US4913814 Jet pump system for fluidic contactor cascade |
| 03/28/1990 | CN1040825A Catalytic metal recovery from non-polar organic solutions |
| 03/27/1990 | US4912228 In solution of an water insoluble amine extractant at acidic ph |
| 03/21/1990 | CN1040511A Method of enhanced solvent extraction and apparatus therefor |
| 03/21/1990 | CN1007243B Method and apparatus for removing water from ethanol |
| 03/20/1990 | US4910334 Recovery of overbased alkaline earth metal additives from centrifugates |
| 03/20/1990 | US4909939 Process for solvent extraction using phosphine oxide mixtures |
| 03/20/1990 | US4909898 Removal volatile diluent liquid from polymer mixture using another immescible liquid |
| 03/20/1990 | US4909868 High pressure spray system; extraction |
| 03/14/1990 | EP0238527B1 Method and device for extracting constituents by means of a supercritical fluid or a pressure liquid |
| 03/13/1990 | US4908462 Cobalt recovery method |
| 03/13/1990 | CA1266573A1 Soil and industrial waste decontamination |