| Patents for B01D 11 - Solvent extraction (12,717) |
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| 02/28/1989 | US4807854 Leaching solution distribution arm and control therefor |
| 02/21/1989 | US4806249 Process for the separation of indium from anidic solutions containing it |
| 02/21/1989 | US4806228 Process for producing pitch raw materials |
| 02/21/1989 | CA1250210A1 Process for the treatment of iron- and zinc- containing hydrochloric acid pickles |
| 02/14/1989 | US4804390 Process for removing mineral impurities from coals and oil shales |
| 02/14/1989 | CA1249914A1 Device for continuous contacting of fluids and solids |
| 02/09/1989 | WO1989001042A1 Process for concentrating and purifying alcohol and apparatus therefor |
| 02/08/1989 | EP0302345A2 Process for jointly removing undesirable elements from valuable metals containing electrolytic solutions |
| 02/08/1989 | EP0302123A1 Settler for liquid-liquid extractors |
| 02/01/1989 | EP0301700A1 Neutralization of sulfuric acid containing iron ions |
| 02/01/1989 | EP0301341A1 Process for the separation of pure aromatics |
| 01/31/1989 | US4801384 Process for the removal of organic contaminants from soils and sedimenta |
| 01/26/1989 | WO1989000444A1 Process for separating metallic ions from aqueous solutions |
| 01/25/1989 | EP0300071A1 Process for the separation and purification of organic substances from impurities |
| 01/24/1989 | CA1249304A1 Tertiary-butylstyrene recovery |
| 01/24/1989 | CA1249301A1 Process for deoiling of olefin sulphonates |
| 01/18/1989 | EP0299466A1 Separator with movable receptacles |
| 01/18/1989 | EP0299276A2 Method for the isolation of polyarylene sulphides |
| 01/18/1989 | EP0299169A2 Selective recovery of tin by solvent extraction using branched tertiary phosphine oxides |
| 01/17/1989 | US4798915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids |
| 01/17/1989 | CA1248812A1 Process for the production of decaffeinated tea |
| 01/11/1989 | EP0298843A1 Process for separating rare earths by liquid-liquid extraction using solvents containing halogens or carboxylic acids |
| 01/11/1989 | EP0298842A1 Process for separating rare earths by liquid-liquid extraction using fluoride-type solvents |
| 01/11/1989 | EP0298787A1 Process for the preparation of lipid extracts with a high content in phospholipids from placenta material |
| 01/11/1989 | EP0298610A2 Extraction of oil from stable oil-water emulsions |
| 01/10/1989 | CA1248329A1 Ion exchange column |
| 01/10/1989 | CA1248328A1 Way for dispersing two phases in liquid-liquid extraction and circulation dispersion contactor for accomplishing the way |
| 01/10/1989 | CA1248326A1 Continuous extraction apparatus and process |
| 12/29/1988 | DE3719504A1 Process for heating a distillation apparatus |
| 12/28/1988 | CN88207556U Mixing clarificator |
| 12/21/1988 | EP0296145A2 Process and arrangement for feeding a pressure compartment |
| 12/14/1988 | EP0294751A1 Process for winning gallium from basic aqueous sodium aluminate solutions by liquid-liquid extraction |
| 12/13/1988 | CA1246326A1 Metal stripping system and an operation process therefor |
| 12/07/1988 | EP0293744A1 Process for recovering benzolmonosulfonic acids from aqueous solutions or suspensions |
| 12/06/1988 | US4789468 Porous membrane separates immiscible feed solution and extractant; prevents dispersion |
| 12/01/1988 | WO1988009199A1 A process for the removal of organic contaminants from solids and sediments |
| 12/01/1988 | DE3716689A1 Apparatus for semicontinuous performance of extraction processes |
| 11/30/1988 | EP0293245A2 Method for extraction of a substance from aqueous solution |
| 11/30/1988 | CN88102672A Process for recovery of gallium using liquid-liquid extraction |
| 11/29/1988 | US4787979 Dividing extractant and introducing different streams at different stages |
| 11/29/1988 | US4787918 Swelling in organic solvent; leaching |
| 11/29/1988 | CA1245459A1 Sulfide as a hypochlorite kill agent |
| 11/29/1988 | CA1245458A1 Process for the treatment of complex manganese ores, such as marine nodules |
| 11/23/1988 | CN88102521A Purifying method for the salt of barium |
| 11/23/1988 | CN88102499A Extraction of particulate materials |
| 11/23/1988 | CN87101034A Recovering scandium (sc) from titanium iron ore |
| 11/23/1988 | CN87101031A Extraction device and method for liquid with granules or high viscosity |
| 11/22/1988 | US4786497 Extraction with lower alcohol |
| 11/22/1988 | US4786480 Two-part fluid contactor |
| 11/22/1988 | US4786414 Solvent extraction, knitted bed of stainless steel and polypropylene strands |
| 11/22/1988 | US4786387 Applying nonuniform electric or magnetic field |
| 11/22/1988 | US4786187 Method for dispersing two phases in extraction and apparatus for realizing the method |
| 11/09/1988 | EP0290318A1 Method of recovering gallium by liquid-liquid extraction |
| 11/09/1988 | EP0290156A2 Extraction of particulate materials |
| 11/09/1988 | EP0290098A1 Process and apparatus for extracting oil or polychlorinated biphenyls from impregnated electrical components by means of a solvating agent, and distillation of the solvent |
| 11/08/1988 | US4783318 Apparatus for environmental leaching testing |
| 11/08/1988 | US4782843 Apparatus for cleaning particulate material |
| 11/08/1988 | CA1244476A1 Extractants and method for the recovery of palladium |
| 11/02/1988 | EP0289394A2 Process for the purification of a barium salt |
| 11/02/1988 | EP0289183A2 Production of rapeseed protein materials |
| 11/02/1988 | CN88202318U Multilayer defecation extractor |
| 11/02/1988 | CN88101564A Process for separation of rare earth elements by liquid-liquid extraction |
| 11/01/1988 | CA1243888A1 Procedure for segregation of mixtures of substances containing organic components |
| 10/26/1988 | EP0287694A1 Method for cleaning soils contaminated by toxic materials |
| 10/26/1988 | CN88101566A Rare-earth elements liquid-liquid extracting method |
| 10/25/1988 | US4780288 Solvent extraction columns |
| 10/25/1988 | US4780138 Sonic apparatus and method for facilitating the extraction of minerals from ore in a leachant |
| 10/25/1988 | US4780112 Using hydrogen fluoride and hydrofluorosilicic acid |
| 10/19/1988 | CN88200727U Mixing and clearing extractor of upright series double mixing chamber |
| 10/18/1988 | US4778688 Production of low-ethanol beverages by membrane extraction |
| 10/12/1988 | EP0286450A1 Recovery of hydrogen fluoride from aqueous solution containing ammonium fluoride and hydrogen fluoride |
| 10/12/1988 | EP0286449A1 Recovery of ammonia and hydrogen fluoride from ammonium fluoride solutions |
| 10/12/1988 | CN87102340A Dual extracting jar for preparing effective principle of traditional chinese medicine |
| 10/11/1988 | US4776173 Method for extracting a substance from animal derived material |
| 10/11/1988 | US4776104 Balanced extraction system |
| 10/11/1988 | CA1242915A1 Method and equipment for the washing of cellulosic pulp |
| 09/28/1988 | EP0284504A1 Process for the liquid-liquid extraction of rare-earth metals |
| 09/28/1988 | EP0284503A1 Process for the liquid-liquid extraction of rare earth metals |
| 09/21/1988 | CN88100728A Precipitate box of liquid-liquid extraction apparatus |
| 09/20/1988 | US4771634 Solvent disperser for removing oil from sponge core |
| 09/13/1988 | US4770807 Novel extraction agents and novel propane diamides |
| 09/13/1988 | US4770782 Method for preventing gel/emulsion formation |
| 09/13/1988 | US4770780 Liquid CO2 /cosolvent extraction |
| 09/07/1988 | EP0280935A2 Process for extracting organic substances from solids |
| 09/07/1988 | EP0280934A2 Process for extracting organic substances from solids |
| 09/07/1988 | EP0280817A2 Process for the removal of basic materials from plant products |
| 09/06/1988 | US4769112 Method for removing water from ethanol |
| 08/31/1988 | EP0280144A2 Use of citric-acid esters and of mixtures of these esters in extracting iron |
| 08/31/1988 | CN87100235A Closed purification treatment of zine chloride double salt solvent |
| 08/30/1988 | US4767515 Surface area generation and droplet size control in solvent extraction systems utilizing high intensity electric fields |
| 08/25/1988 | WO1988006055A1 Settler for liquid-liquid extractors |
| 08/25/1988 | DE3704773A1 Process for separating off volatile substances from solid and liquid materials |
| 08/23/1988 | US4765257 Apparatus and method for waste disposal |
| 08/18/1988 | DE3703777A1 Process and device for liquid withdrawal from particle-laden liquids, in particular for dewatering suspensions or sludges and use of the process |
| 08/17/1988 | EP0278328A1 Process for extracting heavy metals from polluted soils, and device for counter-current extraction in such a process |
| 08/17/1988 | CN85101874B Separation and extraction of high purity thulium oxide and lutecium oxide by chromatography |
| 08/16/1988 | US4764278 Process for reducing the concentration of haloorganic compounds in water |
| 08/16/1988 | US4764276 To increase resin reaction efficiency in minimum substrate |
| 08/10/1988 | CN85101611B Separation of high purity dysprosium oxide and holmium oxide by extraction chromatography with 507 extraction elution resin |
| 08/09/1988 | US4762693 Process for working up heavy metal-containing residues originally from the decontamination of crude phosphoric acid |