| Patents for B01D 11 - Solvent extraction (12,717) |
|---|
| 08/02/1977 | US4039612 Process for extracting cobalt, copper or zinc values using a 1-alkyl substituted benzimidazole |
| 08/02/1977 | US4039456 Counter current flow vibro-acoustical extraction apparatus |
| 08/02/1977 | US4039404 Cyclic process using A.C. for selective recovery of metals from materials containing same |
| 08/02/1977 | US4039389 Liquid-liquid extraction apparatus |
| 07/26/1977 | US4038377 Removal of selenium from urethane solutions |
| 07/26/1977 | US4038202 Process for elution of actinide metal microspheres |
| 06/21/1977 | US4031148 1,2-dichloroethane, trichloroethylene |
| 06/14/1977 | US4029734 Recovery of chromium values |
| 06/07/1977 | US4028463 Recovery of manganese values |
| 06/07/1977 | US4028060 Method and apparatus for the thermal extraction of hydrocarbons from a solid matrix |
| 06/07/1977 | US4027731 Methods of and apparatus for hydrocarbon recovery |
| 05/31/1977 | US4026790 Stripping zinc or cadmium complexes with sodium or potassium hydroxide |
| 05/31/1977 | US4026773 Extracting metal values from manganiferous ocean nodules |
| 05/24/1977 | US4025424 Process and apparatus for liquid-liquid counterflow extraction |
| 05/17/1977 | US4023964 Method of obtaining copper from copper-bearing ores |
| 05/10/1977 | US4022688 Water, emulsifier, petroleum products, contaminants |
| 04/26/1977 | US4020105 Oxime |
| 04/19/1977 | US4018865 A-hydroxyoximes, sulfonic acids |
| 04/19/1977 | US4018681 Filtration of cellulosic solutions |
| 04/19/1977 | US4018561 Apparatus for extraction of polonium - 210 from irradiated bismuth using molten caustic |
| 04/19/1977 | US4018234 Mechanical lipid removal from tobacco leaves |
| 04/05/1977 | US4016056 Lixiviation with cupric chloride, extraction, oxidation, sulfation, electrolysis |
| 04/05/1977 | US4016054 Hydrometallurgical treatment process for extracting constituent metal values from ferro-nickel |
| 04/05/1977 | US4015946 Lactams, solvent extraction |
| 03/29/1977 | US4014786 Continuous process for producing synthesis gas fuel gas, reducing gas |
| 03/29/1977 | US4014754 Adding a plasticizer, distillation, n-methyl pyrrolidone |
| 03/29/1977 | US4014736 Fluid flow, pressure differential |
| 03/29/1977 | US4014667 Antifreeze recovery system |
| 03/15/1977 | US4012531 Process for extracting antioxydants |
| 03/15/1977 | US4012289 Acetone separation using sulfolaneas extractive solvent |
| 03/15/1977 | US4012194 Extraction and cleaning processes |
| 03/08/1977 | US4011297 In-situ ph measurement of organic-continuous solvent extraction processes |
| 03/01/1977 | US4010099 Settlers for copper liquid extraction systems |
| 02/15/1977 | US4008154 Rotary filter wash distributor |
| 02/15/1977 | US4008076 Hydrometallurgy |
| 02/01/1977 | US4006062 Still extractor with novel stopcock means |
| 01/11/1977 | US4002687 Process for the hydroperoxidation of branched alkanes in a plurality of stages, comprising washings between the said stages |
| 01/11/1977 | US4002562 Without acidification, liquid amine |
| 01/11/1977 | US4002430 Extraction tube for polyamides |
| 01/04/1977 | US4001109 Isopropanol, cyclohexane |
| 12/21/1976 | US3998726 Hydrocarbon deasphalting process and solvent extractor therefor |
| 12/21/1976 | US3998607 Alkali metal catalyst recovery process |
| 12/14/1976 | US3997445 Apparatus for liquid-liquid countercurrent extraction |
| 12/07/1976 | US3996140 Apparatus for continuous liquid-liquid extraction of water with a solvent |
| 11/30/1976 | US3994805 Angle rotor countercurrent chromatography |
| 11/23/1976 | US3993293 Automatic leaching system for hydro-metallurgical production of zinc |
| 11/23/1976 | US3992983 Preparation of tea extracts |
| 11/16/1976 | US3992156 Mass transfer apparatus |
| 11/09/1976 | US3991154 Or breeder material containing thorium dissolved in an acid solution |
| 11/02/1976 | US3989467 Apparatus for contacting immiscible fluids |
| 11/02/1976 | US3989466 Liquid-liquid extraction apparatus including fibrous strand packing |
| 10/26/1976 | US3988116 Apparatus for countercurrent liquid-liquid extraction |
| 10/19/1976 | US3987145 Ferric ion as a scavenging agent in a solvent extraction process |
| 10/12/1976 | US3985812 Countercurrent extraction with an alkali metal hydroxide |
| 10/12/1976 | US3985644 Methanol mixtures as solvents for aromatics extraction |
| 10/12/1976 | US3985552 Separation of platinum group metals and gold |
| 10/05/1976 | US3984331 Liquid-liquid settler used in solvent extraction apparatus |
| 10/05/1976 | US3984287 Apparatus for separating organic material from particulate tar sands and coal and agglomeration of the particulate residue |
| 09/28/1976 | US3983222 Continuous process |
| 09/21/1976 | US3981961 Method of selective stripping of plutonium from organic solvents loaded with plutonium |
| 09/21/1976 | US3981797 Control of hydrocarbon deasphalting process |
| 09/14/1976 | US3980750 Method of selective stripping of plutonium from an organic solvent containing plutonium and in some cases uranium by reduction of said plutonium |
| 09/14/1976 | US3980723 Purging of inerts in chlorinated hydrocarbon production |
| 09/14/1976 | US3980528 Solvent separation of diolefins from mixtures containing the same |
| 09/07/1976 | US3979281 Continuous liquid extraction process with periodic flow of the denser stream |
| 08/31/1976 | US3977829 Liquid-liquid mass transfer apparatus |
| 08/31/1976 | US3977203 Liquid extraction with a polar solvent |
| 08/10/1976 | US3973759 Liquid-liquid mixer |
| 08/03/1976 | US3972981 Method of preventing gypsum scale formation in phosphoric acid plant filters |
| 08/03/1976 | US3972807 Hydrocarbon deasphalting via solvent extraction |
| 07/27/1976 | US3971843 Process for liquid/liquid extraction of gallium |
| 07/20/1976 | US3970541 Gas extraction of coal |
| 07/20/1976 | US3970469 Extraction tower |
| 07/20/1976 | US3970432 Multistage vertical extractor for liquid-liquid counterflow extraction |
| 07/13/1976 | US3969478 Process for separation of tungsten and molybdenum by extraction |
| 07/13/1976 | US3969196 Process for the separation of mixtures of substances |
| 07/06/1976 | US3968153 Extraction of acrylic acid and/or methacrylic acid with a solvent mixture of methylethylketone and xylene or ethylbenzene |
| 06/29/1976 | US3966981 Process for removing residual solvents |
| 06/29/1976 | US3966909 Solvent extraction of aluminum |
| 06/29/1976 | US3966873 Mixing, solvent extraction, stripping |
| 06/29/1976 | US3966872 Solvent extraction, stripping |
| 06/29/1976 | US3966611 Filter |
| 06/29/1976 | US3966610 Solid-liquid slurries |
| 06/29/1976 | US3966569 Method of recovering metal from metalliferous waste |
| 06/29/1976 | US3966417 Apparatus for contacting alkylate containing alkyl fluoride with hydrogen fluoride |
| 06/29/1976 | US3966410 Group extraction of organic compounds present in liquid samples |
| 06/08/1976 | US3962315 Process for the purification of terephthalic acid dimethyl ester |
| 06/08/1976 | US3962076 Process for converting aqueous sewage to potable water |
| 06/08/1976 | US3962074 Butanol, butyl acrylate |
| 05/25/1976 | US3959438 Method for the fabrication of pure alumina from Al2 O3 and silica containing raw materials by leaching with hydrochloric acid |
| 05/25/1976 | US3958947 Hydrometallurgical leaching apparatus |
| 05/18/1976 | US3957635 Contacting liquids and solids in countercurrent |
| 05/11/1976 | US3956397 Process for extracting cycloaliphatic hydroperoxides |
| 05/11/1976 | US3956112 Of solute from immiscible liquid |
| 05/04/1976 | US3954415 Vessel for extracting bitumen from tar sands |
| 04/27/1976 | US3953581 Purification of wet-processed phosphoric acid using anhydrous solvents |
| 04/13/1976 | US3950488 Ion exchanging |
| 04/13/1976 | US3950431 Extraction with a solution of an alcohol and sodium hydroxide or sodium carbonate |
| 04/13/1976 | US3950230 Solvent extraction |
| 04/06/1976 | US3948888 Process for removing boric acid from lactams |