| Patents for C01G 37 - Compounds of chromium (1,613) |
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| 08/19/1986 | CA1209785A1 Compositions |
| 08/13/1986 | EP0190352A1 Alkali metal-carrying substance, and its use as catalyst |
| 08/12/1986 | CA1209321A1 Preparation of pigment grade chromium oxide |
| 07/30/1986 | EP0188868A1 Ceramic compound and air electrode materials for high-temperature electrochemical cells |
| 06/19/1986 | WO1986003480A1 Method of recovery of gold and other metals |
| 05/06/1986 | US4587116 Process for treating chlorinated nitrogen-containing hydrocarbons |
| 04/23/1986 | EP0178498A2 Process for the reduction of metal ions in aqueous solutions |
| 04/15/1986 | CA1203071A1 Catalyzed aldol condensations |
| 03/25/1986 | US4578251 Removal of chromium from cobalt |
| 03/04/1986 | US4574078 Hydrolysis, roasting |
| 02/11/1986 | US4569830 Method and plant to recover chromium salts from tannery reflux water |
| 01/28/1986 | US4567031 Process for preparing mixed metal oxides |
| 01/07/1986 | US4563337 Method and apparatus for continuous ion exchange |
| 01/07/1986 | US4563220 Orange and red shades |
| 12/31/1985 | US4562124 Air electrode material for high temperature electrochemical cells |
| 12/24/1985 | US4560546 Chromium hydroxide precipitate obtained by a continuous process for the removal of chromium from waste waters |
| 12/24/1985 | CA1198260A1 Extraction of protein and chromium from tannery wastes |
| 12/19/1985 | WO1985005562A1 Alkali metal-carrying substance, and its use as catalyst |
| 11/12/1985 | CA1196619A1 Process and solvent for extraction of the chromates present in an aqueous solution |
| 11/10/1985 | CN85102459A Artificial aggregate of chromium slag |
| 11/05/1985 | US4551328 Selectively absorbent layer for solar collectors, and method of making it |
| 10/16/1985 | EP0158406A1 Dispersion of magnetic particles |
| 09/17/1985 | US4542009 Synthesis of intercalatable layered stable transition metal chalcogenides and alkali metal-transition metal chalcogenides |
| 07/16/1985 | US4529448 Yellow, organge bismuth oxide, chromium oxide |
| 07/09/1985 | US4528175 Production of chromium (III) compounds |
| 07/02/1985 | US4526650 Mixing pickling acid comprising iron, chrome, nickel, nitric and hydrofluoric acids with sulfuric acid, evaporating, crystallizing, where crystallization is promoted by dividing metal salt, precipitating separately |
| 06/26/1985 | EP0146127A2 Controlled initiation chromium dioxide synthesis |
| 06/19/1985 | EP0145561A2 Fibrous material for an electrolyzer diaphragm, and diaphragm comprising such material |
| 06/18/1985 | US4524008 Dissolving metal oxide modifier in chromium oxide solution before adding to the ferromagnetic paste |
| 05/23/1985 | WO1985002208A1 Fiber material for electrolyzer diaphragm and diaphragm comprising such a material |
| 03/05/1985 | CA1183489A1 Process for recovering cr(vi) ions from a chlorate cell liquor |
| 02/19/1985 | US4500350 Disintegration of chromites |
| 02/13/1985 | EP0132906A2 Extracting chromium (III) from aqueous solutions with 2-ethylhexyl acid phosphate |
| 01/23/1985 | EP0131685A2 Synthetic expanded layered minerals and process for producing them |
| 01/22/1985 | US4495080 Method for preparing a cation exchanger |
| 12/11/1984 | US4487747 Production of metal chlorides |
| 11/20/1984 | US4483829 Comminution, hydrolysis producing polypeptide and solid chromium hydroxide |
| 11/06/1984 | US4481087 Process for removing chromate from solution |
| 10/24/1984 | EP0122501A1 Process for the production of basic chromium-aluminium sulfates |
| 10/09/1984 | US4476324 Improved catalyst of anionic clay mineral |
| 09/05/1984 | EP0117755A2 Process and apparatus for preparing metal oxide particles |
| 07/03/1984 | CA1170060A1 Chromium recovery from superalloy scrap by selective chlorine leaching |
| 06/13/1984 | EP0110115A1 Acicular ferromagnetic chromium dioxide particles |
| 06/12/1984 | US4454244 Catalytic smectites by roasting a cluster compound and reaction product of a di- and trivalent metal salt |
| 05/01/1984 | US4446026 Process and solvent for extraction of the chromates present in an aqueous solution |
| 04/10/1984 | US4442073 Oxidation, solvent extraction, precipitation |
| 03/21/1984 | EP0103091A1 Mixed phases based on bismuth and chromium oxides and process for preparing them |
| 03/13/1984 | US4436705 Extracting chromium (III) from aqueous solutions with 2-ethylhexyl acid phosphate |
| 02/14/1984 | US4431625 Reacting sodium dichromate and sulfuric acid; crystallization by evaporation of aqueous reaction mixture |
| 02/07/1984 | CA1161784A1 Chromate removal from concentrated chlorate solution by chemical precipitation |
| 02/01/1984 | EP0099499A1 Process for preparing pigments comprising mixed phases of bismuth oxide and chromium oxide |
| 01/31/1984 | US4428852 From chromic oxide and chromic anhydride |
| 12/21/1983 | EP0096241A1 Production of metal chlorides |
| 12/07/1983 | EP0095783A2 Catalyzed aldol condensations |
| 11/30/1983 | EP0095358A1 Method of recovering metal values from superalloy scrap |
| 11/30/1983 | EP0094983A1 Process for removing transition metal ions from an aqueous solution with a reticular ion exchange resin containing a crystalline transition metal aluminate |
| 11/29/1983 | US4417997 Method for recovery of metals from spent iron-chrome shift catalyst and method of forming new catalyst |
| 11/08/1983 | CA1156642A1 Method for preparing a cation exchanger and method for using such an exchanger for extracting metals from liquids |
| 08/30/1983 | US4401573 Formation of chromium hydroxide from chromium oxide |
| 08/17/1983 | EP0086042A1 Continuous synthesis of chromium dioxide |
| 08/16/1983 | CA1151845A1 Process for the production of an iron-free chromium (iii) compound |
| 07/12/1983 | US4393029 Preventing coprecipitation of iron by maintaining some bivalent chromium in solution |
| 07/12/1983 | US4392979 Complexing, ion exchanging, spinels |
| 07/12/1983 | US4392961 Magnesium aluminate anion exchangers |
| 06/14/1983 | CA1147969A1 Recovery of chromium from scrap |
| 05/10/1983 | US4382982 Process for protecting magnetic particles with chromium oxide |
| 05/04/1983 | EP0078042A1 Surface modified ferromagnetic chromium dioxide |
| 03/22/1983 | US4377410 Sulfiding |
| 03/15/1983 | US4376706 Chromium and zinc removal and recovery by ion exchange |
| 03/15/1983 | EP0059212A4 Magnesium aluminium spinels. |
| 03/08/1983 | US4376099 Process for recovering Cr(VI) ions from a chlorate cell liquor |
| 02/15/1983 | US4374118 Heat treatment in introgen or an inert gas |
| 02/01/1983 | US4371471 Hydrocarbon stock solutions of Cr+6 compounds storage-stabilized by a soluble partial ester of a phosphoric acid |
| 01/11/1983 | CA1139080A1 Stripping and recovery of dichromate in electrolytic chlorate systems |
| 01/05/1983 | EP0068787A1 Preparation of pigment grade chromium oxide |
| 01/04/1983 | US4367213 Use of selected catalyzed hydrazine compositions to reduce hexavalent chromium [Cr(VI)] |
| 12/28/1982 | US4366261 Chromium oxide in ion exchange resin |
| 12/01/1982 | EP0065863A2 Method of producing ceramic-forming metal hydroxide and oxide powders |
| 10/19/1982 | US4355006 Process for the oxidative dissociation of chrome-containing ores |
| 09/14/1982 | US4349514 Process for recovery of reusable chromic acid from the waste chromic acid solution containing impurities |
| 09/08/1982 | EP0059212A1 Magnesium aluminium spinels. |
| 08/10/1982 | US4343687 Production of chain reactions by laser chemistry |
| 07/20/1982 | US4340494 Process for the manufacture of ferromagnetic chromium dioxide |
| 06/29/1982 | US4337227 Recovery of chromium from waste solutions |
| 06/01/1982 | US4332584 Recovery of potential energy and chromium values from leather tannery wastes |
| 06/01/1982 | CA1124676A1 Chromate removal by precipitation |
| 05/25/1982 | CA1124416A1 Cyclic operation of a bed of mixed ion exchange resins |
| 04/27/1982 | US4326961 Magnesium aluminate anion exchangers |
| 04/27/1982 | CA1122356A1 Metal chromate pigment compositions |
| 04/13/1982 | US4324768 Reaction of lead monoxide with acid in presence of hydroxylamine salt |
| 03/24/1982 | EP0047799A1 Improved method for production of alkali metal chromates from chrome ores |
| 03/18/1982 | WO1982000820A1 Magnesium aluminum spinels |
| 03/16/1982 | CA1119775A1 Process for preparation of lead compounds |
| 03/16/1982 | CA1119772A1 Selective chromate removal from a chlorate solution |
| 03/09/1982 | CA1119383A1 Recovery of cr.sub.2o.sub.3 from a chromium bearing solution |
| 02/23/1982 | CA1118748A1 Titanium and vanadium trichloride catalysts for polymerization of olephins |
| 02/10/1982 | EP0045590A1 Production of chromium trioxide |
| 02/09/1982 | US4314986 Method and container for reducing pertechnetate |
| 01/19/1982 | US4311770 Novel ferromagnetic chromium dioxide and rhodium dioxide material and its preparation |
| 01/13/1982 | EP0043776A1 Alumina-based mixed oxide compounds, manufacturing process and use thereof |