| Patents for C01G 9 - Compounds of zinc (4,420) |
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| 02/04/1992 | US5086034 Calcination and solid state reaction of ceramic-forming components to provide single-phase superconducting materials having fine particle size |
| 01/22/1992 | EP0467194A1 Process for the preparation of metal oxide powder |
| 01/07/1992 | US5079203 Polyoxometalate intercalated layered double hydroxides |
| 01/02/1992 | EP0463079A1 Zinc oxyfluoride transparent conductor. |
| 12/25/1991 | CN1015144B Carpet of putting design and color together |
| 12/11/1991 | CN1056827A Polyoxometatate intercalated layered double hydroxides |
| 12/10/1991 | US5071630 Phase-stabilization of ammonium nitrate by zinc diammine complexes |
| 11/26/1991 | WO1991018670A1 Polyoxometalate intercalated layered double hydroxides |
| 11/21/1991 | EP0457337A2 Color cathode-ray tube, and surface-treated phosphor and method for its production |
| 11/12/1991 | US5064718 Precipitation in dipersant copolymer of acrylated polyether and acrylate monomer |
| 10/22/1991 | US5059416 Zinc compound delivery system with improved taste and texture |
| 10/16/1991 | CN1014316B Method of preparation for silica compatible with zinc |
| 09/24/1991 | US5051394 Precipitation and roasting |
| 09/24/1991 | US5051206 Reaction of urea with zinc oxide, carbonate or hydroxide to form a blowing agent |
| 09/24/1991 | US5051186 Extraction of solutions with an organic solvent followed by stripping |
| 08/21/1991 | WO1991013120A1 Doped zinc oxide-based pigment |
| 08/13/1991 | US5039452 Metal oxide varistors, precursor powder compositions and methods for preparing same |
| 07/31/1991 | EP0438509A1 Metal oxide dielectric dense bodies, precursor powders therefor, and methods for preparing same. |
| 07/31/1991 | CN1053412A Preparation of zinc oxide by ammonium hydrocarbonate neutralization method |
| 07/16/1991 | US5032374 Sulfiding |
| 07/10/1991 | CN1052834A Low-temp desulfurization method of lithopone |
| 07/09/1991 | US5030426 Biomining of gallium and germanium containing ores |
| 07/02/1991 | US5028410 Hydrometallurgical production of zinc oxide from roasted zinc concentrates |
| 07/02/1991 | US5028403 Metal recovery with monothiophosphinic acids |
| 06/12/1991 | EP0431867A2 Detergent composition |
| 06/11/1991 | CA1284844C Brine treatment using ethylene/carboxylic acid polymers |
| 05/22/1991 | EP0428389A2 Process for producing metal hydroxide sol |
| 05/07/1991 | US5013532 Method for recycling electric arc furnace dust |
| 05/07/1991 | CA1283984C Removal of metals from solutions |
| 04/21/1991 | CA2025161A1 Method for selectively recovering lead, zinc and calcium from materials in which they are contained as oxide or salts not soluble in water |
| 04/16/1991 | CA1282965C Zinc recovery from furnace dust |
| 03/21/1991 | WO1991003424A1 Biomining of gallium and germanium containing ores |
| 03/13/1991 | EP0416078A1 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 02/26/1991 | CA1280603C Cooling system for neck ring and parison mold |
| 02/20/1991 | CN1049277A Pot of zinc-iron alloy |
| 02/20/1991 | CN1049276A Carpets of putting design and colour together |
| 02/12/1991 | US4992248 Method for neutralizing sulfuric acid containing zinc ion |
| 02/07/1991 | DE3925838A1 Recycling zinc and phosphate form phosphating plant sludge - by vaporising in presence of sand and coal at high temp. |
| 02/05/1991 | US4990286 Zinc oxyfluoride transparent conductor |
| 01/30/1991 | CN1048891A Technology for removing lead and cadmium from zincite |
| 01/22/1991 | US4986977 Recovery of useful products from by-products of phosphate conversion coating process |
| 01/02/1991 | EP0405364A1 Conductive needle zinc oxide and process for manufacturing thereof |
| 12/27/1990 | EP0404087A1 White electroconductive zinc oxide |
| 12/26/1990 | CA2019605A1 Needle-like conductive zinc oxide and method for preparing the same |
| 12/21/1990 | CA2019418A1 Method for producing white electrically conductive zinc oxide |
| 12/19/1990 | CN1047841A Method for making zinc oxide |
| 12/13/1990 | WO1990011390A3 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 12/05/1990 | EP0400311A2 Metal recovery with monothiophosphinic acids |
| 12/04/1990 | US4974816 Controlling oxidation |
| 11/29/1990 | WO1990014307A1 Process for manufacturing powdered ceramic oxides |
| 11/28/1990 | EP0399035A1 Method of removing arsenic and/or other amphoteric elements from sludge and solid waste materials. |
| 11/22/1990 | EP0398619A2 Stabilized compositions containing epidermal growth factor |
| 10/31/1990 | EP0395243A2 Inorganic particles |
| 10/27/1990 | CA2015454A1 Inorganic particles |
| 10/10/1990 | CN1045956A Prepn. of basic zinc carbonate and activated zinc oxide by ammonium bicarbonate sedimentation method |
| 10/04/1990 | WO1990011247A1 Zinc oxyfluoride transparent conductor |
| 09/19/1990 | EP0388275A1 Dermatologic and cosmetic composition based on alcoylcarboxamide and zinc salts useful in the treatment of seborrheic dermatitis and/or seborrheic disorders |
| 09/18/1990 | WO1990011390A2 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 09/18/1990 | CA2030547A1 Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations |
| 09/04/1990 | US4954413 Hydrolysis of metal alkoxide or acetylacetone, pigment composite |
| 08/29/1990 | CN1009359B Production technology of zink oxide from smithosonite |
| 08/22/1990 | EP0180900B1 Process for the adjustment of the structure and/or surface characteristics of oxidized materials |
| 08/16/1990 | EP0382709A1 Process for working up acidic iron-containing solutions, in particular used pickling liquors |
| 07/12/1990 | DE3900243A1 Zinc oxide, zinc carbonate and basic zinc carbonate, process for their preparation and their use |
| 07/10/1990 | CA1271310A1 Sulfur recovery process using metal oxide absorbent with reducing gas purge |
| 06/28/1990 | WO1990006820A1 Method of removing arsenic and/or other amphoteric elements from sludge and solid waste materials |
| 05/23/1990 | CN1008118B Prepn. of znso4 and active zno from zinc ore by entire wet-process |
| 04/19/1990 | WO1990003955A1 Metal oxide dielectric dense bodies, precursor powders therefor, and methods for preparing same |
| 04/17/1990 | US4918035 Process for the preparation of complex perovskite type compounds |
| 03/21/1990 | EP0358821A1 White colored deodorizer and process for producing the same |
| 03/21/1990 | CN1040572A Manufacturing method for ceramics and products thereof |
| 02/28/1990 | EP0356136A2 A method for neutralizing sulfuric acid containing zinc ion |
| 02/28/1990 | CN1040013A Method for producing high purity zinc oxide |
| 02/06/1990 | CA1265535A1 Removal of impurities from amines |
| 01/31/1990 | CN1006634B Process for manufacturing zinc sulfate from sicica-rich zine oxide |
| 01/24/1990 | EP0351467A1 White colored deodorizer and process for producing the same |
| 01/16/1990 | US4894357 Process for adjusting the structural and/or surface character of oxides |
| 01/16/1990 | US4894185 Buffers to cause precipitation |
| 11/21/1989 | US4882183 Coating with supersaturated liquid, fluorine additive |
| 11/15/1989 | EP0341312A1 Paste for forming superconductive ceramic film |
| 11/09/1989 | EP0294387A4 Method and apparatus for biological processing of metal-containing ores. |
| 10/11/1989 | EP0336574A1 Producing a layer of transparent conductive zinc oxide |
| 09/26/1989 | CA1261589A1 Predetermined and enhanced densification in sintered metal oxides |
| 09/19/1989 | CA1259491A1 Blowing agent compositions |
| 09/12/1989 | US4865831 Recovery of zinc and ammonium chloride |
| 08/22/1989 | US4859787 Process for the preparation of dialkyldithiocarbamates of multivalent metals |
| 08/22/1989 | CA1258654A1 Method for the removal of monovalent ions from znso.sub.4 electrolyte by electrodialysis |
| 08/16/1989 | CN1034699A Zinc-compatible silica for toothpaste constituent |
| 08/08/1989 | CA1258180A1 Leaching process of zinc and iron containing sulphides |
| 08/03/1989 | DE3801430A1 Process for removing iron(III) from acid zinc salt solutions by solvent extraction |
| 07/18/1989 | US4849202 Sulfur recovery process using metal oxide absorbent with reducing gas purge |
| 07/18/1989 | CA1257522A1 Non-aged inorganic oxide-containing aerogels and their preparation |
| 07/11/1989 | CA1257260A1 Triazolopyrimidine extractants |
| 06/27/1989 | US4842645 Solid solution of zinc-, magnesium-and aluminum-oxides |
| 05/24/1989 | EP0317378A1 Silica for toothpaste compositions, especially compatible with zinc |
| 05/24/1989 | EP0317272A1 Flaky powder of zinc oxide and its composition for external use |
| 05/24/1989 | CN1033077A Method for recovery of metals from chloride solutions |
| 04/18/1989 | US4822880 1,1'-substituted 2,2'-biimidazole or bibenzimidazoles |
| 04/06/1989 | WO1989002872A1 Paste for forming superconductive ceramic film |
| 04/06/1989 | DE3732242A1 Process for treating residues containing non-ferrous metals |