| Patents for C01G 9 - Compounds of zinc (4,420) |
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| 06/21/1994 | US5322642 Method of manufacturing semiconductors from homogeneous metal oxide powder |
| 06/14/1994 | US5320800 Nanocrystalline ceramic materials |
| 06/07/1994 | CA1329989C Method and apparatus for biological processing of metal-containing ores |
| 06/01/1994 | EP0643669A4 Zinc phosphorous oxide and zinc arsenic oxide compositions. |
| 06/01/1994 | EP0599278A1 Process for the preparation of partially-substituted fluorosilane |
| 05/31/1994 | US5316697 Conductive, particulate, fluorine-doped zinc oxide |
| 05/25/1994 | EP0598284A1 Method for preparing electrically-conductive needle-like zinc oxide |
| 05/24/1994 | CA2019618C Zinc compound delivery system with improved taste and texture |
| 05/18/1994 | EP0597380A1 Method for preparing electrically-conductive zinc oxide |
| 05/17/1994 | US5312614 Method for producing white electrically conductive zinc oxide |
| 04/19/1994 | US5304889 Coating of double oxides of zinc and aluminum; preventing copper contamination |
| 04/12/1994 | CA1328353C Recovery of zinc from zinc bearing sulphidic ores and concentrates by controlled oxidation roasting |
| 04/07/1994 | DE4301042C1 Treatment the sludge obtained from zinc leachant - to recover zinc, iron and manganese |
| 03/16/1994 | EP0438509B1 Metal oxide dielectric dense bodies, precursor powders therefor, and methods for preparing same |
| 03/09/1994 | CN1083538A Technology and equipment for preparing zinc-oxide by use of plasma method |
| 03/02/1994 | CN1082939A Compositions and methods for improving the wetting of particulates |
| 02/02/1994 | EP0580912A1 Process for making metal alloys for obtaining a homogenous powder of oxides of said metals and their applications for obtaining semi-conductors and super-conductors |
| 01/20/1994 | DE4223300A1 Finely-divided zinc oxide prodn. from zinc salt, esp. sulphate soln. - by adding soln. to part of soda soln. and adding rest of soda soln. to ppte. basic carbonate without co-pptn. of magnesium |
| 01/18/1994 | US5279809 Mixing zinc-tin oxide; heating to oxidize |
| 01/18/1994 | US5279743 Separation of solid phase manganese dioxide from liquid phase chloric acid solution |
| 01/12/1994 | CN1080651A Green-luminescing zinc sulphide and cathode ray tube provided with this zinc sulphide |
| 01/06/1994 | WO1994000606A1 Production of metals from minerals |
| 01/05/1994 | CN1080265A Preparation of high-active zinc oxide by improved all-wet method of ammonium bicarbonate |
| 12/22/1993 | EP0574548A1 Method and apparatus for the purification and control of the composition of non-stoichiometric and stoichiometric crystalline compounds |
| 12/15/1993 | EP0573610A1 Synthetic spinels and processes for making them. |
| 12/08/1993 | EP0572972A1 Probe for scanning tunneling microscope and manufacturing method thereof |
| 11/30/1993 | CA1324724C Process for the removal of cobalt impurities from zinc sulphate solutions |
| 11/23/1993 | US5264284 Fibrous composite metal hydroxide and process for the production thereof |
| 11/18/1993 | EP0570063A1 Green luminscent zinc sulfide |
| 11/03/1993 | EP0568379A2 Compositions and method for improving the wetting of particulates |
| 10/27/1993 | CN1077753A Process for preparing active zinc oxide and high purity zinc oxide |
| 09/21/1993 | US5246899 Simplified preparation of hydrotalcite-type clays |
| 09/08/1993 | EP0559590A1 Process for obtaining metallic hydroxides |
| 08/26/1993 | DE4204892A1 Iron and zinc salts sepn. from acid etching soln. - by using organic extn. agent to remove zinc salt and sulphate ion producing agent to convert salt into insol. zinc sulphate, for pure prods. |
| 08/25/1993 | EP0557089A1 Sunscreen agents containing layered double hydroxides |
| 08/18/1993 | CN1075301A Method for production of active zinc oxide from ammonium chloride and zinc hypooxide |
| 07/22/1993 | WO1993014030A1 Method for the recovery of zinc oxide |
| 07/07/1993 | EP0550415A2 Polyoxometalate intercalated layered double hydroxides |
| 06/23/1993 | EP0341312B1 Paste for forming superconductive ceramic film |
| 06/02/1993 | EP0544503A1 Flame-retardant aid, process for the production thereof, and flame-retardant resin composition |
| 06/02/1993 | EP0544502A1 Anti-microorganism agent and anti-microorganism resin or rubber composition |
| 05/19/1993 | EP0542291A1 Zinc oxide crystal and method of producing same |
| 05/12/1993 | EP0541329A1 Composite metal hydroxide and process for the production thereof |
| 05/04/1993 | US5208004 Method for the recovery of zinc oxide |
| 05/04/1993 | CA1317088C Hydrometalurgical production of zinc oxide from roasted zinc concentrates |
| 04/21/1993 | EP0399035B1 Method of removing arsenic and/or other amphoteric elements from sludge and solid waste materials |
| 04/20/1993 | US5204084 Hydrometallurgical production of zinc oxide from roasted zinc concentrates |
| 04/14/1993 | EP0536879A1 Simplified preparation of hydrotalcite-type clays |
| 04/13/1993 | US5201985 Method and apparatus for the purification and control of the composition of non-stoichiometric and stoichiometric crystalline compounds |
| 04/07/1993 | EP0535972A1 Method of preparing sunscreens |
| 04/07/1993 | EP0535971A1 Oil dispersions of zinc oxide |
| 04/06/1993 | US5200041 Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations |
| 03/31/1993 | EP0534473A2 Solar cell |
| 03/30/1993 | US5198025 Heat resistant |
| 01/02/1993 | CA2072714A1 Hydrometallurgical production of zinc oxide from roasted zinc concentrates |
| 12/16/1992 | EP0517773A1 Doped zinc oxide-based pigment |
| 12/15/1992 | US5171364 Slurrying with alkali metal hydroxide and dopant salt, adjustment ph, aging, separating, washing, drying, firing |
| 12/15/1992 | CA1311493C Process for the preparation of dialkyldithiocarbamates of multivalent metals |
| 12/09/1992 | EP0517448A1 Fibrous composite metal hydroxide and process for the production thereof |
| 11/29/1992 | CA2055727A1 Process for preparing conductive acicular zinc oxide |
| 11/21/1992 | WO1992020444A1 Zinc phosphorous oxide and zinc arsenic oxide compositions |
| 11/21/1992 | CA2103370A1 Zinc phosphorous oxide and zinc arsenic oxide compositions |
| 11/04/1992 | CN1065847A Process for producing active zinc oxide |
| 10/28/1992 | CN1065685A Zinc oxide preparing process by ammonia method |
| 10/12/1992 | EP0517773A4 Doped zinc oxide-based pigment. |
| 09/22/1992 | US5149456 Detergent compositions comprising a hydrotalcite-like material for reducing colorant migration |
| 09/17/1992 | WO1992015731A1 Method and apparatus for the purification and control of the composition of non-stoichiometric and stoichiometric crystalline compounds |
| 09/10/1992 | DE4107287A1 Multistage continuous pptn. of metal ions from alkaline solns. - using carbon di:oxide gas to form seed crystals which are converted in following stages to filtrate size by addn. of further carbon di:oxide |
| 09/08/1992 | US5145719 Method for coating surface of fine particles with a layer of fine metal oxide powder |
| 09/03/1992 | DE4106403A1 Verbindungen einer bestimmten zusammensetzung, verfahren zu deren herstellung und deren verwendung Compounds of a given composition, to processes for their preparation and their use |
| 09/02/1992 | WO1992015525A1 Hydroxide compounds of specific composition, method for preparing them and their use |
| 08/26/1992 | WO1992014546A1 Synthetic spinels and processes for making them |
| 08/12/1992 | EP0498566A1 Composite metal hydroxide and its use |
| 08/04/1992 | US5135652 From a zinc sulfate solution with a mixture of an organic substituted phosphoric acid and organic substituted thiophosphinic acid |
| 07/21/1992 | US5132104 Pissolving zinc compound in solution containing ammonium ion and carbonate and/or hydrogen carbonate ion, adjusting pH to 7-9.5 to precipitate product; useful as filler or precursor of needle-like electroconductive zinc oxide |
| 07/16/1992 | DE4100911A1 Sepg. zinc from pyrolusite by washing with dil. mineral acid - also giving manganese di:oxide useful in pigment, oxidant and ferrite mfr. and e.g. zinc sulphate |
| 07/15/1992 | EP0294387B1 Method and apparatus for biological processing of metal-containing ores |
| 07/14/1992 | US5130298 Stabilized compositions containing epidermal growth factor |
| 07/07/1992 | US5128081 Vaporization, condensation, oxidation |
| 06/30/1992 | US5126081 Heat treatment, isostatic pressure; foil wrapped body |
| 06/17/1992 | CN1062004A Process for preparing zinc oxide |
| 06/16/1992 | US5122357 Crystalline microporous metal oxysulfide compositions |
| 06/11/1992 | WO1992009530A1 Precipitation of heavy-metal ions |
| 06/10/1992 | CN1061763A Process for prodn. of zinc chloride |
| 06/09/1992 | US5120698 Catalyst, absorbers, petroleum separation |
| 06/02/1992 | US5118478 Extractrion process for removing and recovering metals from aqueous solutions |
| 05/27/1992 | DE4037326A1 Abtrennung von schwermetallionen Removal of heavy metal ions |
| 05/20/1992 | EP0486182A1 Zinc oxide sintered body, and production and application thereof |
| 05/20/1992 | CN1016680B Method for producing of high pure zinc oxide |
| 05/05/1992 | US5110586 White colored deodorizer and process for producing the same |
| 04/29/1992 | EP0482444A1 Process for preparing zinc oxide pigments doped with metal oxides |
| 04/28/1992 | US5108979 Synthetic spinels and processes for making them |
| 04/07/1992 | US5102650 Neutralizing an aqueous solution containing an alkali zincate compound and a water soluble tin, gallium, indium or aluminum compound, coprecipitation of zinc and metal oxides, and calcining |
| 04/01/1992 | EP0463079A4 Zinc oxyfluoride transparent conductor |
| 03/10/1992 | US5094693 Discoloration inhibition |
| 03/03/1992 | US5093099 Flaky powder of zinc oxide and its composition for external use |
| 02/26/1992 | EP0289582B1 Method for preparing a metal oxide varistor precursor powder |
| 02/18/1992 | US5089248 Production of metallic oxides |
| 02/18/1992 | CA1295807C Coprecipitation method for the manufacture of zinc oxyde based doped powders |
| 02/06/1992 | WO1992001631A1 Method for producing doped zinc oxide powder, and powder obtained |