| Patents for C22B 19 - Obtaining zinc or zinc oxide (2,969) |
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| 01/04/2012 | EP1740731B1 Iron oxide precipitation from acidic iron salt solutions |
| 01/04/2012 | CN102304621A Process for separating out Sn, Bi, Cu and Zn from Sn-Bi waste material |
| 12/14/2011 | CN102277504A 硬锌常压精馏提取锌、铟工艺 Hard zinc atmospheric distillation extraction of zinc, indium process |
| 12/14/2011 | CN101935765B Bottom blowing fuming zinc-extracting method for material containing zinc |
| 12/14/2011 | CN101838736B 湿法炼锌系统净液钴渣中有价金属的湿法分离方法 Hydrometallurgy system net liquid cobalt residue in the wet separation of valuable metals |
| 12/08/2011 | US20110298270 In situ ore leaching using freeze barriers |
| 12/07/2011 | CN202063978U 一种从含锌废渣中湿法提取锌、镉和铜的设备 A wet extraction of zinc, cadmium, zinc and copper from slag equipment |
| 12/07/2011 | CN102268550A 废旧电路板中锌的回收方法 Zinc scrap circuit boards recovery methods |
| 11/30/2011 | CN202054216U 一种用于减少固体渣沉积的容器和一种锌粉置换除镉装置 A method for reducing solid slag deposition container and one except cadmium zinc replacement device |
| 11/30/2011 | CN102260796A 湿法提锌中废渣再次回收的提取除杂方法 Hydrometallurgical extraction method impurity zinc waste recycling again |
| 11/30/2011 | CN101914690B 锌精矿冶炼工艺 Zinc concentrate smelting process |
| 11/30/2011 | CN101824541B 一种湿法炼锌副产物的处理方法 Processing method hydrometallurgy byproducts |
| 11/30/2011 | CN101760613B 含锌矿石的浸出方法 Zinc ore leaching method |
| 11/30/2011 | CN101715492B 用于制备金属锌的含锌化合物的直接熔炼 Direct smelting of zinc used in the preparation of zinc compounds |
| 11/23/2011 | EP2387624A2 Metal recovery process |
| 11/23/2011 | CN102257169A Hydrometallurgical method for the reuse of secondary zinc oxides rich in fluoride and chloride |
| 11/23/2011 | CN102250362A Technology for producing ammonium lignosulfonate from wheat bran |
| 11/22/2011 | US8062614 Methods for improving the recovery of metal leaching agents |
| 11/17/2011 | WO2011141036A1 Chemical pretreatment and preheating of steel scrap |
| 11/16/2011 | CN102242278A Method for manufacturing zinc and aluminum iron silicon type deoxidizer in vacuum by utilizing hot-dipping aluminum slag |
| 11/16/2011 | CN102242266A Process for recovering cobalt, copper, zinc and manganese in manganese chloride residual liquid |
| 11/16/2011 | CN102242262A Method for treating low-grade zinc oxide ore by using weakly alkaline amino acid salt system |
| 11/09/2011 | CN101392328B Wet zinc metallurgical ultrasound purification method, device and use |
| 11/03/2011 | WO2011135991A1 Valuable metal recovery method |
| 11/02/2011 | EP2382332A1 Hydrometallurgical method for the reuse of secondary zinc oxides rich in fluoride and chloride |
| 11/02/2011 | CN102230090A Lead-zinc integrated smelting furnace, and method for recovering lead and zinc |
| 11/02/2011 | CN102230080A Method for zinc raw material dechlorination in zinc hydrometallurgy |
| 11/02/2011 | CN101428278B Method for separating zinc-containing substance of blast furnace dry method dust separation ash |
| 10/26/2011 | CN101698904B Method for extracting sulfide minerals of nonferrous metals and method for recycling sulfur in extracted filtered residues thereof |
| 10/26/2011 | CN101617067B Method of recovering valuable metal from scrap containing conductive oxide |
| 10/25/2011 | US8043408 Direct smelting of zinc bearing compounds to produce metallic zinc |
| 10/19/2011 | CN102220493A Method and device for purifying zinc sulfate solution based on action of cavitation effect |
| 10/19/2011 | CN102220480A Method for removing fluorine and chlorine from zinc oxide smoke dust by microwave roasting |
| 10/12/2011 | EP2373822A2 System and method for wastewater treatment |
| 10/12/2011 | EP2373821A2 System and method for wastewater treatment |
| 10/12/2011 | CN101351567B Method for recovering rare metals in zinc leaching process |
| 10/06/2011 | WO2011122985A1 Line for extraction of brass, zinc oxide and copper oxide from slag |
| 10/06/2011 | WO2011122984A1 Facility for extracting brass and oxides of zinc and copper from wastes |
| 10/06/2011 | WO2011122983A1 Method for extracting brass and oxides of zinc and copper from slag |
| 10/05/2011 | CN102206760A Method for haydrometallurgy of zinc |
| 10/05/2011 | CN102206758A Method and equipment for wet extraction of zinc, cadmium and copper from zinc-containing waste residue |
| 09/22/2011 | WO2011113997A1 Reactor and a method of purifying a process solution |
| 09/22/2011 | CA2789235A1 Reactor and a method of purifying a process solution |
| 09/21/2011 | EP1565585B1 Process for extracting zinc |
| 09/21/2011 | CN102191375A Technology for recycling gold and silver through direct flotation under high Zn<2+> concentration of zinc hydrometallurgy acid leaching pulp |
| 09/21/2011 | CN102191371A Method for separating iron and zinc in traditional zinc iron and zinc process |
| 09/21/2011 | CN101812594B Method for simultaneously smelting hydrolysis slag, pyrite and zinc kiln slag by using blast furnace |
| 09/20/2011 | US8021459 Method and apparatus for controlling metal separation |
| 09/14/2011 | CN201971882U 用于分离冶金矿浆中硫浮渣的溜槽 For the separation of sulfur metallurgical dross pulp chute |
| 09/14/2011 | CN201971878U 湿法炼锌工艺中防止镉复溶的砷盐净化除镉装置 Hydrometallurgy process to prevent the reconstitution of arsenic cadmium salt purification devices in addition to cadmium |
| 09/14/2011 | CN201971877U 一种除镉沸腾净化槽系统的加料装置 One kind except cadmium boiling purification tank system charging device |
| 09/14/2011 | CN201971876U 一种硫酸锌溶液净化装置 A zinc sulfate solution purification device |
| 09/14/2011 | CN102181664A Method for recovering zinc by smelting zinc ash and smelting device for implementing method |
| 09/14/2011 | CN102181663A Method for producing zinc powder by treating zinc-containing miscellaneous material through electric furnace |
| 09/14/2011 | CN102181654A Method for recovering zinc, silver and copper from zinc leaching residue |
| 09/14/2011 | CN102181631A Method for producing electrolytic zinc by using cobalt-rich raw material |
| 09/14/2011 | CN101680054B Method for the valorisation of zinc- and sulphate-rich residue |
| 09/01/2011 | WO2011106012A1 Apparatus and method for treating exhaust gas |
| 09/01/2011 | CA2791007A1 Apparatus and method for treating exhaust gas |
| 08/31/2011 | CN102168918A Power frequency cored induction electric furnace and method for controlling oxygen content |
| 08/31/2011 | CN102168182A Dezincification method for high-temperature direct reduction of zinc-containing powder carbon-bearing agglomerates |
| 08/31/2011 | CN102168181A Horizontal type pressure leaching kettle and zinc sulfide concentrate leaching method using same |
| 08/31/2011 | CN101760612B Method for recovering bismuth from secondary zinc oxide slag |
| 08/24/2011 | CN102162038A Application of silicon carbide material in metallic zinc powder production furnace |
| 08/24/2011 | CN102162035A Vacuum distillation process for extracting silver from silver zinc slag |
| 08/24/2011 | CN102162032A Method for recovering lead and silver from purification slag of zinc hydrometallurgy |
| 08/17/2011 | CN102154562A Composite purifying box for zinc and zinc alloy melts |
| 08/17/2011 | CN102154552A Method for removing chlorine from chlorine-containing zinc sulfate solution by using bismuth trioxide |
| 08/10/2011 | CN201924060U 一种冷却罐 A cooling tank |
| 08/10/2011 | CN102146522A Second-generation crude zinc smelting kiln |
| 08/10/2011 | CN102146517A Composite purification method for zinc and zinc alloy |
| 08/10/2011 | CN101760632B Method for recovering zinc from zinc sulfate solution |
| 08/10/2011 | CN101713025B Method for wet separation of mixed solution containing nickel and zinc |
| 08/03/2011 | CN102140580A Multi-metal recycling method of electric furnace tin-smelting dust |
| 08/03/2011 | CN101565776B Method for eliminating extraction and emulsification of amine and phosphorus organic reagents |
| 07/27/2011 | CN102134655A Method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation |
| 07/27/2011 | CN102134654A Treatment method of zinc sulfide ore concentrates |
| 07/27/2011 | CN101072885B Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 07/26/2011 | CA2480865C Acid beneficiation of ore |
| 07/21/2011 | DE102008016323B4 Saure Entzinkung Acid dezincification |
| 07/20/2011 | CN102127650A Zinc alloy flux |
| 07/20/2011 | CN102127645A Technological method for extracting zinc by roasting blast furnace gas mud by virtue of rotary kiln |
| 07/20/2011 | CN101608265B Recovering process of associated metal zinc in gold finished ore |
| 07/19/2011 | CA2674069C Method of recovering valuable metal from scrap containing conductive oxide |
| 07/07/2011 | DE102008009352B4 Zinkrecycling Zinc Recycling |
| 07/05/2011 | US7972898 Process for making doped zinc oxide |
| 06/30/2011 | WO2011076995A1 Method for utilising sulphur-containing waste generated in leaching of sulphide concentrates |
| 06/30/2011 | US20110154950 Burner and Method for Processing Oxidizable Materials |
| 06/29/2011 | CN102108447A Technology for removing iron and arsenic from leaching solution of purification slag generated in zinc hydrometallurgy |
| 06/23/2011 | WO2011051674A3 Method and apparatus for condensing metal vapours using a nozzle and a molten collector |
| 06/22/2011 | CN102105608A Production method and device of zinc dust |
| 06/22/2011 | CN102102153A Method for producing zinc oxide and iron by treating zinc ore (slag) in reduction rotary kiln |
| 06/22/2011 | CN102102148A Recycling method of indium raffinate |
| 06/22/2011 | CN101613796B Method for separating metal elements of zinc-nickel-cadmium-containing materials |
| 06/16/2011 | WO2011069221A1 Physical-chemical process for the recovery of metals contained steel industry residues |
| 06/16/2011 | DE102009058011A1 Plant for continuously removing a metallic or organic coating from steel scraps, comprises modules arranged to each other, where each module comprises a basin with a solution for removing the coating, and conveyor belts |
| 06/15/2011 | EP2331719A1 Method for the selective acidic dezincification of steel scrap |
| 06/15/2011 | CN102094126A Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages |
| 06/15/2011 | CN101736166B Method for extracting zinc from refractory zinc core in hydrometallurgy by dispergator |
| 06/08/2011 | CN102089448A Briquette manufacturing method, reductive metal manufacturing method, and zinc or lead separation method |