| Patents for C22B 19 - Obtaining zinc or zinc oxide (2,969) |
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| 07/11/2012 | CN102569838A Method for recycling valuable metals in manganese series waste batteries |
| 07/11/2012 | CN102560147A Method for recovering zinc from indium raffinate and zinc scum |
| 07/11/2012 | CN102560124A Treatment method for harmless reclamation of solid waste of heavy metal |
| 07/11/2012 | CN102560087A Method for extracting indium and zinc from high-iron indium-containing zinc calcine and preparing iron oxide |
| 07/10/2012 | CA2528139C Recovery of non-ferrous metals from zinc residues |
| 07/04/2012 | CN102534245A Method for manufacturing high-quality zinc powder |
| 07/04/2012 | CN102534235A Method for recovering valued metals from cobalt-nickel residue obtained through antimony trioxide purification in zinc hydrometallurgy |
| 07/04/2012 | CN102534228A Method for comprehensively recovering valuable elements from high-arsenic-containing copper smelting soot |
| 07/04/2012 | CN102534216A Technique for removing fluorine from zinc hydrometallurgical leach solution |
| 07/04/2012 | CN102534208A Method for alkaline leaching of waste residue containing zinc ferrite or lean zinc ore |
| 07/04/2012 | CN102534205A Method for processing lead-zinc mixed concentrate by using oxidative pressure acid leaching in zinc hydrometallurgy |
| 07/04/2012 | CN102061389B Method for recycling arsenium and enriching heavy metals in arsenium-containing metallurgical sludge |
| 07/04/2012 | CN102021317B Oxidizing roasting process by blending high fluorine chlorine zinc oxide complex material |
| 07/04/2012 | CN101994008B Novel process for separating zinc and cobalt from nickel and cobalt slag from zinc smelting and purification |
| 07/04/2012 | CN101538648B Method for activating ammonia leaching for high calcium-magnesium zinc oxide ore |
| 06/27/2012 | CN102517449A Comprehensive recycling technique of valuable elements in smelting soot |
| 06/27/2012 | CN102517439A Method for selectively roasting and separating tin, zinc and arsenic in compound iron ore containing tin, zinc and arsenic |
| 06/20/2012 | CN202279848U 一种具有炉缸结构的烟化炉 Having a fuming furnace hearth structure |
| 06/20/2012 | CN102510906A Method for producing briquettes, method for producing reduced metal, and method for separating zinc or lead |
| 06/20/2012 | CN102505080A Condenser of rotary kiln |
| 06/20/2012 | CN102505077A Method for recovering valuable elements from cyanide tailings |
| 06/20/2012 | CN102505076A Method for producing zinc powder and battery fluid from battery zinc anode waste and battery waste fluid |
| 06/20/2012 | CN102094126B Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages |
| 06/19/2012 | US8202345 Method of producing non-pyrophoric metallic iron |
| 06/19/2012 | CA2439423C Method for producing large diameter ingots of nickel base alloys |
| 06/13/2012 | CN202272938U 铅锌回收器 Lead and zinc recycler |
| 06/13/2012 | CN102492856A Method for reducing water-soluble zinc in zinc-containing slag produced in zinc hydrometallurgy |
| 06/13/2012 | CN102492855A Method for recovering valuable metal from solid waste material containing zinc |
| 06/13/2012 | CN102492842A Method and equipment for purifying zinc sulfate solution |
| 06/13/2012 | CN101818263B Method for reclaiming zinc-iron-containing dust and sludge |
| 06/07/2012 | WO2012073712A1 Method and device for supplying zinc gas |
| 05/31/2012 | WO2012068621A1 For recovering zinc and/or zinc oxide i |
| 05/31/2012 | WO2012068620A1 Process for recovering zinc and/or zinc oxide ii |
| 05/31/2012 | CA2818555A1 Process for recovering zinc and/or zinc oxide ii |
| 05/30/2012 | CN202246807U Oxygen enrichment side-blown dual-zone smelting furnace |
| 05/30/2012 | CN102477488A 一种分段中和萃取锌的方法 And extraction of zinc in a segmented approach |
| 05/30/2012 | CN101974696B Zinc ash reducing agent for hot-dip galvanizing |
| 05/30/2012 | CN101886170B Production process for isolating fluorine and chlorine by acid extraction during electrolytic zinc production |
| 05/30/2012 | CN101824548B New technology for processing zinc by utilizing upright rotation-type condenser vast electric furnace and device |
| 05/30/2012 | CN101336306B Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 05/23/2012 | CN101974683B Method for producing middle supernatant solution by carrying out two-step pressure acid leaching on high-iron zinc sulfide concentrate |
| 05/16/2012 | CN102459096A Method for recovering water and metals from plating wastewater resulting from washing |
| 05/16/2012 | CN102456889A Waste battery recycling technology |
| 05/10/2012 | WO2012024124A3 Process for separating and recovering metals |
| 05/09/2012 | CN202214404U Acid-resistant high-temperature-resistant high-pressure-resistant cylinder body hole earthenware brick |
| 05/09/2012 | CN202214403U White high aluminum brick |
| 05/09/2012 | CN202214402U Acid-resistant high-temperature-resistant high-pressure-resistant end closure hole earthenware brick |
| 05/09/2012 | CN102443708A Device and method for extracting zinc powder from zinc casting floating slag |
| 05/09/2012 | CN102443701A Clean metallurgic comprehensive utilization method of iron vitriol slags |
| 05/09/2012 | CN101880770B Application of extractant and method for extracting zinc from ammonia solution |
| 05/02/2012 | CN202208736U System for extracting iron particles and zinc powder from steel plant dust |
| 05/02/2012 | CN102433569A Method for electrolyzing high-alkali gangue type low-grade zinc oxide ore leachate treated by ammonia leaching process |
| 05/02/2012 | CN102433449A Distillation furnace for directly preparing high-purity zinc products from hot galvanizing slag |
| 05/02/2012 | CN102433448A Smelting method of lead concentrate containing antimony and zinc |
| 04/18/2012 | CN202195692U 富氧侧吹连续烟化炉 Side-blown continuously enriched fuming furnace |
| 04/18/2012 | CN102417984A 硫酸锌溶液的净化方法及装置 Zinc sulfate solution purification method and apparatus |
| 04/18/2012 | CN102417979A 硫化锌精矿的处理方法 Treatment of zinc sulfide concentrates |
| 04/18/2012 | CN101946026B 从izo废料中回收有价值金属的方法 Recovering valuable metals from scrap method izo |
| 04/18/2012 | CN101748289B 湿法炼锌的中性浸出方法 Neutral leaching method of hydrometallurgy |
| 04/05/2012 | WO2012040829A1 Selective leach recovery of zinc from a composite sulphide ore deposit, tailings, crushed ore or mine sludge |
| 04/05/2012 | CA2812823A1 Selective leach recovery of zinc from a composite sulphide ore deposit, tailings, crushed ore or mine sludge |
| 04/04/2012 | CN202181334U 锌灰分离装置 Zinc ash separation device |
| 04/04/2012 | CN102399997A 一种选冶联合炼锌的方法 A joint approach Zinc Xuanye |
| 04/04/2012 | CN102399995A 一种锌渣挥发窑提取氧化锌铅的方法 A method of extracting zinc dross Kiln lead oxide |
| 04/04/2012 | CN102399986A 一种从含锌铜金精矿焙烧酸浸萃取提铜后液中回收锌的方法 A dip zinc-copper-gold concentrate roasting from the acid solution after extraction extract copper zinc recovery methods |
| 03/28/2012 | CN102392138A Technological method for comprehensively recovering valued metal such as indium and germanium from lead-zinc smoke |
| 03/21/2012 | CN102382990A Method of flotation and direct reduction of comprehensively recovered lead, zinc and ferrum in oxidized lead-zinc ore |
| 03/21/2012 | CN101317067B Unit for processing pulverized lead- and zinc-containing raw material |
| 03/14/2012 | CN202164342U 氧化锌挥发尘的冲击式雾化水沫湿法收尘装置 The impact of volatile zinc oxide dust collecting device wet atomizer Shuimo |
| 03/14/2012 | CN101899580B Zinc concentrate smelting equipment |
| 02/29/2012 | EP1851348B1 Metal vapour condensation and liquid metal withdrawal |
| 02/29/2012 | CN101979684B Process for recovering zinc from hot-dip coating zinc ash |
| 02/28/2012 | US8124036 Additives for mercury oxidation in coal-fired power plants |
| 02/23/2012 | WO2012024124A2 Process for separating and recovering metals |
| 02/23/2012 | CA2807805A1 Process for separating and recovering metals |
| 02/22/2012 | CN202148339U 多功能擦洗机 Multifunction scrubbing machines |
| 02/22/2012 | CN101845551B 从含锌渣中回收有价金属的工艺 Recovering valuable metals from zinc slag process |
| 02/15/2012 | CN102353250A Zinc-cadmium electric heating smelting rotary kiln |
| 02/15/2012 | CN102352445A Zinc leached residue hot acid reduction leaching method |
| 02/08/2012 | CN102345015A Method for removing thallium in process of producing refined cadmium with high-temperature dust generated by acid preparing system |
| 02/01/2012 | CN202131347U 锌蒸发装置 Zinc evaporation plant |
| 02/01/2012 | CN202129449U 一种锌粉的收集装置 A zinc dust collection device |
| 02/01/2012 | CN202129448U 锌粉冷凝器的冷却系统 Zinc condenser cooling system |
| 02/01/2012 | CN102337412A Process for recovering zinc and iron from steel-making dust of waste galvanized plates |
| 02/01/2012 | CN102337391A Process method for recovering indium, germanium and other valuable metals from indium concentrate |
| 02/01/2012 | CN101886180B Method for preparing high-activity zinc oxide from electrolytic zinc leaching slag and lead smelting granulated slag |
| 01/25/2012 | CN102329909A Method for extracting iron particles and zinc powder from dust of steel and iron plant |
| 01/25/2012 | CN102329908A System for extracting iron particles and zinc powder from dust of steel and iron plant |
| 01/25/2012 | CN101914685B Method for preparing metal iron and zinc/zinc oxide from electric furnace dust |
| 01/18/2012 | CN202116628U Zinc ash smelting recovery plant |
| 01/18/2012 | CN102321808A Oxygen-enriched side-blown dual-area smelting furnace |
| 01/18/2012 | CN102321806A Smelting method for processing zinc leaching residue by oxygen-enriched side-blowing furnace |
| 01/12/2012 | US20120006157 Method for melting a solid charge |
| 01/11/2012 | CN102312103A Direct reduction melting method of molten liquid lead contained slag |
| 01/11/2012 | CN102312101A Extractant for treating heavy metals in fly ash and method for extracting heavy metals with the extractant |
| 01/11/2012 | CN102312100A Lead zinc recovering device |
| 01/11/2012 | CN102312095A CRT (cathode ray tube) fluorescent powder processing method |
| 01/11/2012 | CN102312083A Method for extracting zinc indium and recovering iron from high-iron high indium zinc concentrate |
| 01/11/2012 | CN101946027B Method of recovering valuable metals from izo scrap |
| 01/11/2012 | CN101484613B Electrolysis system and method |