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    • 24. 发明申请
    • PRECIOUS METAL RECOVERY
    • 精美的金属回收
    • WO1984002148A1
    • 1984-06-07
    • PCT/AU1983000176
    • 1983-12-01
    • CLARKE, Stuart, Guy
    • C22B11/08
    • C22B15/0091C22B3/44C22B11/08C22B15/0076C22B15/0089Y02P10/234Y02P10/236
    • A process for recovering precious metals from an alkaline cyanide process liquor containing a base metal component. The liquor is treated with precipitant for at least one base metal of said component, the precipitant being selected from mineral acids and reducing agents and being added in an amount sufficient to precipitate a major portion of said at least one base metal and to coprecipitate said precious metal values. The process is exemplified by cyanide leaching a Cu/Ag/Au tailing and a coprecipitating Cu/Ag/Au by adding H2SO4 to bring the pH to 2.5 to 1.0, or by using a sulphite as a reductant; with the base metal component being supplemented by adding Cu or Fe salts to the leach liquor. The precipitate product of precious metal and base metal salts (preferably both as cyanide salts) is filtered, roasted and sold for further refining.
    • 从含有贱金属成分的碱性氰化物处理液中回收贵金属的方法。 所述液体用所述组分的至少一种贱金属的沉淀剂处理,所述沉淀剂选自无机酸和还原剂,并且以足以沉淀所述至少一种贱金属的主要部分并且共沉淀所述贵重金属 金属价值。 该方法的例子是氰化物浸出Cu / Ag / Au拖尾和共沉淀的Cu / Ag / Au,通过加入H 2 SO 4使pH达到2.5至1.0,或通过使用亚硫酸盐作为还原剂; 其中贱金属组分通过向浸出液中加入Cu或Fe盐来补充。 贵金属和碱金属盐(优选氰化物盐)的沉淀产物被过滤,焙烧和出售以进一步精制。
    • 30. 发明申请
    • GOLD RECOVERY SYSTEM AND PROCESS THEREFOR
    • 金回收系统及其工艺
    • WO2009072908A2
    • 2009-06-11
    • PCT/PH2008/000012
    • 2008-12-04
    • OSTREA, Antonio, M.
    • OSTREA, Antonio, M.
    • C22B11/00C22B7/04
    • C22B11/08B03D1/008B03D1/012B03D2201/02B03D2203/02B03D2203/025C22B1/00C22B3/24Y02P10/214Y02P10/234
    • A system of gold recovery whereby the bulk waste component of a gold ore is removed by froth flotation and the resultant concentrate is then treated by conventional cyanide leaching procedures, characterized in that 96 - 98 % of gold from the ore is finally recovered whereby the system includes the steps of: a) Crushing and grinding of the ore; b) Separating the sand from the primary slime; c) Treating said primary slime with sulfhydric collector; d) Secondary grinding of said sand, and separating the secondary slime from the sand; e) Treating said secondary slime with sulfhydric - fatty acid collector; f) Treating said sand with sulfhydric- fatty acid collector; g) Collecting the concentrates from (3), (5) and (6), and separating sand there from (at 20 -30 μ); h) Treating said concentrate with cyanide; i) Passing activated carbon countercurrent to the flow of the concentrate; j) Separating the tails and residue from the loaded carbon; k) Treating the loaded carbon with hot cyanide and caustic solution; and I) Electrowinning the liquor and smelting gold into bullions
    • 一种金回收系统,其中通过泡沫浮选除去金矿石的散装废物组分,然后用常规的氰化物浸出工艺处理所得浓缩物,其特征在于96-98%的黄金来自 最终回收矿石,由此该系统包括以下步骤:a)矿石的破碎和研磨; b)从初级粘泥中分离出沙子; c)用巯基收集器处理所述初级粘泥; d)对所述砂进行二次研磨,并将二次泥与砂分离; e)用巯基脂肪酸收集器处理所述第二粘泥; f)用巯基脂肪酸收集器处理所述沙子; g)收集(3),(5)和(6)中的浓缩物,并从中分离出沙子(20-30μ); h)用氰化物处理所述浓缩物; i)将活性炭逆流浓缩物的流动; j)将尾部和残渣从加载的碳中分离出来; k)用热氰化物和苛性碱溶液处理负载的碳; 和I)电解酒和熔炼黄金成金块