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银主要产自铅、锌、铜、镍矿中。世界45％,苏联50％以上的银来源于铅锌多金属矿床中,其次是铜矿和铜镍矿及金矿床中。我国也是如此,三分之二的银是从伴生铅锌矿中回收的。银金矿以及银金和铜、铅、锌等多金属矿共生的矿石,常采用浮选法进行回收。本文介绍某矿床氧化带矿石中银金的浮选实例,并着重介绍羧甲基纤维素浮选银金的效果及高浓度低矿液面浮选银金的工艺。试样以羧甲基纤维素和氢氧化钠为调整剂,丁基黄药和二号油为捕收剂和起泡剂,进行银浮选,银金粗精矿用丁基黄药进行精选。获得了矿物回收率很高(90.04％)的银金精矿,含银16005克/吨,回收率63.55％;含金57.75克/吨,回收率80.65％。铂族
Silver is mainly produced from lead, zinc, copper, nickel ore. 45% of the world. More than 50% of the silver in the Soviet Union comes from lead-zinc polymetallic deposits, followed by copper and copper-nickel deposits and gold deposits. The same is true in our country, two thirds of the silver is recovered from associated lead-zinc mine. Silver and gold and silver and gold and copper, lead, zinc and other polymetallic ore symbiotic ore, often using flotation method for recycling. In this paper, an example of silver flotation in the ore belt of an ore deposit is introduced, and the effect of carboxymethylcellulose flotation silver and flotation process of silver and gold at high concentration and low mineral concentration are introduced emphatically. Samples of carboxymethyl cellulose and sodium hydroxide as a regulator, butyl xanthate and the second oil collector and foaming agent for silver flotation, silver crude gold concentrate with butyl xanthate selected. The silver ore concentrate with a high recovery rate of mineral (90.04%) was obtained. The recovery rate was 63.55% with 16005 g / t silver and 57.75 g / t gold with the recovery of 80.65%. Platinum group