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METHOD OF GOLD EXTRACTION FROM SULFIDE AND ARSENO-SULFUR CONCENTRATES

机译:从硫化物和砷硫精矿中提取金的方法

摘要

FIELD: metallurgy.;SUBSTANCE: invention relates to noble metals metallurgy and can be used for selective gold extraction from gravitational and flotation concentrates of gold-extraction factories at finishing of gold-bearing products up to requirements of parting. Method of gold extraction from sulfide and arseno-sulfur concentrates into lead alloy includes loading of concentrate into alkali melt (NaOH) and lead at the temperature 400-550°. Additionally and after it is implemented intensive mechanical agitation by blade mixer of the system concentrate - alkali melt - lead melt with gold extraction by lead into lead alloy. Separation of lead alloy is implemented by means of sedimentation. At the stage of concentrate loading it is simultaneously fed industrial oxygen in amount 1.5-2.7% wt from weight of loaded concentrate at loading duration, corresponding 25-30% of extraction duration.;EFFECT: excluding of effervescence of solid-liquid system of the process.;2 ex
机译:贵金属冶金技术领域本发明涉及贵金属冶金,可用于从金提取产品的重力和浮选精矿中选择性提取金,以完成含金产品的精加工。从硫化物和砷-硫精矿中提取金的方法为铅合金,包括将精矿加载到碱熔液(NaOH)和铅中的温度为400-550°。另外,在通过叶片搅拌机进行系统强烈的机械搅拌之后,浓缩液-碱熔体-铅熔体,并通过铅将金提取到铅合金中。铅合金的分离是通过沉降的方式进行的。在浓缩物装载阶段,在装载期间,同时向其供应工业氧气,其量为装载浓缩物重量的1.5-2.7%wt,相当于萃取时间的25-30%。效果:不包括浓缩液的泡腾系统。过程。; 2 ex

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