摘要
浮选金精矿氰化前碱预处理，使氰化钠耗量由６ｋｇ／ｔ降至３１ｋｇ／ｔ。氰化浸出前加碳质物的纯化剂煤油２～４ｋｇ／ｔ，金的浸出率由９２５１％增至９３１７％。含铜金精矿用氨氰化处理，铜的浸出率由２９４１％降至２３５１％，氰化钠耗量由４５ｋｇ／ｔ降至４２５ｋｇ／ｔ。金精矿细磨氰化工艺中，采用适宜的搅拌强度，可以减少碱及氰化物的耗量。
Carrying out alkaline pretreatment of gold flotation concentrate prior to cyanidation,the consumption of sodium cyanide decreased from 6 to 3.1kg/t.Aiding carbonaceous passivator—kerosene prior to cyanide leaching,the gold leaching rate increased from 92.51% to 93.17%.Treating copper bearing gold concentrate by ammonium cyanide,the copper leaching rate decreased from 29.41% to 23.51% and the consumption of sodium cyanide decreased from 4.5 to 4.25kg/t.Selecting proper intensity of agitation in the fine grinding and cyanidation of gold concentrate ,the consumption of alkali and cyanide was reduced.
出处
《黄金》
CAS
北大核心
1998年第11期37-39,共3页
Gold
关键词
金精矿
细磨
氰化
预处理
搅拌强度
gold concentrate
fine grinding
cyanidation
pretreatment
