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河南省桐柏县金矿为地表氧化程度较高的矿石,金粒细小,主要赋存于氧化铁矿物中,是一种特殊的矿石类型,暂称“铁-金”矿石,该矿石无论采用全泥氰化法,或采用氢氧基捕收剂浮选含金矿物的集合体,再对浮选精矿氰化,技术指标均不理想。本文提出采用煅烧-氰化法处理这种矿石,效果极为显著,浸出率达97.3%。现把情况简述于下。(一)原矿性质该矿金矿化形式为脉状硅化带。矿物组成以长石、石英为主,含少量硫化物及碳质物,原生矿泥较多。金主要
The gold ore in Tongbai County, Henan Province, is a kind of ore with a high degree of surface oxidation. The gold is small in size and mainly exists in iron oxide minerals. It is a special type of ore and is tentatively called “iron-gold” ore. The whole mud cyanidation method, or the use of hydroxide collector flotation of gold mineral aggregates, and then the flotation concentrate cyanide, the technical indicators are not satisfactory. In this paper, calcination - cyanidation of the ore is proposed, the effect is extremely significant, the leaching rate of 97.3%. Now the situation outlined below. (A) the nature of the mine Gold mineralization in the form of vein siliconized zone. Mineral composition of feldspar, quartz, with a small amount of sulfide and carbonaceous material, more native sludge. Gold main