摘要
对某区新类型金矿石进行了选冶试验研究。结果表明，矿石中无单独的载金矿物，一般的选矿方法难以使金有效富集，但这种含金矿石具有良好的可浸性。对所推出的无废全泥氰化浸出－锌粉置换工艺流程，磨矿粒度为－２００目占９０％时，加入氰化钠０．８ｋｇ／ｔ．石灰２．５ｋｇ／ｔ进行浸出，贵液脱氧３ｍｉｎ后加入锌粉１５０ｋｇ／Ｌ．醋酸铅４０ｋｇ／Ｌ进行置换，可使浸出率达到９５．７０％，金的总回收率为９５．１４％。
The test of beneficiation-metallurgy was carried out with a new type gold ore.For gold ores without soparate gold-carriers, it is usually difficult to concentrate gold effec-tively by using conventional mineral processing methods. Howerer,the gold ore has goodleachability,and the authors propose the proeess flowsheet of wasteless cyanide leaching-zinc powder replacement. At a grind of 90%minus 200 mesh,its slime is leached with sodi-um cyanate (0. 8 kg/t)and lime(2. 5 kg/t),and the gold-containing solution obtained is de-oxided for 3 min. and replaced with zinc powder(150 mg/L)and lead acetate(40 mg/L),obtaining a leaching rate of 95.7%and an overall recovery of 95. 14%.
出处
《矿冶工程》
CAS
CSCD
北大核心
1995年第1期21-24,共4页
Mining and Metallurgical Engineering
