论文部分内容阅读
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％。
A new type of gold ore in a district was studied. The results show that there is no single gold-bearing ore in the ore, the general beneficiation method is difficult to effectively enrich the gold, but the gold-bearing ore has a good impregnability. The proposed waste-free whole mud cyanidation leaching - zinc powder replacement process, when the grinding particle size of -200 mesh 90%, adding sodium cyanide 0.8kg / t. Lime 2.5kg / t for leaching, deoxygenation after 3min adding zinc powder 150kg / L. Lead acetate 40kg / L replacement, the leaching rate can reach 95.70%, the total gold recovery was 95.14%.