含砷复杂金精矿焙砂氰化提金工艺研究

打开文本图片集

关键词：金精矿；氰化浸出；保护碱；金浸出率

中图分类号：TF831 文献标识码：A 文章编号：1008-9500（2025）08-0007-04

DOI： 10.3969/j.issn.1008-9500.2025.08.002

Research on Cyanide Extraction of Gold from Roasted Ore of Complex Gold Concentrates Containing Arsenic

HANShaoqi’，ZHANG Gaomin²，SU Weichao²，DENG Changlong²，HAN Le2 ，LIYun’，YUANChaoxin 1.BGRIMMTechnology Group，Beijing100160，China;2.Qinghai Dachaidan MiningCo.，Ltd.，Haixi816299，China）

Abstract：Intheprocess ofcyanide extractionofarseniccontainingcomplexgoldconcentrates，adding protectivealkaliin advancefor preleaching can efectively improve theleaching rateof gold.Acyanide leaching processtudyis conducted onthe roastedoreofacomplexarseniccontaininggoldconcentrate，andthe selectionof protectivealkali is studiedunder optimizedleaching conditions.Theexperimentalresults showthatcomparedwithcalciumoxide，usingammoniumcarbonate asa protectivebase for pretreatment can significantly shortenthe cyanide leaching time of the roasted ore.

Keywords： gold concentrate; cyanide leaching;protective alkali; gold leaching rate

随着易处理的金矿资源逐步减少，复杂金精矿的开发与利用日益受到关注[1-2]。（剩余3492字）