工程科学学报2017，Vol.39Issue(5)：676-682,7.DOI:10.13374/j.issn2095-9389.2017.05.005
高硫卡林型金精矿中碳质表征及其对生物预氧化提金的影响
Characterization of carbonaceous matter in high-sulfur Carlin-type gold concentrate and its influence on gold recovery in bio-pretreatment product
摘要
Abstract
To study the effect of carbonaceous matter on gold recovery in bio-pretreatment followed by a cyanide leaching process, the carbonaceous matter was characterized in high-sulfur Carlin-type gold flotation concentrate by gas chromatography-mass spectrome-try ( GC-MS) , Raman spectroscopy, Preg-robbing index tests, and gold loading tests. The results indicate the presence of kerogen in the concentrate, which interferes with the gold extraction due to its strong gold adsorption. Both the Raman and PRI tests show a strong preg-robbing capacity of the carbonaceous matter in the samples. In addition, activated carbon in the cyanidation process of the bio-oxidized product could decrease by approximately 10. 14% the adsorption of exposed gold by the carbonaceous matter. A final gold recovery rate is 80. 17%.关键词
劫金碳质/有机碳/拉曼比/劫金指数/生物预氧化Key words
preg-robbing carbonaceous matter/organic carbonaceous matter/Raman ratio/preg-robbing index/bio-pretreatment分类
矿业与冶金引用本文复制引用
丘晓斌,温建康,黄松涛,杨洪英,武彪,刘美林..高硫卡林型金精矿中碳质表征及其对生物预氧化提金的影响[J].工程科学学报,2017,39(5):676-682,7.基金项目
国家"十二五"科技支撑计划资助项目(2012BAB10B08) （2012BAB10B08）
国家高技术研究发展计划资助项目(2012AA060501) （2012AA060501）
