收稿日期: 2014-07-28
修回日期: 2014-09-05
网络出版日期: 2015-01-14
基金资助
国家自然科学基金项目“载金黄铁矿化学溶解特性与生物促进机制”(编号:51474075)和福建省杰出青年基金项目“低品位难处理金矿生物堆浸基础理论研究”(编号:2011J0103)联合资助.
Extraction of Gold from Refractory Gold Concentrate by Roasting-Cyanide Leaching
Received date: 2014-07-28
Revised date: 2014-09-05
Online published: 2015-01-14
吴智 , 黄中省 , 臧宏 , 衷水平 , 伍赠玲 . 某难处理金精矿焙烧—氰化提金工艺试验研究[J]. 黄金科学技术, 2014 , 22(6) : 77 -81 . DOI: 10.11872/j.issn.1005-2518.2014.06.077
Focusing on the refractory gold concentrate in northwest region,the technology of roasting-cyanidation was studied and the optimized condition was obtained.Experimentation results show that the removal rate of S and As are 99.99% and 52.56% respectively,and the gold leaching rate is above 88.92% under these conditions:-0.043 mm was about 52.85%,the one stage roasting with the temperature of 450 ℃ and time of 1 hour,two stages roasting with the temperature of 700 ℃ and time of 0.5 hour.The best cyanide-leaching parameters are initial densities of sodium cyanide is 0.5‰,the liquid-solid ratio is 4 and time of 24 hours.
[1] 殷书岩,杨洪英.难处理金矿加压氧化预处理技术及发展[J].贵金属,2008,29(1):56-59.
[2] 王帅,李超,李宏煦.难浸金矿预处理技术及其研究进展[J].黄金科学技术,2014,22(4):129-134.
[3] 许晓阳.碳质难处理金矿浸出工艺研究进展[J].黄金科学技术,2013,21(1):82-88.
[4] 薛光,于永江.焙烧—氰化法从铜精矿中提取金银铜的试验研究[J].黄金科学技术,2013,21(2):86-89.
[5] 卢宜源,宾万达.贵金属冶金学[M].长沙:中南大学出版社,2004.
[6] 李新春,郭持皓.新疆阿希金矿含砷难处理金精矿两段焙烧工艺[J].有色金属工程,2014,(1):42-44.
[7] 李大江,王云,袁朝新.含砷难处理精金矿预氧化工艺对比试验[J].有色金属:冶炼部分,2012,(5):40-42.
[8] 衷水平.含铜处理金精矿焙烧—酸浸—氰化提金工艺研究[J].黄金科学技术,2013,21(2):82-85.
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