贵金属
貴金屬
귀금속
Precious Metals
2015年
3期
19-25
,共7页
有色金属冶金%锌浸出渣%赋存状态%银浮恒
有色金屬冶金%鋅浸齣渣%賦存狀態%銀浮恆
유색금속야금%자침출사%부존상태%은부항
non-ferrous metallurgy%zinc leaching residues%occurrence%flotation%condition optimization
传统锌精矿伴生银回收,均是从挥发窑渣中进行,由于矿物性质变化,导致银无法有效回收.进行了从锌酸浸出渣中浮恒回收银的研究,解决了锌精矿中伴生银回收的问题.某湿法炼锌浸出渣含Ag 350 g/t,Au<0.01 g/t,Pb 3.87%,Zn 17.45%,Cu 1.38%,银主要以自然银存在,占60.13%.采用高效捕收剂HT-1#、起泡剂HT-2#进行浮恒,经过一粗四精三扫工艺,获得银精矿产率4.39%,含银6616 g/t,银回收率82.98%,取得良好的经济技术指标.
傳統鋅精礦伴生銀迴收,均是從揮髮窯渣中進行,由于礦物性質變化,導緻銀無法有效迴收.進行瞭從鋅痠浸齣渣中浮恆迴收銀的研究,解決瞭鋅精礦中伴生銀迴收的問題.某濕法煉鋅浸齣渣含Ag 350 g/t,Au<0.01 g/t,Pb 3.87%,Zn 17.45%,Cu 1.38%,銀主要以自然銀存在,佔60.13%.採用高效捕收劑HT-1#、起泡劑HT-2#進行浮恆,經過一粗四精三掃工藝,穫得銀精礦產率4.39%,含銀6616 g/t,銀迴收率82.98%,取得良好的經濟技術指標.
전통자정광반생은회수,균시종휘발요사중진행,유우광물성질변화,도치은무법유효회수.진행료종자산침출사중부항회수은적연구,해결료자정광중반생은회수적문제.모습법련자침출사함Ag 350 g/t,Au<0.01 g/t,Pb 3.87%,Zn 17.45%,Cu 1.38%,은주요이자연은존재,점60.13%.채용고효포수제HT-1#、기포제HT-2#진행부항,경과일조사정삼소공예,획득은정광산솔4.39%,함은6616 g/t,은회수솔82.98%,취득량호적경제기술지표.
In the traditional recycling of silver zinc smelting slag, most silver is recovered from rotary kiln slag. However, silver can not effectively be recovered, due to changes of the mineral properties. A process involving the recovery of silver directly from zinc-leached residues was developed. The residues after acid leaching of zinc contained Ag 350 g/t, Au<0.01 g/t, Pb 3.87%, Zn 17.45%, Cu 1.38%, and 60.13% of silver existing in the residues was natural silver state. By using HT-1# as a collector and HT-2# as a frother, and following a flowsheet of one roughing stage, four cleaning stages and three scavenging stages, the silver in the residues could be concentrated by about 20 times to a level of 6616 g/t with a recovery rate of 82.98%.
