现代矿业
現代礦業
현대광업
Express Information of Mining Industry
2011年
8期
20-22
,共3页
金矿%炭质%重—浮工艺
金礦%炭質%重—浮工藝
금광%탄질%중—부공예
Gold ore%Carbon-based%Gravity separation-flotation technology
云南某金矿石含炭质高,金矿物主要为自然金,部分金和硫化矿物聚集程度较高,多数粒度较细小,宜采用富集后再氰化浸出工艺提金。试验研究表明,适宜的富集工艺为-200目占85%的磨矿产品摇床重选,摇尾1粗2精2扫、中矿顺序返回流程浮选,可获得金品位295.45 g/、t回收率32.65%的重砂;金品位42.07 g/、t回收率53.46%的浮选金精矿,总金回收率达86.11%。
雲南某金礦石含炭質高,金礦物主要為自然金,部分金和硫化礦物聚集程度較高,多數粒度較細小,宜採用富集後再氰化浸齣工藝提金。試驗研究錶明,適宜的富集工藝為-200目佔85%的磨礦產品搖床重選,搖尾1粗2精2掃、中礦順序返迴流程浮選,可穫得金品位295.45 g/、t迴收率32.65%的重砂;金品位42.07 g/、t迴收率53.46%的浮選金精礦,總金迴收率達86.11%。
운남모금광석함탄질고,금광물주요위자연금,부분금화류화광물취집정도교고,다수립도교세소,의채용부집후재청화침출공예제금。시험연구표명,괄의적부집공예위-200목점85%적마광산품요상중선,요미1조2정2소、중광순서반회류정부선,가획득금품위295.45 g/、t회수솔32.65%적중사;금품위42.07 g/、t회수솔53.46%적부선금정광,총금회수솔체86.11%。
A gold ore in Yunnan carbon-based content is high,gold mineral is mainly natural gold,aggregation degree of partial gold and sulfide minerals are high,most of particle size are fine,after enrichment then cyanide leaching technology is suitable to extracting gold.Test research indicated,suitable purifying technology was grinding product which-200 mesh account for 85% table concentrator gravity separation,tailings concentrator one time roughing twice regrade twice scavenging,middling order return process flotation,heavy minerals with gold grade 295.45 g/t,recovery rate 32.65% and flotation gold concentrate with gold grade 42.07 g/t,recovery rate 53.46% could obtained,general recovery rate of gold reached to 86.11%.
