中国资源综合利用
中國資源綜閤利用
중국자원종합이용
China Resources Comprehensive Utilization
2015年
8期
22-25
,共4页
镍钴浸出液%溶剂萃取%净化
鎳鈷浸齣液%溶劑萃取%淨化
얼고침출액%용제췌취%정화
nickel and cobalt leaching solution%solvent extraction%purification
研究了从酸性加压浸出液中采用溶剂萃取法提取镍钴工艺，考察了溶液pH值、相比、混合时间等对镍钴及其他金属离子萃取的影响。试验结果表明：在有机相组成为15%P204+75%磺化煤油+10%TBP，水相pH值为1.62.5，皂化率为65%，相比C（O/A）=21，恒温振荡箱中振荡10 min条件下，镍、钴的萃取率可达到98%以上；负载有机相采用2.04.0 mol/L稀硫酸反萃，相比C（O/A）=21，一次反萃率为96%以上。试验结果表明，采用P204溶剂萃取法可有效净化酸浸液回收镍钴。
研究瞭從痠性加壓浸齣液中採用溶劑萃取法提取鎳鈷工藝，攷察瞭溶液pH值、相比、混閤時間等對鎳鈷及其他金屬離子萃取的影響。試驗結果錶明：在有機相組成為15%P204+75%磺化煤油+10%TBP，水相pH值為1.62.5，皂化率為65%，相比C（O/A）=21，恆溫振盪箱中振盪10 min條件下，鎳、鈷的萃取率可達到98%以上；負載有機相採用2.04.0 mol/L稀硫痠反萃，相比C（O/A）=21，一次反萃率為96%以上。試驗結果錶明，採用P204溶劑萃取法可有效淨化痠浸液迴收鎳鈷。
연구료종산성가압침출액중채용용제췌취법제취얼고공예，고찰료용액pH치、상비、혼합시간등대얼고급기타금속리자췌취적영향。시험결과표명：재유궤상조성위15%P204+75%광화매유+10%TBP，수상pH치위1.62.5，조화솔위65%，상비C（O/A）=21，항온진탕상중진탕10 min조건하，얼、고적췌취솔가체도98%이상；부재유궤상채용2.04.0 mol/L희류산반췌，상비C（O/A）=21，일차반췌솔위96%이상。시험결과표명，채용P204용제췌취법가유효정화산침액회수얼고。
The technology of extracting nickel and cobalt from acid pressure leaching solution adopting solvent extraction method was researched. The effects of the solution pH, phase ratio and extraction time on the extraction rate of Ni, Co and other metallic ion were investigated. The tests result showed that the extraction ratio of Ni and Co could reach above 98% at the condition of the organic phase containing 15% P204, 75%sulfonated kerosene and 10% tri-butyl-phosphate with O/A of 2∶1, saponification rate of 65%, aqueous pH of 1.6, and the mixing time of 10 min. When the load organic reagent was stripped with dilute sulphuric acid of 2.0 M, the stripping ratio of Ni and Co were more than 96% after one-stage stripping with O/A of 2∶1. The experiment results showed that the P204 solvent extraction method could purify effectively the leaching solution to separate nickel and cobalt from acid pressure leaching solution.
