›› 2005, Vol. 5 ›› Issue (5): 514-516.
• 反应与分离 • Previous Articles Next Articles
XIE Hai-yun,LIU Zhong-hua,CHEN Wen,YIN Shu-biao
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谢海云,刘中华,陈雯,阴树标
Abstract: Using solvent extraction to separate Fe3+ from the leaching solution of arsenic-bearing sulfide copper concentrate ore is an important step of the process for preparing copper arsenate. P204 can extract Fe3+ from sulphate solution selectively. Under the conditions of extraction temperature at 25℃, phase ratio at 1?, aqueous pH at 1, concentration of P204 in kerosene being 30% (j), and 3-stage extraction, Fe3+ is extracted up to 93%, Cu and As are hardly extracted, and the content of Fe3+ in raffinate is under 9 mg/L.
Key words: P204[di(2-ethylhexyl) phosphoric acid], extraction, Fe3+, arsenic, copper, leaching solution
摘要: 从含砷硫化铜精矿浸出液中萃取除铁是后续制备砷酸铜的一道工序,P204可从硫酸介质中选择性地萃取铁离子. 实验结果表明,当有机相组成中P204为30%(j),相比1:1, pH"1时,通过三级萃取,铁的萃取率达93%以上,铜和砷几乎不被萃取,萃余液中残铁含量降至9 mg/L以下.
关键词: P204[二-(2-乙基己基)磷酸], 萃取, 铁, 砷, 铜, 浸出液
XIE Hai-yun;LIU Zhong-hua;CHEN Wen;YIN Shu-biao. Removal of Fe3+ by Solvent Extraction with P204 from Bacterial Leaching Solution of Copper Concentrate Ore[J]. , 2005, 5(5): 514-516.
谢海云;刘中华;陈雯;阴树标. P204萃取脱除铜精矿浸出液中铁[J]. , 2005, 5(5): 514-516.
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