【摘要】 研究了不对称亚砜BSO萃取废导线溶解液中钯、铜、镍的性能,结果表明,BSO浓度为0.5 mol.L-1,盐酸浓度2 mol.L-1,相比(O/A)=1,萃取时间5 min时,钯的萃取率为99.6%,铜的萃取率为4.1%,镍的萃取率几乎为零,从而实现钯与铜和镍间的分离。用氯化铵-氨水溶液反萃载钯有机相,反萃率为96.2%。钯的总直收率为93.9%。更多还原

【Abstract】 The extraction properties of palladium,copper and nickel from the solution of waste wire with unsymmetrical sulfoxide BSO were studied.The results showed that extraction percentage of palladium was 99.6% by unsymmetrical sulfoxide BSO,and that of copper was 4.1%,while nickel was near nil under the conditions of 0.5 mol·L-1 BSO,2 mol·L-1 HCl,ratio of phase O/A=1 and 5 min extraction time.Organic phase of loaded palladium is stripped by ammonium chloride-ammonia solution and the stripping percentage of palladium was 96.2%.The percentage of direct recovery of palladium was 93.9%.更多还原