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针对传统"王水溶解—氯化铵反复沉淀法"从铂钯精矿提取铂的过程中存在氮氧化物难治理、赶硝不彻底造成钯超标等问题,提出了"氯酸钠溶解—水解—丁二酮肟除钯—水合肼还原精炼"全湿法短流程,从铂钯精矿提取高纯铂的新工艺方案。结合工业生产实践对该新工艺的流程和原理进行详细分析,并确定了各阶段的最佳反应条件。该工艺可以稳定产出满足SM-99.95的海绵铂,铂直收率高达98%。新工艺流程简单,原料适应性强,成本低、易操作。
Abstract：To address difficult treatment of nitric oxide and palladium in platinum products exceed standard due to incomplete denitration during prepare platinum from Pt-Pd concentrate by traditional process of dissolving with aqua regia and repeated precipitation with ammonium chloride,a new hydrometallurgy short process for extracting high purity platinum from Pt-Pd concentrate,sodium chlorate dissolution,hydrolysis,palladium removal with dimethylglyoxime and reduction refining with hydrazine hydrate,was proposed.Combined with industrial production practice,technological process and principle of new scheme were analyzed and the optimum reaction conditions in each stage were determined.The plant practices show that sponge platinum meeting standard of SM-99.95 with direct recovery rate of platinum of 98%is stably prepared.New process has the advantages of simple,strong adaptability to raw materials,low cost and easy to operate.
[1]胡意文,欧阳辉,王日,等．一种将溶液中铂钯富集的方法：20161017144.0[P].2016-07-20.HU Y W.OUYANG H,WANG R,et al.A method of enriching platinum and palladium in solution:20161017144.0[P].2016-07-20．
[2]花少杰,胡鹏举,布金峰．卡尔多炉处理高杂铜阳极泥的工艺改进[J]．有色金属(冶炼部分),2020(2):45-48.HUA S J,HU P J,BU J F.Technology improvement on treatment of copper anode slime with high impurity in Kaldo furnace[J].Nonferrous Metals(Extractive Metallurgy),2020(2):45-48．
[3]卢宜源,宾万达．贵金属冶金学[M]．长沙：中南大学出版社,2004.LU Y Y,BIN W D.Precious Metals Metallurgy[M].Changsha:Central South University Press,2004．
[4]王兴,崔家友,张善辉,等．从铂钯精矿中提取金、铂、钯工艺研究[J]．中国资源综合利用,2015,33(7):20-23.WANG X,CUI J Y,ZHANG S H,et al.Research on extraction of gold,platinum and palladium from palladium-platinum concentrate[J].China Resources Comprehensive Utilization,2015,33(7):20-23．
[5]孙敬韬,黄绍勇,刘永平,等．一种从氯铂酸铵中分离提纯海绵铂的工艺：201910684678.9[P].2019-07-26.SUN J T,HUANG S Y,LIU Y P,et al.A process for separation and purification of sponge platinum from ammonium chloroplatinate:201910684678.9[P].2019-07-26．
[6]林志业．从镍磷铁(二次)阳极泥中提取铂钯试验[J]．有色冶炼,1990,19(4):18-21.LIN Z Y.Extraction of platinum and palladium from nickel-phosphorus-iron(secondary)anode slime[J].Nonferrous Metallurgy,1990,19(4):18-21．
[7]张钦发,龚竹青,陈白珍．从铂钯精矿中提取金银铂钯的研究---铂钯精矿的预处理[J]．矿冶工程,2002,22(2):70-72.ZHANG Q F,GONG Z Q,CHEN B Z.Investigation on extraction of Au,Pt and Pd:Pretreatment of the concentrate[J].Mining and Metallurgical Engineering,2002,22(2):70-72．
[8]张钦发．从铜阳极泥分金钯后的铂精矿中提取分离铂钯金新工艺及萃取机理研究[D]．长沙：中南大学,2007.ZHANG Q F.Study on new technology and extraction mechanism of platinum and palladium from platinum concentrate after gold and palladium separation from copper anode slime[D].Changsha:Central South University,2007．
[9]刘时杰．铂族金属矿冶学[M]．北京：冶金工业出版社,2001.LIU S J.Mineralogy of Platinum Group Metals[M].Beijing:Metallurgical Industry Press,2001．
[10]宋元宁．水解法分离Pt-Rh及氯铂酸的制取[J]．湿法冶金,1998,17(2):39-41,62.SONG Y N.Preparation of separation of Pt-Rh and chloroplatinic acid by hydrolysis[J].Hydrometallurgy of China,1998,17(2):39-41,62.
基本信息:
中图分类号:TF833
引用信息:
[1]孙敬韬,黄绍勇,陈善文,等.铂钯精矿制备高纯铂的工艺研究[J].有色金属(冶炼部分),2021(06):78-83.
2021-06-11
2021-06-11