化学还原法制备重质钯粉新工艺  

New Technology for Preparation of High Compacted Density Palladium Powder by Chemical Reduction Method

作　　者：陈治毓 王得瑜 潘从明 高向乾 方潇 李丽 李睿 白伟道 CHEN Zhiyu;WANG Deyu;PAN Congming;GAO Xiangqian;FANG Xiao;LI Li;LI Rui;BAI Weidao(Jinchuan Group Shanghai Metal Resources Limited Company,Shanghai 200061,China;Jinchuan Group Copper and Precious Metals Limited Company,Jinchang 737100,Gansu,China)

机构地区：[1]金川集团上海金属资源有限公司,上海200061 [2]金川集团铜贵有限公司,甘肃金昌737100

出　　处：《有色金属（冶炼部分）》2024年第8期80-85,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：甘肃省科技计划项目联合科研基金资助项目(23JRRC0008)。

摘　　要：采用国内某铂族金属钯提炼过程中的络合液为原料,通过试验探究了不同条件下制备的高振实密度重质钯粉的粒径与密度,筛选出最佳的制备工艺路线与技术条件。结果表明,以pH=8为起点,通过水合肼直接还原钯络合液生成海绵钯为晶种,再通过盐酸肼进一步还原,可制备出颗粒均匀,振实密度高达3.25 g/cm^(3)左右的高密度重质钯粉。The particle size and density of high compacted density palladium powder prepared under different conditions were investigated by using the complex solution in the refining process of platinum group metal palladium as raw material,and the optimal preparation process and technical conditions were selected through experiments.The results show that high compacted density palladium powders with uniform particles and compacted density up to about 3.25 g cm^(3) can be prepared by direct reduction of palladium complex solution with hydrazine hydrate to form palladium sponge as crystal seed at pH=8 and further reduction with hydrazine dihydrochloride.

关 键 词：化学还原法 盐酸肼 提纯 重质钯粉 

分 类 号：TF836[冶金工程—有色金属冶金]