铜阳极泥处理过程中贵金属的行为-中国有色金属学报.PDF

20 5 2010 5 Vol.20 No.5 The Chinese Journal of Nonferrous Metals May 2010 1004-0609(2010)05-0990-09 ( 410083) 88%()97% 53% 14%26%8% TF831 TF833 A Behaviors of precious metals in process of copper anode slime treatment GUO Xue-yi, XIAO Cai-mei, ZHONG Ju-ya, TIAN Qing-hua (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The low recovery rates of Pt and Pd, and low direct recovery of Au are the main problems needed to be solved in the process of copper anode slime treatment for a non-ferrous metal company. The substance flow analyses (SFA) were used to study the behaviors of the precious metals such as Au, Ag, Pt and Pd. The results show that almost 88% Au and 97% Ag are enriched in the crude Au powder and crude Ag powder, respectively. However, Pt and Pd distribute scatteredly in the Pt-Pd concentrate, AgCl precipitated solution, Pt-Pd precipitated solution and Ag leached residue, with the amounts of Pt and Pd of 53%, 14%, 26% and 8%, respectively. Key words: copper anode slime; Au; Ag; Pt; Pd; substance flow analysis; precious metals; recovery 0.2%~1.0%[1] [2] 1 [3−11] (2008GK3031) 2009-07-30 2009-12-25 0731E-mail: xyguo@mail.csu.edu.cn 20 5