蘇中府2，尹周瀾1，張平民1
(1. 中南大學(xué) 化學(xué)化工學(xué)院， 長沙 410083；
2. 江西銅業(yè)公司貴溪冶煉廠， 貴溪 335424)
摘 要: 介紹了Sb在銅電解液凈化中的應(yīng)用。 銅陽極泥分銀渣（含Sb21.35%)以及由Sb2O3 和BaSO4合成的吸附劑能選擇性吸附電解液中的As, Sb, Bi。在確保電解液主要成分不變的情況下， 不論是分銀渣還是合成吸附劑都能從銅電解液中吸附90%Bi, 80%Sb及部分As。 在討論吸附機理的同時， 還研究了陽極銅含Sb對電解過程雜質(zhì)在陽極泥和電解液之間的分配比例的影響。發(fā)現(xiàn)提高Sb在陽極銅里的相對含量可增大電解過程As, Sb, Bi進入陽極泥的比例，從而為銅電解凈液尋找了一條方便經(jīng)濟的途徑。
關(guān)鍵字: 銻吸附劑； 銅電解精煉； 溶液凈化
YIN Zhou-lan1, ZHANG Ping-min1
（1. College of Chemistry and Chemical Engineering,
Central South University, Changsha 410083, China;
2. Guixi Smelter, Jiangxi Copper Corporation,
Guixi 335424, China）
Abstract:The application of antimony in the purification of copper electrolyte was presented. Copper anode slime residue extracted silver(Sb content 21.35%)and the adsorbent synthesized with Sb2O3 and BaSO4 can selectively adsorb As, Sb and Bi from copper electrolyte. Under the conditions of fixed contents of Cu and H2SO4 in copper electrolyte, both the residue and the adsorbent can adsorb 90% of Bi, 80% of Sb as well as parts of As. Besides the mechanism of adsorption was discussed, the influence of antimony content in copper anode on the distribution of impurities between anode slime and electrolyte was studied. It was found that by increasing the content of Sb in anode properly, the amount of impurities remained in electrolyte can be markedly reduced, so the amount of electrolyte to be purified can be reduced.
Key words: antimony adsorbent; copper electrorefining; solution purification
