湿法冶金2024，Vol.43Issue(6)：620-623,4.DOI:10.13355/j.cnki.sfyj.2024.06.004
酸浸—萃取法回收废旧CPU中的金试验研究
Recovery of Gold from Waste CPU by Acid Leaching and Extraction
摘要
Abstract
Leaching solution with a mass concentration of 256.1 mg/L was obtained by using aqua regia to recover the gold from the CPU,and the gold in the acid leaching solution was recovered by solvent extraction.The effects of extractant type,concentration,extraction time,extraction phase ratio and extraction temperature on the gold extraction were investigated.The results show that with 80％dibutylcarbitol as the extraction agent,the gold extraction rate can reach 99.86％under the condition of VO∶VA=1∶4 and room temperature for 10 min.The sponge gold product can be obtained by stripping with oxalic acid.The recovery effect is good.The method has a certain popularization value in the comprehensive recovery of gold-containing electronic solid waste such as CPU.关键词
电子固体废弃物/废旧CPU/回收/金/王水/浸出/萃取/二丁基卡必醇Key words
electronic solid waste/waste CPU/recovery/gold/chlorohydrin/leaching/extraction/dibutyl carbitol分类
矿业与冶金引用本文复制引用
柳林,刘红召,王威,曹耀华,王洪亮,王科,赵俊利..酸浸—萃取法回收废旧CPU中的金试验研究[J].湿法冶金,2024,43(6):620-623,4.基金项目
河南省科技攻关项目(232102321137). （232102321137）
