黄金真空蒸馏精炼技术试验研究与生产实践  

Experimental Study and Production Practice of GoldRefining by Vacuum Distillation Technology

作　　者：黄宪涛 郭艳波 HUANG Xiantao;GUO Yanbo(Jiyuan Jinli Jinhong Industrial Co.,Ltd.,Jiyuan,Henan 454683)

机构地区：[1]济源市金利金鸿实业有限公司,河南济源454683

出　　处：《绿色矿冶》2025年第1期31-34,43,共5页Sustainable Mining and Metallurgy

摘　　要：针对传统湿法黄金精炼工艺存在产品含银量超标,副产物含酸废水、氮氧化物、氯化银等环保回收对环境产生压力等弊端,采用真空蒸馏技术进行黄金精炼,开展了试验研究和工业化实践,并简述了黄金真空精炼的技术优势和生产实践中发现的问题,对黄金真空精炼技术的前景进行展望。试验结果表明,在蒸馏温度1 300℃、蒸馏时间60 min、加入金银合金量6 kg的条件下,黄金精炼效果最好,产品纯度高,达92.89%,产品直收率最高,达到99.57%。试验验证了利用真空蒸馏技术进行黄金精炼的工艺可行性。工业化实践表明,金和银的回收率均达到99%以上。In view of the disadvantages of the traditional wet gold refining process,such as the excessive silver content of gold products,the pressure on the environment caused by the environmental protection recovery of acid-containing wastewater,nitrogen oxides,silver chloride and other by-products,the vacuum distillation technology was used for gold refining,and the experimental research and industrial practice were carried out.The technical advantages of gold vacuum refining and the problems found in production practice were briefly described,and the prospect of gold vacuum refining technology was prospected.The experimental results show that under the conditions of distillation temperature of 1300℃,distillation time of 60 min and gold and silver alloy amount of 6 kg,the gold refining effect is the best,the purity of the product is high,up to 92.89%,and the direct yield of the product is the highest,reaching 99.57%.The feasibility of gold refining by vacuum distillation technology was verified by experiments.Industrial practice shows that the recovery rate of gold and silver is more than 99%.

关 键 词：黄金 真空炉 精炼 绿色环保 

分 类 号：TF831[冶金工程—有色金属冶金] TF131