一种电化学法生产高纯金的工艺和装置  

An Electrochemical Process and Its Equipment for Producing High Purity Gold

作　　者：王建军 姬利红 庄宇凯 姬亚沣 冯桂坤 董华绘 谢锋[3] 王伟[3] 衡振平 WANG Jian-jun;JI Li-hong;ZHUANG Yu-kai;JI Ya-feng;FENG Gui-kun;DONG Hua-hui;XIE Feng;WANG Wei;HENG Zhen-ping

机构地区：[1]山东招金金银精炼有限公司,山东招远265400 [2]郑州金泉矿冶设备有限公司,河南郑州450000 [3]东北大学,辽宁沈阳110000

出　　处：《有色设备》2021年第6期55-58,共4页Nonferrous Metallurgical Equipment

摘　　要：本文介绍了一种电化学法生产高纯金的工艺及其配套设备,整套工艺可简单分为电化学溶解和电化学沉积两个过程,通过特殊的槽体结构和选择性离子透过膜,使粗金的溶解和金粉的析出在两个槽体中进行,选择性离子透过膜可以阻隔[AuCl;]-通过,使得电化学溶解槽中的Au[Ⅲ]在阳极室富集,溶解完毕后溶解槽阳极室的贵液转移至电化学沉积槽的阴极室,使其在阴极板上析出。来料95%以上的粗金经两次工艺后可生产出满足国家标准的高纯金。整道工艺技术先进,与电解法和化学法相比具有污染小、无电解液占压等优点,整套装置操作简单,自动化控制、可靠性和安全性高。In this paper, an electrochemical process and its supporting equipment for producing high purity gold are introduce. The whole process can be divided into electrochemical dissolution and electrochemical precipitation. By using special tank structure and ion permselective membrane, crude gold dissolution and precipitation of gold are done in two tanks, and ion permselective membrane can cut off the passing of [AuCl;]-to enable the enrichment of Au[Ⅲ] in the anode chamber of the electrochemical dissolution tank. Upon completion of dissolution, the pregnant solution in the anode chamber of the electrochemical dissolution tank is transferred to the cathode chamber of the electrochemical precipitation tank for its precipitation on the cathode plate. Going through the process twice, crude gold can be processed into high purity gold that meets national standards. The whole process is an advanced technology with the advantages of less pollution and no electrolyte pressure comparing with electrolysis or chemical method.The whole set of equipment is simple to operate with automatic control, high reliability and safety.

关 键 词：高纯金 电化学法 选择性离子透过膜 无电解液占压 

分 类 号：TF831[冶金工程—有色金属冶金]