大西洋铜公司韦尔瓦精炼厂的最新改进

Recent improvement at the Atlantic Copper Refinery

西班牙韦尔瓦精炼厂1970年开始生产,1995年采用了艾萨永久阴极铜技术。引进艾萨法后,作业不断改进,产量高出设计能力15%,且阴极质量极佳。同时,还做了一些重大改进,例如,2000年对电解液净化过程进行了改造,使得大西洋铜公司完全排除了装运韦尔瓦冶金联合企业之外的电解液。然而这些改进又产生了一些技术难题和操作问题,例如钝化现象和电解液污染。本文介绍了最近几年的工艺变化和操作改进。

The electrolytic copper refinery in Huelva, Spain began operations in 1970, and since 1995, has operated using ISA permanent cathode technology. Following the initial period of consolidation of the ISA process, the operation has been continuously improved to reach production levels 15% above the design capacity, together with excellent levels of cathode quality. In parallel, it has been necessary to carried out in 2000, which has allowed Atlantic Copper to totally eliminate the shipment of any electrolyte outside the Huelva Metallurgical Complex. These modifications in turn have been the origin of technical difficulties and operational problems, such as passivation phenomena and electrolyte contamination. The present parper describes the changes in the process and the operational improvements introduced over the last few years.