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一、概况第四届全国金银选冶学术会议于1993年6月11~14日在河南省郑州市黄金大厦召开。大会由中国矿协选矿委员会主任委员、中国选矿科技信息网理事长张卯均主持,河南省黄金局马巧嘏副局长致开幕词,她首先代表河南省黄金局对来自全国各地的代表表示热烈欢迎,接着介绍了近年来河南黄金生产的现状、发展以及存在的问题,
I. Overview The Fourth National Gold and Silver Smelting Academic Conference was held on June 11-14, 1993 in the Gold Tower of Zhengzhou City, Henan Province. The conference was presided over by Zhang Mao, chairman of China Mineral Processing Commission and chairman of China Mineral Processing Technology Information Network. Ma Qiaohuan, deputy director of Henan Provincial Bureau of Gold, delivered an opening speech. She first extended a warm welcome to delegates from all over China on behalf of Henan Provincial Bureau of Gold. Then introduced the status of Henan gold production in recent years, development and problems,