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冶金部委托青海省冶金局和云南省冶金局联合主持召开青海元石山镍矿还原氨浸扩大试验鉴定会于1981年8月20至23日在昆明举行,参加单位有青海省地质局、青海省经委、北京矿冶研究总院、北京有色研究总院、昆明冶金研究所等22个,代表48人.会上分别由青海省冶金局代表报告试验任务及要求,元石山镍矿地质情况,试验完成情况;由北京矿冶研究总院代表作元石
Ministry of Metallurgy commissioned by the Qinghai Provincial Metallurgical Bureau and the Metallurgical Bureau of Yunnan Province jointly hosted the Qinghai Yuanshan Nickel ore reduction of ammonia leachate expansion test identified in August 1981 August 20 to 23 held in Kunming, the participating units Qinghai Province Geological Bureau, Qinghai Province Economic Commission, Beijing Mining and Metallurgical Research Institute, Beijing Research Institute of Nonferrous Metals, Kunming Institute of Metallurgy 22, on behalf of 48. At the meeting, respectively, by the representative of Qinghai Provincial Metallurgical Commission reported the test tasks and requirements, geological conditions Yuanshan nickel ore, test Completed by the Beijing Mining and Metallurgical Research Institute on behalf of Yuan Shi