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我厂从1970年开始与晨光化工厂、成都工学院协作试制一号钴。1975年单元素净化试验达到要求。1978年进行萃取离子交换电
I plant from the beginning of 1970 and Chenguang Chemical Factory, Chengdu Institute of Technology trial No. 1 Cobalt. 1975 single element purification test to meet the requirements. In 1978 extraction ion exchange