电解液中的钴杂质,需通以氯气,使其生成CoCl,经过滤除去。若通入氯气量不足,则钴、铅等杂质不能除净;若氯气量过大,则增加金属流失,降低了回收率。可见,测知及控制氯气流量,对产品质量、产量、降低成本关系极大。但氯气性质活泼,毒性很大,因此测知其流量困难较多,我们遵循毛主席“一个正确的认识,往往需要经过由物质到精神,由精神到物质,即由实践到认识,由认识到实践 Electrolyte of cobalt impurities, need to pass chlorine, to generate CoCl, filtered to remove. If the access to chlorine is insufficient, the cobalt, lead and other impurities can not be net; if the chlorine is too large, increase the loss of metal, reducing the recovery rate. Can be seen, detection and control of chlorine flow, the product quality, yield, reduce costs a great relationship. However, the nature of chlorine is very lively and toxic. Therefore, it is more difficult to measure its flow rate. Following Chairman Mao’s "correct understanding, we often need to go through the process of changing from materialism to spirituality, from spirituality to materialism, from practice to understanding, practice