我厂于1980年起,用P_(204)萃取法净化硫酸钴液,脱除Cu.Mn.Fe及分离Co、Ni取得一定的成效。去年6月起又进行了用P_(204)萃取净化NiSO_4溶液,脱除Cu、Zn等杂质的工业性试验,基本取得了成功,满足了生产的要求,在此作简要介绍。一、主要设备 1.萃取箱:是箱式混合—澄清器,用8—10毫米硬聚氯乙稀塑料焊制,共25级。混合室有效容积为175×175×370毫米 I plant in 1980, with P_ (204) extraction purification of cobalt sulfate solution, removal of Cu.Mn.Fe and separation of Co, Ni achieved some results. Since June last year, P_ (204) has been used to purify NiSO_4 solution and remove impurities such as Cu and Zn. The industrial test has basically achieved success and meets the requirements of production. The brief introduction is given here. First, the main equipment 1. Extraction Box: a box-type mixer - clarifier, with 8-10 mm hard PVC plastic welding, a total of 25. The effective volume of the mixing chamber is 175 × 175 × 370 mm