由萃余液可沉淀出碳酸镍粗产品。
萃余液经萃取除杂后，获一定量的荧光级氧化铕产品。
After the impurities were extracted from raffinate, some products of fluorescent grade europia were produced.
萃余液经一次性蒸发浓缩，可得到质量分数80%以上的硫酸。
The extraction raffinate can be concentrated by one-stage evaporation to obtain sulfuric acid with 80% of mass fraction.
应用推荐