本文研究了在氨性硫酸盐溶液中,用N_(530)/P_(204)和N_(510)/P_(204)组成的协萃体系来萃取分离钴、镍。实验表明,国产羟肟类萃取剂(N_(530)、N_(510))与烷基磷酸萃取剂(P_(204))的混合物,对钴有良好的协萃作用。在pH≈9.5时,萃取率达到98％以上。而在类似的条件下萃取镍,则萃取率下降为10％以下。可见这两个协萃体系在类似上述的条件下,都有较好的分离钴、镍的效果。 In this paper, the extraction and separation of cobalt and nickel with ammoniacal sulphate solution using N_ (530) / P_ (204) and N_ (510) / P_ (204) The experiment shows that the mixture of domestic oxime extractant (N_ (530), N_ (510)) and alkyl phosphate extractant (P_ (204)) has a good synergistic effect on cobalt. At pH≈9.5, the extraction rate of more than 98%. When nickel is extracted under similar conditions, the extraction rate is reduced to below 10%. Can be seen that these two synergistic system similar to the above conditions, there is a better separation of cobalt, nickel effect.