异烷基膦酸单(1-甲基)庚基酯的合成

Synthesis of isoalkyl phosphonic acid(1-methyl)heptyl monoester

以石油裂解产物饱和烷烃、三氯化磷和1-甲基庚醇等为原料,通过氯磷酰化、酯化反应,首次成功合成异烷基膦酸单(1-甲基)庚基酯(代号5709)。该合成工艺简单,产品性能稳定,是一种高效、新型的钴镍分离萃取剂。

A new extractant, named isoalkyl phosphonic acid （1-methyl）heptyl monoester （Chinese trademark 5709）, was synthesized by using saturated hydrocarbon, phosphorus trichloride and 1- methylheptanol as raw materials through a series of chemical reactions. The synthetic conditions of the extractant are studied systematically. The synthetic process is practical, the quality of the extrac- rant is reliable. The reagent has excellent performances of separating cobalt from high nickel level sul- phate solution and can purify nickel electrolyte.