一种新型钾盐专用离子交换树脂的研制

Preparation of a Novel Ion Exchange Resin Special for Sylvite

当前离子交换法钾盐生产主要是采用001×7阳离子交换树脂将碳酸氢铵、硝酸铵经离子交换转化为所需要的产品碳酸钾和硝酸钾。在工业生产过程中，离子交换树脂在进铵、进钾以及水洗时周期性、频繁地接触高浓度的钾、铵溶液。由于介质浓度以及转型体积的迅速交替变化所产生的渗透冲击力的作用．使得树脂在使用中破碎率较高，需经常填补，成为影响生产成本的一个重要因素。因此，开发一种具有较高交换容量及使用寿命的专用型离子交换树脂，使其更适应钾盐生产操作特点，已成为市场的迫切需求。

Akind of strong acidic cation exchange resin suitable for sylvite production was synthesized based on a sulfonated interpenetrating polymerized styrene and divinylbenzene with H2SO4(91%-93%),obtained resin possesses high osmotic shock stability and high exchange capacity. In this article,the optimized conditions for its preparation were introduced,and the performance of this resin was examined also.