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1·The sodium is removed with cation exchange resin.

钠用阳离子交换树脂来分离。

2·Cation exchange resin, strong acidic styrene 909; amberlite irn-77;

强酸性苯乙烯系阳离子交换树脂（909型，核子级）；

3·Then-butyl hydroxyethanoate was synthesized by cation exchange resin as catalyst.

以强酸性阳离子交换树脂为催化剂，合成羟基乙酸正丁酯。

4·The common resuscitative agent for polluted cation exchange resin by iron is hydrochloric acid.

铁污染软化水用树脂常用复苏剂是盐酸。

5·Methods Alcohol and strong acid cation exchange resin were used in the extraction and separation.

方法醇类溶剂提取法、离子交换树脂分离法。

6·In the method, a weakly acidic cation exchange resin or a weakly basic anion exchange resin may be used.

使用弱碱性阴离子交换树脂的上述方法等。

7·When the fixed bed continuous process is used, the appropriate catalyst is strong acid cation exchange resin.

当采用固定床连续甲酯化反应时，适宜的催化剂为强酸性阳离子交换树脂。

8·Comparing the results, cation exchange resin was proved to be a good separating method for the green substance.

用阳离子交换树脂可以将该绿色物质成功分离出来。

9·Pyruvic acid, grain alcohol as material, cation exchange resin as catalyst, the ethyl pyruvate was synthesized.

论述了以丙酮酸、乙醇为原料，离子交换树脂作催化剂，催化合成丙酮酸乙酯的新工艺。

10·Taking succinic acid, alcohol as material, cation exchange resin as catalyst the diethyl succinate is synthesized.

论述了以丁二酸、无水乙醇为原料，离子交换树脂，催化合成丁二酸二乙酯的新工艺。