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1·The waste acid from the manufacture of cation exchange resin can be successfully recovered and reused by a new washing process with dilute acid instead of traditional washing process with water.

采用稀酸套洗工艺代替传统的加水稀释洗涤工艺，成功地解决了阳离子交换树脂生产中废酸的回收利用问题。

2·Type 732 cation exchange resin was added in nickel bath to separate nickel ions and other cations, boric acid and chloride ions were then separately titrated by sodium hydroxide and silver nitrate.

采用732型阳离子交换树脂分离镍及其它阳离子后，分别用氢氧化钠和硝酸银滴定硼酸和氯离子。

3·Ion exchange equilibrium of neutral amino acids on 732 strong acid cation exchange resin in non buffer systems were studied and an equilibrium model was proposed.

研究了非缓冲体系中性氨基酸在732型强酸性阳离子交换树脂上的离子交换平衡，并提出了平衡模型。

4·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。

5·Resin direct hydration method is the procedure that butylenes which is in super-critical status reacts with water to produce secondary butyl alcohol with the catalyst of acid cation exchange resin.

树脂直接水合法是以固体酸性阳离子交换树脂作催化剂，以丁烯在超临界状态下与水反应生成仲丁醇。

6·A thorough inventory of base cation emissions in China is needed to develop programs for acid deposition control.

盐基阳离子排放清单的建立，对于中国酸沉降控制有重要的意义。

7·The variation of this pH range was dependent on the strength of the base, the volume of the conjugated acid cation, and whether this cation can increase the surface charge of the micelles or not, etc.

这一范围的大小（宽窄）受制于碱的强弱、共轭酸阳离子的体积以及共轭酸阳离子是否能增加胶束表面的电荷等几个方面。

8·Fatty acid methyl esters were prepared by esterification in a fixed bed reactor from methanol and fatty acids in palm oil deodorizer distillate (PODD) using a cation exchange resin as catalyst.

以强酸性阳离子交换树脂为催化剂，经过自制的固定床反应器，使棕榈油脱臭馏出物(PODD)中的脂肪酸与甲醇起酯化反应，合成脂肪酸甲酯。

9·Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst.

用国产NKC-29型强酸性阳离子交换树脂为催化剂，在常压液相条件下用乙醇和叔戊醇为原料合成了乙基叔戊基醚。

10·The derived polyacrylic acid (PAA) -pva grafted fibres possess cation exchange characteristics.

制得的PAA -接枝维纶具阳离子交换特性。