Activity of acid catalyst was higher than that of base catalyst.
酸催化比碱催化具有更高的反应活性。
It shows that the acid catalyst works well on the reaction with efficient activity.
结果表明：酸化膨润土对阿司匹林的合成具有良好的催化活性；
When a stirred tank batch process is used, the appropriate catalyst is sulphuric acid.
当采用釜式间歇甲酯化反应时，浓硫酸为适宜的催化剂。
The catalyst has the advantages of strong acid-resistant ability and long service life.
本发明的催化剂具有耐酸能力强，寿命长的优点。
The catalyst has the advantages of strong acid-resistant ability and long service life.
本发明的催化剂具有耐酸能力强，寿命长的优点。
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