1·It has been found that the Ca, Mg, la ion exchanged mordenites have both high activity and high selectivity toward dimethylamine with the yield of around 55%.
发现钙、镁、镧离子交换的丝光沸石，在表现出较高活性的同时，还对二甲胺具有55%左右的高选择性。
2·Influences of feedstock ingredients and ratio, water content on methylamine production were analyzed. The yield of dimethylamine can be moderately increased by adjusting the ratio of feedstock.
分析了在甲胺生产过程中，配料的组成、水含量、配比对甲胺生产的影响。通过调整配比可以适当提高二甲胺产量。
3·The select(?)ve synthesis of dimethylamine from ammonia and methylalcohol using the cation modified mordenite as catalysts on atmospheric pressure fixed bed have been studied.
研究了以阳离子改性的丝光沸石为催化剂，以氨和甲醇为原料，在常压固定床上二甲胺选择性合成反应。
4·The selective catalytic synthesis of dimethylamine from ammonia and methylalcohol over cerium modified mordenite under ambient pressure in a fixed bed reactor has been studied.
研究了氨和甲醇以铈改性丝光沸石为催化剂，在常压固定床上选择性合成二甲胺的反应。
5·Amphoteric monomer is prepared with acrylic acid, dimethylamine, and chloroethanol by Mannich reaction.
以丙烯酸、二甲胺、环氧氯丙烷为原料，通过曼尼希反应制得两性离子单体。