用模型参数推算了常压下水三聚甲醛系统的共沸组成和共沸温度。
The azeotropic temperature and compositions of the trioxane-water system under atmospheric pressure were also predicted.
本发明首次使用离子液体作催化剂由甲醛合成三聚甲醛，催化剂可供连续进样循环使用。
This invention first time uses ionic liquid as catalyst to compose metaformaldehyde of formaldehyde. Catalyst can be supplied for circular use for continuous sample introduction.
以吗啉、三聚甲醛、二正丁胺为原料合成了一种吗啉衍生物，以异丁醛、氨水和硫为原料合成了一种噻唑衍生物。
A kind of morpholine derivative was synthesized by morpholine, trioxane and dibutylamines, and a thiazole derivative was synthesized by morpholine, ammonia and sulfur.
以吗啉、三聚甲醛、二正丁胺为原料合成了一种吗啉衍生物，以异丁醛、氨水和硫为原料合成了一种噻唑衍生物。
A kind of morpholine derivative was synthesized by morpholine, trioxane and dibutylamines, and a thiazole derivative was synthesized by morpholine, ammonia and sulfur.
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