1. Abstract: The reaction of methyl ethyl ketazine and water to hydrazine hydrate was studied in the catalyst conditions.
   摘要： 以丁酮连氮和去离子水为原料，研究了在催化剂条件下丁酮连氮水解制水合肼的不同工艺条件；
2. Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
   选择脂肪族二异氰酸酯，通过酮连氮法制备水乳型聚氨酯—脲皮革涂饰剂。

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