本课题设计以硅烷偶联剂为原料,反应类型为水解缩合,选用酸、碱,有机锡为催化剂。
The design of this subject: silicon coupling was used as raw material, the reaction type is hydrolytic condensation, acid, alkali and organic tin was used as catalyst.
氧气、水或醇、酸、碱或残留催化剂、硅油、机械外力、填料、聚硅氧烷的链端基等都会影响聚硅氧烷的热稳定性。
Accordingly, the thermal stability of polysiloxanes may be influenced by oxide, water, alcohol, acid, base, residual catalyst, silicone oil, mechanical stress, filler or the end groups of itself.
采用酸-碱交替沉淀法制备了一种新型的低压甲醇合成催化剂。
A new catalyst for methanol synthesis was prepared by alternant precipitation between acid and alkali.
综述了L酸与质子酸、碱(土)金属和分子筛催化剂在合成反应中的研制与应用情况,指出了分子筛催化剂是一种极具开发潜力的催化剂。
Researches in and application of Lewis acid, Bronsted acid, alkali, alkaline earth and molecular sieve catalysts were described in detail.
本文采用固体碱催化油脂和醇进行酯交换反应制备脂肪酸酯,着重于固体碱催化剂的研制及工艺优化。
The paper describes the transesterification reaction of oil and fat with alcohol to make fatty acid ester in presence of a solid base catalyst.
酒石酸及金鸡纳碱修饰型金属催化剂的反应机理也进行了探讨。
The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discussed.
对酒石酸及金鸡纳碱修饰型金属催化剂的反应机理也进行了探讨。
The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discuss...
对酒石酸及金鸡纳碱修饰型金属催化剂的反应机理也进行了探讨。
The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discuss...
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