• 课题设计以硅联剂原料反应类型水解缩合,选用有机催化剂

    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.

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  • 氧气、或醇残留催化剂、硅油、机械外力、填料硅氧烷基等都会影响聚硅氧烷稳定性

    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.

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  • 采用-交替沉淀法制备一种新型低压甲醇合成催化剂

    A new catalyst for methanol synthesis was prepared by alternant precipitation between acid and alkali.

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  • 综述了L质子)金属分子筛催化剂合成反应中的研制与应用情况,指出了分子筛催化剂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.

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  • 本文采用固体催化油脂和进行酯交换反应制备脂肪酯,着重固体催化剂研制及工艺优化。

    The paper describes the transesterification reaction of oil and fat with alcohol to make fatty acid ester in presence of a solid base catalyst.

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  • 酒石金鸡修饰型金属催化剂反应机理进行了探讨

    The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discussed.

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  • 酒石金鸡修饰型金属催化剂反应机理进行了探讨

    The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discuss...

    youdao

  • 酒石金鸡修饰型金属催化剂反应机理进行了探讨

    The reaction mechanism in tartrate modified catalysts and cinchona modified catalysts are also discuss...

    youdao

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