• Syntheses of cinnamic esters catalyzed by solid acids such as sulphate and ion-exchanged resin were surveyed.

    比较以硫酸盐阳离子交换树脂分别为催化剂合成肉桂

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  • Copper and polymerized ferric sulphate were prepared by using scrap iron coils to react with acid wastewater containing copper ion.

    利用废铁酸性废水作用制备金属铜和聚合硫酸铁,并用聚合硫酸铁作絮凝剂处理酯化废水。

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  • Pure enzyme was obtained by using the salt fractionation with ammonium sulphate, the ion-exchange chromatography and the gel filtration.

    使用硫酸铵分级盐析,离交色谱凝胶过滤可获得纯净

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  • Both the duplicated bond and the hydroxide ion in castor oil took part in sulphate reaction and a hydrolysis also took place in the castor acid.

    反应过程中蓖麻双键羟基同时参与磺化反应,蓖麻甘油酯发生水解反应。

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  • Both the duplicated bond and the hydroxide ion in castor oil took part in sulphate reaction and a hydrolysis also took place in the castor acid.

    反应过程中蓖麻双键羟基同时参与磺化反应,蓖麻甘油酯发生水解反应。

    youdao

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