在传统钙镁磷肥生产中，添加作物生长需要的微量元素，是以固体无机盐加入半成品中制得。

In traditional production of FCMP, the addition of trace elements that crops needed are realized by adding inorganic salts in solid form into half-finished product.

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综述了磺酸、无机盐、固体超强酸、杂多酸、稀土化合物等催化体系对合成柠檬酸三丁酯的催化作用及研究进展。

This article aims at summarizing the development of research on synthesis of tributyl citrate and the catalysis of sulfonic acid inorganic salt solid superacid heteropoly acid rare earth compound.

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摘要综述了有机酸，无机盐，固体超强酸，阳离子交换树脂，杂多酸等催化剂催化合成己二酸二丁酯的方法。

The catalytic synthesis of dibutyl adipate with organic acid, in organic salt, solid super - acid, ion - exchange resin, hpa etc. were reviewed.

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