The modified titanium base solid acid used as catalyst for the synthesis of tributyl citrate from citric acid and butyl alcohol was investigated in this paper.
以改性钛基固体酸为催化剂催化合成柠檬酸三丁酯，确定了酯化优化条件。
The paper describes the transesterification reaction of oil and fat with alcohol to make fatty acid ester in presence of a solid base catalyst.
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 process is acid adding pre-leaching at normal pressure, pressurized oxygen leaching to leach out base metals and filtering separation to obtain solid noble metal concentrate.
其特征在于 采用常压加酸预浸、再加压氧浸出，将羰化合成残渣中的贱金属浸出，过滤分 离得到固体贵金属精矿。
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