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发明公开
CN104607254A 用于制备生物柴油的碳酸锰甘油锌固体碱催化剂 无效 - 驳回

用于制备生物柴油的碳酸锰甘油锌固体碱催化剂
摘要：
本发明公开了一种用于制备生物柴油的碳酸锰甘油锌固体碱催化剂。制备过程如下：MnCl2与ZnCl2中Mn2+与Zn2+按摩尔比1:1配成混合水溶液，与K2CO3水溶液在50-70℃混合，静置、洗涤、抽滤，得到Mn2CO3/ZnO沉淀烘干；Mn2CO3/ZnO沉淀浸没在甘油中，升温至150℃-180℃搅拌反应2-6h，甲醇洗涤除去过量甘油，烘干得到碳酸锰甘油锌。甘油的加入对Mn2CO3/ZnO的活性起了活化与再生恢复活性的作用，由于酯交换反应副产物也是甘油，可通过某种有机反应再生成甘油锌，弥补碳酸锰甘油锌在重复使用中的活性点位的损失。
摘要（英）：

The invention discloses a manganous carbonate glyzinc solid base catalyst for biodiesel preparation. The preparation process is as follows: MnCl2 and ZnCl2 are mixed to form a mixed aqueous solution in the Mn<2+>-to-Zn<2+> mole ratio of 1:1, the mixed aqueous solution is mixed with a K2CO3 aqueous solution at the temperature of 50-70 DEG C and is left to stand, washed and subjected to suction filtration to obtain Mn2CO3/ZnO precipitate, and then the Mn2CO3/ZnO precipitate is dried; the Mn2CO3/ZnO precipitate is immersed in glycerinum, heated to 150-180 DEG C, stirred to have a reaction for 2-6 h, washed with methyl alcohol to remove excessive glycerinum and dried to obtain manganous carbonate glyzinc. The added alycerinum performs the functions of activity activation and activity regeneration and restoration on Mn2CO3/ZnO; due to the fact that a byproduct of an ester exchange reaction is also glycerinum, glyzinc can be regenerated through a certain organic reaction, and the loss of active sites of manganous carbonate glyzinc in repeated use is made up for.

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