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1. 发明申请

US20120142953A1 METHOD FOR THE TRANSESTERIFICATION OF HYDROXYLATED OILS 有权
标题翻译：羟化油的转化方法
公开(公告)号：US20120142953A1
公开(公告)日：2012-06-07
申请号：US13128507
申请日：2009-11-10
申请人： Jean-Francois Devaux , Georges Martino-Gauchi , Jean-Yves Balouin , Patrice Iafrate
发明人： Jean-Francois Devaux , Georges Martino-Gauchi , Jean-Yves Balouin , Patrice Iafrate
IPC分类号： C11C1/00
CPC分类号： C11C3/003 , C10L1/026 , C10L1/19 , Y02E50/13
摘要： The present invention relates to a method for the transesterification of a hydroxylated oil including two consecutive transesterification steps performed in the presence of a light alcohol (methanol or ethanol) and a basic catalyst under temperature, pressure and alcohol/oil weight ratio conditions enabling the nearly total conversion of the hydroxylated oil into fatty acid esters. Characteristically, a resulting directly from the first transestrefication step in order to obtain a reaction mixture including, in particular, hydroxylated fatty acid esters and glycerol. Said reaction mixture is subjected to a separation step that makes it possible to obtain a less dense phase predominantly consisting of fatty esters and a denser phase predominantly consisting of glycerol and water and fatty acid soaps. The second transesterification step is performed on the less dense phase, with said light alcohol and said basic catalyst are added thereto.
摘要翻译：本发明涉及羟基化油的酯交换方法，包括在轻质醇（甲醇或乙醇）和碱性催化剂存在下，在温度，压力和醇/油重量比条件下进行的两个连续酯交换步骤，使得能够接近将羟基化油总转化为脂肪酸酯。特征在于，直接从第一经过透反射步骤获得反应混合物，特别是包括羟基化脂肪酸酯和甘油的反应混合物。所述反应混合物进行分离步骤，使得可以获得主要由脂肪酯组成的较不致密的相和主要由甘油和水以及脂肪酸皂构成的致密相。第二酯交换步骤在较不致密的相上进行，所述轻质醇和所述碱性催化剂加入其中。

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