利用泔水油合成菜油脂肪酰胺丙基·二甲基胺

Synthesis of fatty acid proplydimethylamide from swill oil

应用泔水油中菜籽油与N,N-二甲基-1,3-丙二胺直接反应一步合成菜油脂肪酰胺丙基·二甲基胺。具体条件为:投料物质的量比(泔水油所含的脂肪酸∶N,N-二甲基-1,3-丙二胺)为1∶1.1,反应温度100℃～105℃,反应时间1.5～2.0h,催化剂用量1.5%。通过红外吸收光谱分析,进一步证明生成物确为脂肪酰胺丙基·二甲基胺。

By means of the direct reaction of swill oil and N,N-Dimethyl-1,3-propanediamine, fatty acid proplydimethylamide is synthesized. The proper conditions are as follows: the reaction was carried out at about 100 ℃ with the ratio of fatty acid inswill oil and N,N-Dimethyl-1,3-propanediamine being 1:1.1 as well as catalyst of 1.5% for 1.5～2.0 h. Infrared spectrum analysis proves fatty acid proplydimethylamide was synthesized.