摘要
研究了油脂一步法制脂肪腈工艺中，甘渍回收技术。选用适当的低温催化剂，在２３０℃￣２８０℃，氨气流速１０００Ｌ／ｈｋｇ左右，采用分段冷凝回收工艺和回流萃取技术可获得浓度８５％以上工业粗甘油，总收率达９０％，杂质含量很少。
Glycerol recovery technology is studied in one-step synthesis of fatty nitriles from fats. With low tempreture nitrilization catalyst and fraction condensation, industrial grade glycerol of concentration greater than 85% is recovered at 230℃~270℃ with circulating NH3 flow rate of 1 000 L/hkg . The total yield is greater than 90%. After vacuum distillation, high quality industrial grade glycerol is recovered with total yield of 85%~90%.
出处
《四川轻化工学院学报》
2000年第3期59-62,共4页
Journal of Sichuan Institute of Light Industry and Chemical Technology
基金
四川省青年科学基金
关键词
脂肪
一步法制腈
甘油回收
工艺
glycerol
one-step synthesis of fatty
nitriles
recovery
