会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • PROCESS FOR THE PRODUCTION OF FURFURAL
    • 生产过程的过程
    • WO2013101999A1
    • 2013-07-04
    • PCT/US2012/071936
    • 2012-12-28
    • E. I. DU PONT DE NEMOURS AND COMPANY
    • FAGAN, Paul JosephOZER, RonnieTILL, Eric J.
    • C07D307/48B01J27/053B01J29/82
    • C07D307/50
    • Furfural is produced by mixing an aqueous feedstock solution containing C 5 sugar and/or C 6 sugar with a heated, high boiling, water-miscible solvent, such as sulfolane, and a soluble acid catalyst. Furfural product and water are distilled off through a multistage distillation column, leaving non-volatile solvent behind. Typical furfural yields with sulfolane as the reaction solvent are about 80% at as high as 99% conversion. Also, certain by-products (e.g., humins) solubilized in the reaction solvent can be precipitated by addition of water or aqueous feedstock solution and then removed by filtration, thereby providing a convenient and effective way of removing these undesirable byproducts from the reaction mixture.
    • 糠醛通过将含有C5糖和/或C6糖的原料水溶液与加热的,沸点高的水混溶性溶剂如环丁砜和可溶性酸催化剂混合而制备。 通过多级蒸馏塔蒸馏出糠醛产物和水,留下非挥发性溶剂。 以环丁砜作为反应溶剂的典型糠醛产率为高达99%转化率的约80%。 此外,溶解在反应溶剂中的某些副产物(例如,胡氏体)可以通过加入水或原料溶液沉淀,然后通过过滤除去,从而提供从反应混合物中除去这些不期望的副产物的方便有效的方法。