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  • [Wiley数据库][2011] Catalytic Conversion of Carbohydrates into 5-Hydroxymethylfurfural by Germanium(IV) Chloride in Ionic Liquids
  • 更新时间:2016-01-20;信息类型:期刊文章
  • Direct conversion of carbohydrates into 5-hydroxymethylfurfural (HMF) catalyzed by germanium(IV) chloride in ionic liquids has been investigated in search of an efficient and environmentally friendly process. Monosaccharides d-fructose and d-glucose, disaccharides sucrose and maltose, and even the polysaccharide cellulose were successfully converted into HMF with good yields under mild conditions (yield up to 92% in 5 min in the case of fructose). The structure of ionic liquids,catalyst loading, reaction temperature and water content had noticeable effects on this catalytic system. Addition of 5 molecular sieves during the dehydration of glucose resulted in an increase in HMF yield from 38.4% to 48.4%. A mechanism for glucose conversion to HMF catalyzed by germanium(IV) chloride was proposed according to 13C NMR spectra obtained in situ under different conditions using d-glucose-2-13C as the substrate.
  • 链接地址:http://www.ionicliquid.org/download/c-articles/2016-01-20/323.html
  • Driving towards success with biomass-derived petrol
  • 更新时间:2014-11-10;信息类型:国内研究进展
  • Chinese scientists have overcome previous limitations to generate high octane number petrol from biomass-derived γ-valerolactone (GVL), an organic compound that is already often blended in small amounts with petrol or diesel. Using an ionic liquid catalyst, the conversion churned out a 2,2,4-trimethylpentane-rich substance with an octane number of 95.4, the highest reported for biomass derived fuel.
  • 链接地址:http://www.ionicliquid.org/research/2015-11-04/407.html
  • 中国科学院兰州化学物理研究所开发的基于离子液体的热裂解制异氰酸酯工艺
  • 更新时间:2014-04-14;信息类型:工业应用>成功案例
  • 中国科学院兰州化学物理研究所系统研究了以氨基甲酸酯和一氧化碳为羰源合成N-取代氨基甲酸酯并经热裂解制异氰酸酯过程,形成多个优良的催化剂。通过共沉淀-焙烧-还原的方法发展出磁性四氧化三铁负载纳米镍催化剂(Ni/Fe3O4),高效的实现了甲苯二胺、4,4'-二苯氨基甲烷二胺、异佛尔酮二胺等为原料制备相应的N-取代氨基甲酸酯。通过系统表征,揭示出纳米态Fe-Ni 合金是可能的活性组分,同位素示踪反应和机理研究发现N,N’-二取代脲是反应的中间体。
  • 链接地址:http://www.ionicliquid.org/application/2014-04-14/13.html
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