| 5-hydroxymethylfurfuran, readily available from fructose and other precursors such as glucose and sucrose, is a versatile multifunctional compound. It is known as a good raw material for the synthesis of biomass-derived fuels as well as a key platform compound for non-petroleum derived chemicals. To obtain 5-hydroxymethylfurfuran with high yield, various methods have been developed. The most convenient one is based on the acid-catalyzed dehydration of fructose in a biphasic reactor. However, the high price of fructose causes the economical limitation to the production of 5-hydroxymethylfurfuran on a large scale.The first part of this paper stated an economic process for the preparation of 5-hydroxymethylfurfural by the dehydration of sucrose in a biphasic reaction system was provided. The influence of organic phase, alcohols, acid type and pH was investigated. The factors were optimized by response surface methodology. The best yield of 5-hydroxymethylfurfural was 69%.Poly (acrylamide-co-acrylates) is a kind of important water-soluble polymer and widely used in petrochemical, dyeing, sewage treatment and other fields. Reverse microemulsion polymerization has broad industrial applications due to its high stability.The second part of this paper presented the synthesis of poly (acrylamide-co-acrylates) by reverse microemulsion polymerization. The influence of organic phase, emulsifier, hydrophile-lipophile balance, and pH was investigated. The copolymer synthesized in this paper was applied as flocculant agent. Comparing with commercial flocculant agents, it is more effective, more stable and much cheaper. |
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