Acrylamide

Biological Preparation of Acrylamide. Department of acrylonitrile, raw water and immobilized biocatalysts deployment into a hydration solution. After the catalytic reaction can be isolated from spent catalyst is characterized by acrylamide product: the reaction at room temperature and atmospheric pressure. Equipment is simple, safe operation; enzyme specificity can selectively high. No side effects. When using J-1 bacteria. The Deoxycholic acid reaction temperature is 5 ~ 15 ℃, pH 7 to 8, the reaction zone acrylonitrile mass fraction of 1% 2% conversion rate of 99.99% of acrylonitrile, acrylamide and 99.98% selectivity. The outlet concentration of acrylamide is close to 50%: inactivation of the enzyme catalyst discharged outside the system is less than 0.1% of the product: no ion exchange processing, the separating and refining operations greatly simplified: the high product concentration. No Concentration of operation: the whole process is simple, which will help small-scale production. Biochemical technology was first on the East by the Japanese chemical company in 1985 and industrial production. Size of 4 000 t / a 1991 had reached 1.4 million t / a scale. Acrylamide microbiological method to create the bulk of domestic production of bio-chemical products, materials, precedent, breaking the national high molecular weight, ultra-high molecular weight polyacrylamide production technology and broaden its applications. From the point of product purity, chemical Acrylamide in trace amounts of copper ions and other metal ions. Reactivity by the effects of certain microbiological method does not exist the problem of acrylamide. Reactivity is very high. The reactivity of the decision made by using derivatives of acrylamide in the reaction rate and yield as high purity. Thus aggregation is high. Particularly suitable for the production of "EOR" by polyacrylamide another. From a cost point of view. Consumption of raw materials is only one. Microbiological method to great advantage. Acrylonitrile consumption was 0.76 t / t. The chemical method is 0.82 t / t. Ton or more particularly the scale of its cost advantages will become more apparent. It can be said microbe fundamental "Down," a chemical in the long run. Microbiological method will certainly replace the chemical method. This is only a matter of time.