Polyacrylamide production process Acrylamide (AM) is the main raw material for the production of polyacrylamide (PAM). The quality of acrylamide directly affects the effect and quality of the synthesized PAM. At present, the industrial production of acrylamide mainly uses chemical methods and biochemical Act two. Chemical method is acrylonitrile as raw material, the use of framework copper catalyst system, the use of direct hydration production of acrylamide. Acrylamide is the second generation of synthetic technology. The acrylamide acrylonitrile produced by the technology has high conversion rate, good product quality, no by-products, low energy consumption and less waste of three wastes. Biochemical method using biological enzyme as a catalyst, acrylonitrile, water and biological catalyst formulated into a hydration solution, after the catalytic reaction was isolated catalyst can be acrylamide products. Compared with the chemical method, Acrylonitrile has a higher conversion rate of 99.99%, no side reaction, no ion exchange, simpler separation and purification operation, no need of enrichment operation, simpler operation process, less equipment investment and high production efficiency Suitable for the production of high viscosity of ultra-high molecular weight polyacrylamide.