Reaction temperatures for various polypropylene processing methods
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This post was last edited by chengkang on 2009-9-28 21:38. Does anyone know what the reaction temperatures are for the Unipol gas-phase process, Novolen gas-phase process, Amoco process, and Hypol process for polypropylene?
Just search on the forum for anything related to the PP process and you’ll find the answer.....
Unipol gas-phase process； The first reactor is used for homopolymerization, at a temperature of around 65 degrees and a pressure of 3.4 MP. The second reactor is used for copolymerization, at temperatures of 65–70 degrees and a pressure of 2.4 MP. In the Novolen gas-phase process, the first reactor is used for homopolymerization, at temperatures of 60–90 degrees and pressures of 2.5–3.0 MP; the second reactor is used for copolymerization at temperatures of 50–70 degrees and pressures of 1.0–2.5 MP. Under the Amoco process, the temperature is 70 degrees and the pressure is 2 MP. For the Hypol process, the first reactor operates in liquid-phase bulk polymerization at temperatures of 65–75 degrees and pressures of 3.0–4.0 MP; the second reactor operates in gas phase at a temperature of 80 degrees and a pressure of 1.7–2.0 MP, while the third reactor operates at a temperature of around 70 degrees and a pressure of 1.2 MP