Research On Polymerization Process Of EPR With Solution Method

Both ethylene and propylene are market scarce resources, At present the world attaches great importance to the development of ethylene propylene rubber technology and its comprehensive utilization. At the same time due to the changes of ethylene and propylene production capacity and product markets, Chinese ethylene propylene rubber products are growing significantly.Ethylene propylene rubber is produced by solution polymerization process in solvent hexane. Ethylene, propylene and olefin copolymer react according to mechanism of coordination polymerization reaction under the Ziegler-Natta catalyst. The main catalyst is vanadium oxychloride, the auxiliary catalyst is alkyl aluminium. Vanadium oxychloride and alkyl aluminium react first to create active centers. Then the active centers cause polymerization reaction among monomers. The active center is composed of vanadium and aluminum compounds, and can be dissolved in hexane.In This paper we simulate the whole process of ethylene propylene rubber technology by using the sequential modular approach and process simulation software PROâ…¡. First, confirm the product raw material compositions and the utilities. Secondly, select the suitable unit module, the system thermodynamic equation and the solving methods according to the characteristics, meanwhile determine the process parameters based on the experimental data. Simulation results show that the process simulation results are identical with the experimental data, thus the ethylene propylene rubber process model is established.This technology forms a certain amount of solute through catalytic reaction by virtue of certain soluble catalysts, taking appropriate polymerization in the solution to make the EPR form a certain physical form. Then extract again to make the content reache a certain proportion.