Investigating the effect of co‑catalyst on the final product properties and the yield of ziegler–natta catalyst in propylene polymerization in optimum temperature reaction in absence of hydrogen via mathematical model

摘要

Co-catalyst has several roles in propylene polymerization such as site activation, chain transfer, site transformation andPoisson deactivation (or Poisson scavenger). These functionalities strongly impact the most important of the final productproperties indices namely the number and weight average. Molecular weight, polydispersity index, melt flow index andeven the yield of Ziegler–Natta catalyst. Therefore, the Co-catalyst role as an independent process variable should be carefullyinvestigated in the polymerization. In this study, investigating the co-catalyst effects on the final properties indicesand the yield of the catalyst as the existing gap was defined as the aims of this study. We attempt to reply to the problemsin a proper way in the absence of hydrogen and at the optimal temperature reaction by proposing a newly developedmathematical model. This model was programmed in MATLAB & Simulink software, then was validated by using experimentaldata. Through the model, the optimal amount of the used co-catalyst could be determined conveniently.