Technical progress and development tendency of polypropylene production technologies

The recent progress in research and development on technologies and catalysts of polypropylene(PP) were reviewed in this paper.The technology of multizone circulating reactor and bimodal PP were predicted to take the dominant position in production of PP.Z-N catalysts would continue to develop in the direction of forming a series product and possessing high performance.The single active site catalyst of non-metallocene will become a focal point of research and development with the widening application of metallocene catalyst.