几种齐格勒-纳塔聚丙烯催化剂的中试评价研究

The application study of several Ziegler-Natta polypropylene catalysts

应用75 kg/h聚丙烯中试装置评价了A、B、C、D 4种聚丙烯催化剂的性能,考察了催化剂的活性、氢调敏感性、等规度、聚合物细粉等性能。结果表明,B、C、D 3种国产催化剂活性高于进口催化剂A,且3种国产催化剂的氢调敏感性好、等规指数可调,能够适应聚丙烯中试装置生产的需要,但D催化剂聚合物细粉较多。B、C、D国产催化剂生产的T30S产品,其质量能够达到标准要求。

The characteristics of the four polypropylene catalysts were evaluated with polypropylene 75 kg/h pilot plant. Tile effects of catalyst activity, hydrogen sensitivity, isotacticity, and fine polymer powder were studied. The results show that the domestic catalysts B, C and D has high activity than catalyst A. The property of hydrogen response and isotactic index can adapt to the production of polypropylene unit of the pilot test, but the D has more polymer powder. Tile production of T30S using domestic catalysts B, C and D can meet quality targets.