Compared with CMMS method,the primary catalyst dosage can be reduced from 78 g to 53 g per reactor,the polypropylene products with melt index 0.2~0.3 g/10 min are produced easily by control of no hydrogen addition.

• 与甲基环已基二甲氧基硅烷(CMMS)生产低熔指聚丙烯相比；单釜主催化剂用量由78 g降至53g；并在绝氢状况下熔融指数更易控制在0.；2-0