Cr_2O_3-TiCl_4复合催化剂的乙烯气相聚合中试评价

STUDY ON THE EVALUATION OF C_r2O_3-TiCl_4 COMPOSITE CATALYST BY THE PILOT EXPERIMENTAL DEVICE OF THE GAS PHASE ETHYLENE POLYMERIZATION

在50kg/h气相全密度聚乙烯中试装置上,对自制的Cr2O3-TiCl4复合催化剂进行了活性、共聚性、氢调敏感性考察,并在相同条件下与UCAT A催化剂进行对比,同时对中试产品及其薄膜制品进行性能测试,采用DSC、GPC、NMR等表征手段对两种中试产品结构进行对比表征,寻找出两种产品微观结构的差异,以此为依据解释了造成制品性能差异的原因。

The evaluation of self-made Cr2O3-TiCl4 composite catalyst was inspected on the 50 kg/h gas phase full density polyethylene pilot plant,which contained the catalyst activity,copolymerization and hydrogen sensitivity.The contrast between the self-made composite catalyst and the UCAT A catalyst was also made under same conditions.The property of the test products and the films made by them was tested.The construction of the two test products was characterized by DSC,GPC and NMR.Differences of the microstructure between the two test products were searched,which could explain the performance differences existed between the two products.