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    • 4. 发明申请
    • Process for producing bimodal polyethylene resins
    • 生产双峰聚乙烯树脂的方法
    • US20060189768A1
    • 2006-08-24
    • US11410169
    • 2006-04-24
    • Philippe Marechal
    • Philippe Marechal
    • C08G85/00
    • B01J19/1837B01J2219/0004C08F10/02C08F2/001C08F2/14
    • A process for producing bimodal polyethylene resins in two reactors in series, the process comprising producing a first polyethylene resin fraction in a first slurry loop reactor in a diluent in the presence of a catalyst and producing a second polyethylene resin fraction in a second slurry loop reactor, serially connected to the first reactor, in the diluent in the presence of the catalyst, the first polyethylene resin fraction being passed from the first reactor to the second reactor together with the catalyst, one of the first and second reactors producing a resin fraction of higher molecular than the resin fraction produced by the other of the first and second reactors, characterised in that the first reactor is fed with a feed of ethylene and diluent having an ethylene content of at least 70 wt % based on the weight of the diluent and in that in the first reactor the slurry of polyethylene in the diluent has a solids content of at least 30 wt % based on the weight of the dilent.
    • 一种在两个反应器中串联生产双峰聚乙烯树脂的方法,该方法包括在催化剂存在下在稀释剂中在第一浆料环管反应器中制备第一聚乙烯树脂部分,并在第二浆料环管反应器中制备第二聚乙烯树脂部分 在催化剂存在下,在稀释剂中串联连接到第一反应器,第一聚乙烯树脂部分与催化剂一起从第一反应器通到第二反应器,第一和第二反应器之一产生树脂部分 比由第一和第二反应器中的另一个反应器产生的树脂分数高,其特征在于,第一反应器以基于稀释剂重量计至少70重量%的乙烯含量和乙烯含量的稀释剂进料, 因为在第一反应器中,稀释剂中的聚乙烯浆料的固体含量至少为30重量%,基于稀释剂的重量。