METHODS OF FEED PURIFICATION FOR OLEFIN POLYMERIZATION
摘要
<p>A polymerization process is provided. For example, a polymerization process is described, including contacting olefin monomers with a supported metallocene catalyst to polymerize the olefin monomers and form a product mixture that includes polyolefins macromers or polymers, unreacted or partially reacted olefin monomers, alcohols and organohalides. The polymerization process further includes removing a portion of the product mixture to form a recycle stream and passing the recycle stream through a removal device comprising zeolite particles having pore size of from 6 to 16 Å to transfer at least a portion of the alcohols and organohalides from the recycle stream to the removal device providing a purified recycle stream having alcohols and organohalides in an amount of 1 ppm or less. The polymerization process may further include contacting at least a portion of the purified recycle stream with the supported metallocene catalyst to form polyolefins.</p>
申请公布号
WO2004033507(A1)
申请公布日期
2004.04.22
申请号
WO2003US29729
申请日期
2003.09.22
申请人
EXXONMOBIL CHEMICAL PATENTS INC.;VIZZINI, JAMES, C.;POWELL, TED, A.;JU, SHIAW