| http://www.w3.org/ns/prov#value | - ay result in excessive catalystcarryover into the recycle line where polymerization may begin and plugging of the line and heat exchanger may eventually occur.A gas which is inert to the catalyst such as nitrogen or argon is used to carry the partially or completely reduced precursor composition, and any additional activator compound or non-gaseous chain transfer agent that is needed, into the bed
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