Chap._300006 - (low boiling point hydrocarbons such as...

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* HDPE Preparation In 1953 Ziegler in Germany discovered method to prepare high PE whereby high pressure could be avoided. The first plant using Ziegler process came on stream in 1955 by Hoechst A. G. (Germany) whilst the first Phillip and Standard Oil plants (USA) began production in 1957 and 1961.
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Unformatted text preview: (low boiling point hydrocarbons, such as isobutane) Transition metal coordination polymerization (using Ziegler-Natta or Metallocene Catalysts) solution or slurry or gas-phase HDPE (2-4 atm) x-(CH 2-CH 2 ) -50-110 o C CH 2 =CH 2 + Solvent...
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