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MHT CET202123 Sep 2021Evening ShiftChemistryPolymersActual

Identify catalyst used in manufacturing of HDP.

Options

  1. AZieglar - Natta
  2. BPeroxides
  3. CLindlar's
  4. DMagnesium oxide

Correct answer

A. Zieglar - Natta

Step-by-step solution

HDP means high density polyethylene. It is a linear polymer with high density due to close packing. HDP is obtained by polymerization of ethane in presence of Zieglar-Natta catalyst which is a combination of triethyl aluminium with titanium tetrachloride at a temperature of 333 ~K to 343 ~K and a pressure of 6-7 atm .

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