Polypropylene reinvented: Costs of using metallocene catalysts

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This study develops scoping estimates of the required capital investment and manufacturing costs to make a zirconocene catalyst/cocatalyst system [(F{sub 6}-acen)Zr(CH{sub 2}CMe{sub 3})(NMe{sub 2}Ph)][B(C{sub 6}F{sub 5}){sub 4}] immobilized on a silica support. Costs for this fluorine-based system are compared with estimates for two other metallocene catalysts using methylaluminoxane (MAO)-based cocatalysts. Including wt of support and cocatalyst, each of the production facilities for making the 3 zirconocene catalyst systems is sized at 364--484 tonnes/year. Cost to make the F-based catalyst system is estimated to be $10780/kg, assuming 20% return on capital invested. Costs for the two MAO-based catalyst system fall in ... continued below

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9 p.

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Brockmeier, N.F. May 1, 1996.

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Description

This study develops scoping estimates of the required capital investment and manufacturing costs to make a zirconocene catalyst/cocatalyst system [(F{sub 6}-acen)Zr(CH{sub 2}CMe{sub 3})(NMe{sub 2}Ph)][B(C{sub 6}F{sub 5}){sub 4}] immobilized on a silica support. Costs for this fluorine-based system are compared with estimates for two other metallocene catalysts using methylaluminoxane (MAO)-based cocatalysts. Including wt of support and cocatalyst, each of the production facilities for making the 3 zirconocene catalyst systems is sized at 364--484 tonnes/year. Cost to make the F-based catalyst system is estimated to be $10780/kg, assuming 20% return on capital invested. Costs for the two MAO-based catalyst system fall in the range of $10950--12160/kg, assuming same return. Within the {plus_minus}50% accuracy of these estimates, these differences are not significant. Given a catalyst productivity of 250 kg resin/gram zirconocene, the cost contribution in the finished ethylene-propylene copolymer resin is 4.4 cents/kg, excluding selling, administrative, research costs.

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9 p.

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OSTI as DE96009161

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  • Antec `96: SPE conference, Indianapolis, IN (United States), 5-10 May 1996

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  • Other: DE96009161
  • Report No.: ANL/ES/CP--89395
  • Report No.: CONF-9605151--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 224331
  • Archival Resource Key: ark:/67531/metadc668324

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  • May 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 15, 2015, 6:49 p.m.

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Brockmeier, N.F. Polypropylene reinvented: Costs of using metallocene catalysts, article, May 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc668324/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.