Method for removing residual hydrogenation catalyst after hydrogenation for nonsaturated polymers

Method for removing residual hydrogenation catalyst after hydrogenation for nonsaturated polymers

  • CN 101,333,264 A
  • Filed: 06/25/2007
  • Published: 12/31/2008
  • Est. Priority Date: 06/25/2007
  • Status: Active Application
First Claim
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1. method of removing residual hydrogenation catalyst after hydrogenation for nonsaturated polymers is characterized in that this hydrogenation catalyst comprises and has formula Al (R) 3Trialkylaluminium as promotor, wherein three R are identical or different independently of one another and be selected from the branched-chain or straight-chain alkyl with 1~

  • 6 carbon atom and have the cycloalkyl of 3~

    6 carbon atoms, this method comprises in the polymeric system after hydrogenation and adds entry, mix, form precipitation, remove precipitation by centrifugation then, thereby remove described remaining hydrogenation catalyst, and the addition of water is 0.01~

    10 volume % based on the volume of the polymeric system after the hydrogenation.

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