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 B
  • Filed: 06/25/2007
  • Issued: 06/27/2012
  • Est. Priority Date: 06/25/2007
  • Status: Active Grant
First Claim
Patent Images

1. method of removing residual hydrogenation catalyst after hydrogenation for nonsaturated polymers;

  • It is characterized in that this hydrogenation catalyst comprise have formula Al (R) 3 trialkylaluminium as promotor;

    Wherein three R are identical or different independently of one another and be selected from branched-chain or straight-chain alkyl with 1~

    6 carbon atom and have the naphthenic base of 3~

    6 carbon atoms, and this method comprises in the polymeric system to hydrogenation after and adds entry, is mixing 30~

    60min under 60~

    70 ℃

    the temperature and under the gauge pressure of 0.01-0.02MPa;

    Form deposition;

    Remove deposition through spinning then, thereby remove said remaining hydrogenation catalyst, and the addition of water is 0.01~

    1 volume % based on the volume of the polymeric system after the hydrogenation;

    The rotating speed of said spinning is that 2000-15000rpm and centrifugation time are 10-30min.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×