51.
    发明专利
    未知

    公开(公告)号:AT249883T

    公开(公告)日:2003-10-15

    申请号:AT00903595

    申请日:2000-01-20

    Applicant: BASF AG

    Abstract: A process for working up at least partially deactivated polymerization catalysts for the polymerization or copolymerization of THF which are contaminated with the products of the polymerization or copolymerization of THF comprises(a) in a first step, cleaning the polymerization catalyst by treatment with steam at from 80 to 250° C. and a pressure of from 0.5 to 40 bar and, preferably,(b) in a second step, regenerating the clean polymerization catalyst.

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