PRESSURE SETTLING OF MESOPHASE
    5.
    发明专利

    公开(公告)号:CA1268723A

    公开(公告)日:1990-05-08

    申请号:CA538839

    申请日:1987-06-04

    Applicant: CONOCO INC

    Inventor: ROMINE HUGH E

    Abstract: PRESSURE SETTLING OF MESOPHASE A mesophase pitch suitable for carbon fiber production is produced by heat soaking a heavy aromatic hydrocarbon feedstock at conditions such that a substantial part of the feedstock is converted to mesophase pitch. The mesophase pitch is separated from the heat soaked material by settling at a pressure higher than the pressure of the heat soaking step. In one embodiment, separate mesophase pitches having different properties can be recovered from the heat soaked feedstock.

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