12.
    发明专利
    未知

    公开(公告)号:AT386732T

    公开(公告)日:2008-03-15

    申请号:AT02791483

    申请日:2002-07-30

    Applicant: BASF AG

    Abstract: A process for preparing propylene oxide comprises at least the following steps: (a) propene is reacted with hydrogen peroxide in a solvent in the presence of a suitable catalyst to give a mixture (M0) comprising propylene oxide, solvent, unreacted propene, unreacted hydrogen peroxide and oxygen, (b) the propylene oxide is separated off from the mixture (M0) so as to give a mixture (M1) comprising at least unreacted propene and oxygen, and (c) the mixture (M1) is utilized.

    15.
    发明专利
    未知

    公开(公告)号:DE50204792D1

    公开(公告)日:2005-12-08

    申请号:DE50204792

    申请日:2002-07-18

    Applicant: BASF AG

    Abstract: A process for preparing propylene oxide comprises at least the following steps: (a) propene is reacted with a hydroperoxide in a solvent in the presence of a zeolite catalyst to give a mixture (M 0 ), where the mixture (M 0 ) comprises propylene oxide, solvent, unreacted propene, unreacted hydroperoxide and oxygen, (b) the propylene oxide is separated from the mixture (M 0 ) so as to give a mixture (M 1 ) which comprises unreacted propene and oxygen, (c) the mixture (M 1 ) is brought into contact with a liquid medium comprising at least a solvent to give the mixtures (M 2 ) and (M 3 ), where the mixture (M 3 ) comprises part of the unreacted propene and oxygen and the mixture (M 2 ) comprises solvent and residual propene, and the mixture (M 3 ) which has been separated off and comprises unreacted propene and oxygen has a ratio of oxygen to propene such that the mixture (M 3 ) is not ignitable, and the mixture (M 2 ) is fed to at least one reaction of propene with hydroperoxide.

    20.
    发明专利
    未知

    公开(公告)号:BR0211574A

    公开(公告)日:2004-06-29

    申请号:BR0211574

    申请日:2002-07-30

    Applicant: BASF AG

    Abstract: A process for preparing propylene oxide comprises at least the following steps: (a) propene is reacted with hydrogen peroxide in a solvent in the presence of a suitable catalyst to give a mixture (M0) comprising propylene oxide, solvent, unreacted propene, unreacted hydrogen peroxide and oxygen, (b) the propylene oxide is separated off from the mixture (M0) so as to give a mixture (M1) comprising at least unreacted propene and oxygen, and (c) the mixture (M1) is utilized.

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