Method for continuously producing hydroxylammonium salts

    公开(公告)号:SK7322003A3

    公开(公告)日:2003-12-02

    申请号:SK7322003

    申请日:2001-12-12

    Applicant: BASF AG

    Abstract: A process for the continuous preparation of hydroxylammonium salts by catalytic reduction of nitrogen monoxide by means of hydrogen in a dilute aqueous solution of mineral acid in a plurality of reaction stages connected in series comprises dividing the incoming stream of dilute aqueous solution of mineral acid into at least two substreams before it is fed into the plurality of reaction stages connected in series, feeding a first of these substreams to the first reaction stage, feeding a second of these substreams to a reaction stage other than the first, where the inflow of dilute aqueous solution of mineral acid into the plurality of reaction stages connected in series is controlled by means of the pH in this reaction stage other than the first.

    Method for continuously producing hydroxylammonium salts

    公开(公告)号:AU3576902A

    公开(公告)日:2002-06-24

    申请号:AU3576902

    申请日:2001-12-12

    Applicant: BASF AG

    Abstract: A process for the continuous preparation of hydroxylammonium salts by catalytic reduction of nitrogen monoxide by means of hydrogen in a dilute aqueous solution of mineral acid in a plurality of reaction stages connected in series comprises dividing the incoming stream of dilute aqueous solution of mineral acid into at least two substreams before it is fed into the plurality of reaction stages connected in series, feeding a first of these substreams to the first reaction stage, feeding a second of these substreams to a reaction stage other than the first, where the inflow of dilute aqueous solution of mineral acid into the plurality of reaction stages connected in series is controlled by means of the pH in this reaction stage other than the first.

    24.
    发明专利
    未知

    公开(公告)号:AT328876T

    公开(公告)日:2006-06-15

    申请号:AT03790944

    申请日:2003-08-29

    Applicant: BASF AG

    Abstract: The present invention relates to an integrated process for the synthesis of propylene oxide, which comprises at least the following steps: (i) dehydrogenation of propane to give a substream T( 0 ) comprising at least propane, propene and hydrogen; (ii) fractionation of the substream T( 0 ) to give at least one gaseous hydrogen-rich substream T( 2 ) and a substream T( 1 ) comprising at least propene and propane; (iii) synthesis of hydrogen peroxide using the substream T( 2 ), giving a substream T ( 4 ) which is rich in hydrogen peroxide and a gaseous substream T( 6 ); (iv) fractionation of the substream T( 1 ) to give at least one propane-rich substream T( 5 ) and at least one propene-rich substream T( 3 ); (v) reaction of the at least one substream T( 3 ) with substream T( 4 ) to give propylene oxide.

    INTEGRATED PROCESS FOR THE SYNTHESIS OF PROPYLENE OXIDE

    公开(公告)号:CA2496954A1

    公开(公告)日:2004-03-11

    申请号:CA2496954

    申请日:2003-08-29

    Applicant: BASF AG

    Abstract: The invention relates to an integrated method for synthesising propylene oxide, said method comprising at least the following steps: (i) dehydrogenation of propane to obtain a partial stream T (0), which contains at least propane, propene and hydrogen; (ii) separation of the partial stream T (0) to obtain at least one gaseous partial stream T (2) with a high hydrogen content and a partial stream T (1), which contains at least propene and propane; iii) hydrogen peroxide synthesis using the partial stream T (2), to produce a partial stream T (4) with a high hydrogen peroxide content and a gaseous partial stream T (6); (iv) separation of the partial stream T (1) to obtain at least one partial stream T (5) with a high propane content and at least one partial stream T (3) with a high propene content; (v) reaction of the partial stream(s) T (3) with partial stream T (4) to obtain propylene oxide.

    30.
    发明专利
    未知

    公开(公告)号:DE19950325A1

    公开(公告)日:2001-04-26

    申请号:DE19950325

    申请日:1999-10-19

    Applicant: BASF AG

    Abstract: Production of a spinel monolith catalyst comprises forming or coating a molded body, especially a monolith with a surface active composition; impregnating the monolith with a solution of a compound of group 5b elements in the form of oxides or salts; and drying and optionally calcining. Production of a spinel monolith catalyst comprises forming or coating a molded body, especially a monolith with a surface active composition of formula: AxB(1-x)E2O4 (where: A = copper, half of which can be replaced by cobalt, iron, nickel manganese or chromium; B = zinc, magnesium, calcium, zirconium, cerium, tin, titanium, vanadium, molybdenum or tungsten; E = aluminum, half of which can be replaced by Fe2O3, Cr2O3, Ga2O3 or La2O3; and x = 0-0.9); impregnating the monolith with a solution of a compound of group 5b elements in the form of oxides or salts; and drying and optionally calcining.

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