METHOD FOR PRODUCING ALKENYLPHOSPHONIC ACID DERIVATIVE

    公开(公告)号:JP2002179691A

    公开(公告)日:2002-06-26

    申请号:JP2001338322

    申请日:2001-11-02

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide an improved method for producing an alkenylphosphonic acid derivative. SOLUTION: This method for producing the alkenylphosphonic acid derivative comprises reacting a phosphonic acid derivative with an alkyne in the presence of a metal complex catalyst system containing (a) nickel and (b) a phosphine having at least two trivalent phosphorus atoms.

    METHOD FOR THE PRODUCTION OF ORTHOESTERS
    3.
    发明申请
    METHOD FOR THE PRODUCTION OF ORTHOESTERS 审中-公开
    于制备原酸酯

    公开(公告)号:WO2005042443A3

    公开(公告)日:2005-07-28

    申请号:PCT/EP2004012097

    申请日:2004-10-26

    CPC classification number: C07C41/60 C07C43/32

    Abstract: The invention relates to a method for the production of orthoesters, wherein a first orthoester and a first alcohol are guided into a rectification column such that in at least one area of the column the first orthoester and the first alcohol react with a second orthoester and a second alcohol, and the second orthoester and the second alcohol are removed from the reaction area.

    Abstract translation: 本发明公开了用于制备原酸酯,其中一个引入第一原酸酯和在精馏塔中这样的条件下,即在列中,第一原酸酯与第一醇到第二原酸酯和第二醇的至少一个区域的反应下的第一醇的方法,和 第二原酸酯与从反应区中连续地去除第二醇。

    4.
    发明专利
    未知

    公开(公告)号:AT381527T

    公开(公告)日:2008-01-15

    申请号:AT04727886

    申请日:2004-04-16

    Applicant: BASF AG

    Abstract: A process for continuously preparing methyl vinyl ether by reacting methanol with ethyne in the liquid phase in the presence of a basic alkali metal or alkaline earth metal compound at a temperature of from 40 to 300° C. and a pressure of from 0.1 to 5 MPa abs, by carrying out the reaction in the absence of a continuous gas phase and at a methyl vinyl ether concentration in the entire liquid phase of

    6.
    发明专利
    未知

    公开(公告)号:DE502004005760D1

    公开(公告)日:2008-01-31

    申请号:DE502004005760

    申请日:2004-04-16

    Applicant: BASF AG

    Abstract: A process for continuously preparing methyl vinyl ether by reacting methanol with ethyne in the liquid phase in the presence of a basic alkali metal or alkaline earth metal compound at a temperature of from 40 to 300° C. and a pressure of from 0.1 to 5 MPa abs, by carrying out the reaction in the absence of a continuous gas phase and at a methyl vinyl ether concentration in the entire liquid phase of

    7.
    发明专利
    未知

    公开(公告)号:DE502004005217D1

    公开(公告)日:2007-11-22

    申请号:DE502004005217

    申请日:2004-06-08

    Applicant: BASF AG

    Abstract: Process for distillatively separating a mixture containing a vinyl ether of the general formula (I) R1—O—CH═CH2  (I) and alcohol of the general formula (II) R2—OH  (II) in which R1 and R2 are each independently a saturated or unsaturated, aliphatic or cycloaliphatic radical having from 2 to 10 carbon atoms, and in which the alcohol (II) has a boiling point which is at least 1° C. higher, measured at or extrapolated to 0.1 MPa abs, than the vinyl ether (I), by a) passing the mixture into a first distillation column and withdrawing, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II) and, as a bottom product, a stream enriched with the alcohol (II); b) passing the azeotrope containing vinyl ether (I) and alcohol (II) from the first distillation column into a second distillation column which is operated at a pressure which is from 0.01 to 3 MPa higher compared to the first distillation column, and withdrawing, as a bottom product or gaseous sidestream in the stripping section, the vinyl ether (I) and, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II); and c) recycling the azeotrope containing vinyl ether (I) and alcohol (II) from the second distillation column into the first distillation column.

    8.
    发明专利
    未知

    公开(公告)号:AT375328T

    公开(公告)日:2007-10-15

    申请号:AT04739689

    申请日:2004-06-08

    Applicant: BASF AG

    Abstract: Process for distillatively separating a mixture containing a vinyl ether of the general formula (I) R1—O—CH═CH2  (I) and alcohol of the general formula (II) R2—OH  (II) in which R1 and R2 are each independently a saturated or unsaturated, aliphatic or cycloaliphatic radical having from 2 to 10 carbon atoms, and in which the alcohol (II) has a boiling point which is at least 1° C. higher, measured at or extrapolated to 0.1 MPa abs, than the vinyl ether (I), by a) passing the mixture into a first distillation column and withdrawing, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II) and, as a bottom product, a stream enriched with the alcohol (II); b) passing the azeotrope containing vinyl ether (I) and alcohol (II) from the first distillation column into a second distillation column which is operated at a pressure which is from 0.01 to 3 MPa higher compared to the first distillation column, and withdrawing, as a bottom product or gaseous sidestream in the stripping section, the vinyl ether (I) and, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II); and c) recycling the azeotrope containing vinyl ether (I) and alcohol (II) from the second distillation column into the first distillation column.

    Method for producing a propargyl alcohol and an allyl alcohol

    公开(公告)号:SK1262006A3

    公开(公告)日:2007-02-01

    申请号:SK1262006

    申请日:2005-02-19

    Applicant: BASF AG

    Abstract: Process for preparing a propargyl alcohol of the formula I in which R 1 is a C 130 -alkyl, C 3-8 -cycloalkyl, C 2-20 -alkoxyalkyl, C 6-14 -aryl, C 7-20 -alkoxyarl, C 7-20 -aralkyl, C 7-20 -alkylaryl radical or H, by reacting a corresponding aldehyde of the formula R 1 -CHO with acetylene in the presence of ammonia and a catalytic amount of an alkali metal hydroxide, alkaline earth metal hydroxide or alkali metal alkoxide in the range from 0.6 to 10 mol % based on the aldehyde used, and also processes for preparing an allyl alcohol of the formulae II and III starting from the propargyl alcohol I prepared in accordance with the invention.

    10.
    发明专利
    未知

    公开(公告)号:BR0316829A

    公开(公告)日:2005-10-18

    申请号:BR0316829

    申请日:2003-12-03

    Applicant: BASF AG

    Abstract: A continuous process for preparing sugar alcohols by catalytic hydrogenation of an aqueous solution of a saccharide, which forms the corresponding sugar alcohol on hydrogenation, in the presence of a ruthenium catalyst which is obtainable by: i) single or multiple treatment of an amorphous silicon-dioxide-based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200° C., ii) reducing the solid obtained in i) with hydrogen at from 100 to 350° C., step ii) being carried out immediately after step i), which comprises, before the hydrogenation, bringing the aqueous saccharide solution to be hydrogenated into contact with the support material.

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