中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

12 records (took 0.022 seconds)

    PROCESO PARA LA FABRICACION DE UN EPOXIDO.
    1.
    发明专利
    PROCESO PARA LA FABRICACION DE UN EPOXIDO. 未知

    公开(公告)号：MXPA03007012A

    公开(公告)日：2004-04-02

    申请号：MXPA03007012

    申请日：2002-02-06

    Applicant: BASF AG

    Inventor： NORBERT RIEBER

    IPC: C07D301/12 ,  C07D301/19 ,  C07D301/32 ,  C07D303/04

    Abstract: Un compuesto organico que tiene al menos un enlace doble C-C se epoxida por medio de peroxido de hidrogeno en presencia de al menos un compuesto con actividad catalitica y al menos un disolvente, en donde una mezcla de productos que contiene a-hidroperoxialcoholes se reduce utilizando al menos un agente reductor. El proceso consiste ventajosamente en al menos los siguientes pasos: (i) la reaccion de un compuesto organico que tenga al menos un doble enlace C-C con peroxido de hidrogeno en presencia de al menos un compuesto con actividad catalitica y al menos un disolvente para obtener una mezcla de productos P1 que contenga a-hidroperoxialcoholes; (ii) separar un epoxido formado en la reaccion del paso (i) y el compuesto organico sin reaccionar que tiene al menos un doble enlace C-C a partir de P1 o P1' para obtener una mezcla de productos P2 o P2', en donde P2 contiene los a-hidroperoxialcoholes formados como subproducto en la reaccion del paso (i), y P2' esta practicamente libre de a-hidroperoxialcoholes; iii) tratar P1 y/o P2 con al menos un agente reductor de modo que los a-hidroperoxialcoholes se conviertan en los glicoles correspondientes para obtener una mezcla de productos P1' o P3.

    PREPARACION DE OXIDO DE PROPILENO.
    2.
    发明专利
    PREPARACION DE OXIDO DE PROPILENO. 未知

    公开(公告)号：MXPA04000782A

    公开(公告)日：2004-05-21

    申请号：MXPA04000782

    申请日：2002-07-30

    Applicant: BASF AG

    Inventor： NORBERT RIEBER

    IPC: C07D301/12 ,  C07D301/32

    Abstract: Un proceso para preparar oxido de propileno comprende cuando menos los siguientes pasos: (a) se hace reaccionar propeno con peroxido de hidrogeno en un solvente en presencia de un catalizador apropiado para proporcionar una mezcla (M0) que comprende oxido de propileno, solvente, propeno no reaccionado, peroxido de hidrogeno no reaccionado y oxigeno, b) el oxido de propileno separa de la mezcla (M0) de manera de proporcionar una mezcla (M1) que comprende cuando menos propeno no reaccionado y oxigeno, y c) la mezcla de (M1) se utiliza.

    METHOD FOR PRODUCING AN EPOXIDE.
    4.
    发明专利
    METHOD FOR PRODUCING AN EPOXIDE. 未知

    公开(公告)号：MX243899B

    公开(公告)日：2007-02-28

    申请号：MXPA03007012

    申请日：2002-02-06

    Applicant: BASF AG

    Inventor： NORBERT RIEBER

    IPC: C07D301/12 ,  C07D301/19 ,  C07D301/32

    Abstract: An organic compound having at least one C-C double bond is epoxidized by means of hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent, wherein a product mixture comprising alpha-hydroperoxyalcohols is reduced using at least one reducing agent. The process advantageously comprises at least the following steps: (i) reacting an organic compound having at least one C-C double bond with hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent to give a product mixture P1 comprising alpha-hydroperoxyalcohols; (ii) separating an epoxide formed in the reaction in step (i) and the unreacted organic compound having at least one C-C double bond from P1 or P1' to give a product mixture P2 or P2', where P2 comprises the alpha-hydroperoxyalcohols formed as by-product in the reaction in step (i) and P2' is largely free of alpha-hydroperoxyalcohols; (iii) treating P1 and/or P2 with at least one reducing agent so that the alpha-hydroperoxyalcohols are converted into corresponding glycols to give a product mixture P1' or P3.

    METHOD FOR PRODUCING PROPYLENE OXIDE.
    5.
    发明专利
    METHOD FOR PRODUCING PROPYLENE OXIDE. 未知

    公开(公告)号：MX240869B

    公开(公告)日：2006-10-09

    申请号：MXPA04000099

    申请日：2002-07-18

    Applicant: BASF AG

    Inventor： NORBERT RIEBER

    IPC: C07D301/12

    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.

    METHOD FOR THE PRODUCTION OF PROPYLENE OXIDE.
    9.
    发明专利
    METHOD FOR THE PRODUCTION OF PROPYLENE OXIDE. 未知

    公开(公告)号：MX259402B

    公开(公告)日：2008-08-08

    申请号：MXPA04000782

    申请日：2002-07-30

    Applicant: BASF AG

    Inventor： NORBERT RIEBER

    IPC: C07D301/12 ,  C07D301/32

    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.

Patent Agency Ranking