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    1.
    发明专利
    未知

    公开(公告)号：DE59900760D1

    公开(公告)日：2002-03-14

    申请号：DE59900760

    申请日：1999-08-31

    Applicant: BASF AG

    Inventor： OOST DR ,  STROEZEL MANFRED ,  ETZRODT DR ,  WELLER DR ,  BOCKSTIEGEL DR ,  REIMER KLAUS ,  KAIBEL DR ,  JAEDICKE DR

    IPC: B01J31/14 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  B01J10/00 ,  B01J19/24 ,  C07B61/00 ,  C07C45/67 ,  C07C45/68 ,  C07C45/82 ,  C07C49/203 ,  C07C67/54 ,  C07C69/72

    Abstract: Continuous production of 5-alken-2-one or 3,5-alkadien-2-one derivatives (I) by reacting a 1-alken-3-ol or 1-alkyn-3-ol derivative (II) with an alkyl acetoacetate (III) in a fractionation column to form an acetoacetate and alcohol involves (i) removing the alcohol and (ii) contacting the acetoacetate with catalyst in the lower part or bottom of the column to form (I). Continuous production of unsaturated ketones of formula (I) by reacting an unsaturated alcohol of formula (II) with an alkyl acetoacetate of formula (III) in the presence of an organoaluminum catalyst is carried out by: (a) reacting (II) with (III) on the plates of a fractionation column to form the acetoacetate of (II) and an alcohol of formula R OH; (b) removing the alcohol in the overhead stream from the column; (c) contacting the acetoacetate of (II) with the catalyst in the lower part or bottom of the column to form (I) and CO2; (d) removing the CO2 in the overhead stream from the column; and (e) withdrawing (I) in the bottoms stream from the column. R = 1-4C alkyl; R = 1-37C (un)saturated aliphatic hydrocarbyl (optionally substituted by methoxy groups), 4-12C cycloalkyl or 5-30C cycloalkylalkyl; and R = 1-5C alkyl.

    2.
    发明专利
    未知

    公开(公告)号：DE59611228D1

    公开(公告)日：2005-06-16

    申请号：DE59611228

    申请日：1996-06-29

    Applicant: BASF AG

    Inventor： HARTMANN HORST ,  BURST WOLFRAM ,  KAISER DR ,  LAAS DR ,  GRAFEN DR ,  BOCKSTIEGEL DR ,  BALDENIUS DR

    IPC: B01D3/00 ,  B01D3/10 ,  B01D3/14 ,  B01D3/16 ,  B01D3/26 ,  B01D3/32 ,  B01J19/32 ,  C07C17/38 ,  C07D311/72

    Abstract: Process to rectify mixts. of high-boiling air and / or temp. sensitive substances requiring a high sepn. efficiency. Process is carried out in a fine vacuum (pref. 0.1-2 mbar) in columns contg. metal fabric packing of an ordered structure. The liq. distribution is carried out by channel distributors with at least 500 drainage points per square metre. The distributor channels are arranged at around 90 degrees to the fabric layers of the packing elements directly under these distributors. Two or more packing elements of height 20-100 mm are inserted below the distributor, whose fabric layers are turned at around 90 degrees to each other. The process is run in the complete absence of air and the rectification is operated strictly adiabatically. Also claimed are columns with output and enhancement sections contg. metal fabric packing for the above process.

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