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    PROCESS OF CONTINUOUS OBTAINING PURE ESTERS OF 5-FORMYLOVALERIC ACID
    3.
    发明专利
    PROCESS OF CONTINUOUS OBTAINING PURE ESTERS OF 5-FORMYLOVALERIC ACID 未知

    公开(公告)号：CZ34698A3

    公开(公告)日：1998-07-15

    申请号：CZ34698

    申请日：1996-07-26

    Applicant: BASF AG

    Inventor： ACHHAMMER GUNTHER DR ,  ROPER MICHAEL PROF DR

    IPC: C07C67/54 ,  C07C69/716

    Abstract: PCT No. PCT/EP96/03290 Sec. 371 Date Jan. 27, 1998 Sec. 102(e) Date Jan. 27, 1998 PCT Filed Jul. 26, 1996 PCT Pub. No. WO97/06126 PCT Pub. Date Feb. 20, 19975-Formylvaleric esters are prepared in a yield of not less than 90% by distillation of a formylvaleric ester mixture of 5-formylvaleric ester and either 3- or 4-formylvaleric ester or a mixture of 3- and 4-formylvaleric esters, where the ester radicals of the respective formylvaleric esters are identical, wherein the 3- or 4-formylvaleric ester or a mixture thereof is separated from the 5-formylvaleric ester in a distillation column at a pressure in the range from 2 to 100 mbar and a temperature of not above 150 DEG C. (measured as the temperature at the bottom of the column) and the esters used are the corresponding methyl or ethyl esters, where the purity of the 5-formylvaleric ester is not less than 98% and, as impurity, 4-formylvaleric ester is present in an amount of not more than 100 ppm.

    Process for the continuous preparation of pure 5-formyl valeric acid esters
    6.
    发明专利
    Process for the continuous preparation of pure 5-formyl valeric acid esters 未知

    公开(公告)号：CZ292036B6

    公开(公告)日：2003-07-16

    申请号：CZ34698

    申请日：1996-07-26

    Applicant: BASF AG

    Inventor： ACHHAMMER GUNTHER DR ,  ROPER MICHAEL PROF DR

    IPC: C07C67/54 ,  C07C69/716

    Abstract: 5-Formyl valeric acid esters are prepared in a yield of not less than 90 percent by distillation of a formyl valeric ester mixture of 5-formyl valeric acid ester and either 3- or 4-formyl valeric acid ester or a mixture of 3- and 4-formyl valeric acid esters, wherein the ester radicals of the respective formyl valeric acid esters are identical, wherein the 3- or 4-formyl valeric acid esters or a mixture thereof are separated from the 5-formyl valeric acid ester in a distillation column at a pressure in the range from 2.10e2 to 1.10e4 Pa (from 2 to 100 mbar) and a temperature of not above 150 degC (measured as the temperature at the bottom of the column) and the esters used are the corresponding methyl or ethyl esters, whereby the purity of the 5-formyl valeric acid ester is not less than 98 percent and, as impurity, 4-formyl valeric acid ester is present in an amount of not more than 100 ppm.

    METHOD FOR PRODUCING ALKYL SULPHONATES
    7.
    发明专利
    METHOD FOR PRODUCING ALKYL SULPHONATES 未知

    公开(公告)号：MY134963A

    公开(公告)日：2008-01-31

    申请号：MYPI20013767

    申请日：2001-08-10

    Applicant: BASF AG

    Inventor： MAAS HEIKO DR ,  NARBESHUBER THOMAS ,  ROPER MICHAEL PROF DR

    IPC: C07B61/00 ,  C07C15/107 ,  C07C303/06 ,  C07C303/32 ,  C07C309/31 ,  C11D1/22 ,  C11D11/04

    Abstract: THE INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF ALKYLARYLSULFONATES BY A) REACTION OF A C4-OLEFIN MIXTURE OVER A METATHESIS CATALYST FOR THE PREPARATION OF AN OLEFIN MIXTURE COMPRISING 2-PENTENE AND/OR 3-HEXENE, AND OPTIONAL REMOVAL OF 2-PENTENE AND/OR 3-HEXENE, B) DIMERIZATION OF THE 2-PENTENE AND/OR 3-HEXENE OBTAINED IN STAGE A) OVER A DIMERIZATION CATALYST TO GIVE A MIXTURE CONTAINING C10-12-OLEFINS, AND OPTIONAL REMOVAL OF THE C10-12-OLEFINS, C) REACTION OF THE C10-12-OLEFIN MIXTURES OBTAINED IN STAGE B) WITH AN AROMATIC HYDROCARBON IN THE PRESENCE OF AN ALKYLATING CATALYST TO FORM ALKYL- AROMATIC COMPOUNDS, WHERE, PRIOR TO THE REACTION, ADDITIONAL LINEAR OLEFINS MAY BE ADDED, D) SULFONATION OF THE ALKYLAROMATIC COMPOUNDS OBTAINED IN STAGE C), AND NEUTRALIZATION TO GIVE ALKYLARYLSULFONATES, WHERE, PRIOR TO THE SULFONATION, LINEAR ALKYLBENZENES MAY ADDITIONALLY BE ADDED, E) OPTIONAL MIXING OF THE ALKYLARYLSULFONATES OBTAINED IN STAGE D) WITH LINEAR ALKYLARYLSULFONATES.

    9.
    发明专利
    未知

    公开(公告)号：ID18558A

    公开(公告)日：1998-04-16

    申请号：ID973212

    申请日：1997-09-17

    Applicant: BASF AG

    Inventor： KANAND JURGEN DR ,  ROPER MICHAEL PROF DR

    IPC: B01J31/24 ,  C07B61/00 ,  C07C41/00 ,  C07C41/06 ,  C07C41/20 ,  C07C41/32 ,  C07C43/00 ,  C07C43/04 ,  D21H23/00

    Abstract: In a process for producing n-butylalkyl ethers, (a) 1,3-butadiene or a butadiene-containing hydrocarbon mixture is reacted with an alcohol of formula ROH (I), in which the radical R is a C2-C20 alkyl or alkenyl group substituted or not with 1 to 2 C1-C10 alkoxy or hydroxy groups, a C6-C10 aryl or C7-C11 aralkyl group or a methyl group, at an increased temperature and pressure in the presence of a Brönsted acid or in the presence of a complex of an element of groups Ib, VIIb or VIIIb of the periodic table of elements with a phosphorus- or nitrogen-containing ligand, yielding a mixture of addition products of formulas (II) and (III); (b) the isomers are separated; (c) addition product III is isomerised into addition product II; (d) addition product II is hydrogenated in the presence of a homogeneous or heterogeneous transition metal element catalyst in the liquid phase or in the presence of a heterogeneous, transition metal element-containing catalyst in the gas phase, yielding n-butylalkyl ether of formula (IV).

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