SOLID-LIQUID REACTION
    11.
    发明专利

    公开(公告)号:PL368982A1

    公开(公告)日:2005-04-04

    申请号:PL36898202

    申请日:2002-08-29

    Applicant: BASF AG

    Abstract: A process for carrying out a liquid/solid reaction comprises a) preparing a reaction suspension in which a first reactant is present in suspended form and a second reactant is present in dissolved form in a suspension medium, where one of the reaction products is insoluble in the suspension medium, b) passing the reaction suspension through an elongated reaction zone so that the Reynolds number of the stream is less than 20,000 and c) separating off the insoluble reaction product formed. The process has the advantage that the insoluble reaction product is obtained in a readily filterable form.

    13.
    发明专利
    未知

    公开(公告)号:DE19652241A1

    公开(公告)日:1998-06-18

    申请号:DE19652241

    申请日:1996-12-16

    Applicant: BASF AG

    Abstract: A new modification of non-metallised phthalocyanine (IA) has substantial lines in the x-ray powder diagram (CuKa) at 2&thetas; angles of 5.0, 8.3, 9.6, 13.0, 14.4, 16.8, 21.5, 24.2 and 26.8 degrees . Also claimed is a method for directed synthesis of non-metallised phthalocyanine (I) by reductive cyclisation of ortho-phthalodinitrile (o-PDN) in the presence of an aliphatic alcohol, redox catalyst and inorganic base, in which cyclisation is carried out in the presence of specified phthalocyanine derivative(s) (II) to regulate the modification formed.

    16.
    发明专利
    未知

    公开(公告)号:DE50210903D1

    公开(公告)日:2007-10-25

    申请号:DE50210903

    申请日:2002-12-03

    Applicant: BASF AG

    Abstract: A process is described for preparing ammonium salts of aromatic carboxylic acids by reacting an aromatic carboxylic acid with ammonia in an aprotic solvent, which comprises carrying out the reaction in a closed vessel by continuously introducing a solution of the aromatic carboxylic acid in the aprotic solvent and passing in gaseous ammonia so that an ammonia partial pressure in the range from 0.1 to 3 bar is maintained in the gas space of the vessel, and discharging a suspension of the ammonium salt in the aprotic solvent. The process allows the preparation of ammonium salts of defined crystal size having a narrow size distribution.

    17.
    发明专利
    未知

    公开(公告)号:DE50307975D1

    公开(公告)日:2007-09-27

    申请号:DE50307975

    申请日:2003-11-11

    Applicant: BASF AG

    Abstract: A solid pigment preparation contains by wt. (a) a pigment (60-95%); (b) a water-soluble anionic surfactant (5-40%) which is a polymer of an ethylenically unsaturated mono- and/or di-carboxylic acid optionally copolymerized with an acid function-free vinyl monomer, the alkoxylation product of such a (co)polymer or a salt of the (co)polymer or its alkoxylation product; and (c) a polyether-based nonionic surfactant (0-20%). An Independent claim is also included for production of the pigment preparation by wet comminuting pigment (A) in a suspension containing at least a part of (B) and optionally also component (C) and then optionally adding any remainder of (B) and/or (C) and drying the mixture.

    LIQUID DIRECT DYE FORMULATIONS
    18.
    发明专利

    公开(公告)号:CA2628706A1

    公开(公告)日:2007-05-24

    申请号:CA2628706

    申请日:2006-11-13

    Applicant: BASF AG

    Abstract: The present invention relates to aqueous liquid formulations comprising 5-30% by weight of a dye composition comprising 25-85% by weight of Direct Brown 44 15-75% by weight of Direct Yellow 11 and/or of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 0-15% by weight of one or more blue direct dyes and 0-10% by weight of one or more red direct dyes all based on the dye composition 0.5-15% by weight of one or more alkylamines whose one, two or three alkyl radicals may each be substituted by one or two hydroxyl groups and/or amino groups and/or interrupted by one or two oxygen atoms in ether function, based on the total weight of the aqueous liquid formulation, the sodium content of the liquid formulation not exceeding 0.3% by weight, and also their use for dyeing cellulose material especially paper.

    PRODUCTION OF AMMONIUM SALTS OF AROMATIC CARBOXYLIC ACIDS.

    公开(公告)号:MX243722B

    公开(公告)日:2007-02-12

    申请号:MXPA04004852

    申请日:2002-12-03

    Applicant: BASF AG

    Abstract: A process is described for preparing ammonium salts of aromatic carboxylic acids by reacting an aromatic carboxylic acid with ammonia in an aprotic solvent, which comprises carrying out the reaction in a closed vessel by continuously introducing a solution of the aromatic carboxylic acid in the aprotic solvent and passing in gaseous ammonia so that an ammonia partial pressure in the range from 0.1 to 3 bar is maintained in the gas space of the vessel, and discharging a suspension of the ammonium salt in the aprotic solvent. The process allows the preparation of ammonium salts of defined crystal size having a narrow size distribution.

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