DEFOAMING AGENT AND/OR DEAERATOR FOR AQUEOUS MEDIA TENDING TO FOAM

    公开(公告)号:CA2493055C

    公开(公告)日:2010-04-13

    申请号:CA2493055

    申请日:2003-07-16

    Applicant: BASF AG

    Abstract: The invention relates to a defoaming agent and/or deaerator based on oil-in-water dispersions, the oil phase of which contains at least one compound from the group of alcohols comprising at least 12 C atoms, alkoxylated fat alcohols, monoglycerides, diglycerides, and triglycerides of fatty acids, fatty acid ester from carboxylic acids comprising at least 12 C atoms and monovalent to trivalent alcohols comprising 3 to 22 C atoms, hydrocarbons having a boiling point of more than 200 ~C, fatty acids comprising 12 to 22 C atoms, 3-thiaalkane-1-ole, 3-thiaoxide alkane-1-ole, 3-thiadioxide-alkane-ole, and ester of the thiaalkane compounds in combination with (i) at least one polyglycerine that is obtained by esterification of at least 20 percent of polyglycerine with a carboxylic acid comprising 12 to 36 C atoms, and (ii) at least one bisamide consisting of ethylene diamine and carboxylic acids comprising 10 to 36 C atoms while the aqueous phase thereof contains at least one stabilizer, water, and an optional thickener, for aqueous media that tend to foam. Also disclosed is the use of said defoaming agent and/or deaerator for controlling foam in media tending to foam, particularly for controlling foam during cellulose boiling, cellulose washing, grinding of paper pulp, paper production, and dispersion of pigments used for paper production.

    DESESPUMANTE Y/O DESAIREADOR A BASE DE DISPERSIONES DE ACEITE-EN-AGUA.

    公开(公告)号:ES2250716T3

    公开(公告)日:2006-04-16

    申请号:ES02776518

    申请日:2002-06-04

    Applicant: BASF AG

    Abstract: Dispersiones de aceite-en-agua, cuya fase oleaginosa contiene al menos una substancia inorgánica, que contenga oxígeno, sólida a temperatura ambiente, insoluble en agua, elegida entre los alcoholes de cadena larga con un resto hidrocarbonado alifático, que presenta al menos 12 átomos de carbono, que puede estar interrumpido, en caso dado, por S, SO o SO2, residuos de destilación, que se obtienen en la obtención de alcoholes alifáticos con al menos 14 átomos de carbono, monoglicéridos, diglicéridos y triglicéridos de ácidos grasos, ésteres de ácidos grasos de alcoholes alifáticos con al menos 12 átomos de carbono, ésteres de ácidos grasos de alcanoles con 1 a 11 átomos de carbono y sus mezclas.

    19.
    发明专利
    未知

    公开(公告)号:BR0312832A

    公开(公告)日:2005-04-26

    申请号:BR0312832

    申请日:2003-07-16

    Applicant: BASF AG

    Abstract: A defoaming agent and/or deaerator for aqueous foamable media based on oil-in-water dispersions. The oil phase contains at least one compound from fatty alcohols, fatty acid monoglycerides, diglycerides, and triglycerides, fatty acid ester of fatty acids and monovalent to trivalent alcohols, 3-thiaalkane-1-ole, 3-thiaoxide alkane-1-ole, 3-thiadioxide-alkane-ole, and thiaalkane esters in combination with (i) at least one polyglycerine that is obtained by esterification of at least 20 percent of polyglycerine with 12 to 36 C carboxylic acid, and (ii) at least one bisamide consisting of ethylene diamine and 10 to 36 C atom carboxylic acids, while the aqueous phase thereof contains at least one stabilizer, water, and an optional thickener, for aqueous media that tend to foam. Also disclosed are methods of controlling foam by adding the dispersions to a process, particularly during cellulose boiling, cellulose washing, grinding of paper pulp, paper production, and dispersion of pigments used for paper production.

    DEFOAMING AGENT AND/OR DEAERATOR FOR AQUEOUS MEDIA TENDING TO FOAM

    公开(公告)号:CA2493055A1

    公开(公告)日:2004-02-12

    申请号:CA2493055

    申请日:2003-07-16

    Applicant: BASF AG

    Abstract: The invention relates to a defoaming agent and/or deaerator based on oil-in- water dispersions, the oil phase of which contains at least one compound fro m the group of alcohols comprising at least 12 C atoms, alkoxylated fat alcohols, monoglycerides, diglycerides, and triglycerides of fatty acids, fatty acid ester from carboxylic acids comprising at least 12 C atoms and monovalent to trivalent alcohols comprising 3 to 22 C atoms, hydrocarbons having a boiling point of more than 200 ~C, fatty acids comprising 12 to 22 C atoms, 3-thiaalkane-1-ole, 3-thiaoxide alkane-1-ole, 3-thiadioxide-alkane-ol e, and ester of the thiaalkane compounds in combination with (i) at least one polyglycerine that is obtained by esterification of at least 20 percent of polyglycerine with a carboxylic acid comprising 12 to 36 C atoms, and (ii) a t least one bisamide consisting of ethylene diamine and carboxylic acids comprising 10 to 36 C atoms while the aqueous phase thereof contains at leas t one stabilizer, water, and an optional thickener, for aqueous media that ten d to foam. Also disclosed is the use of said defoaming agent and/or deaerator for controlling foam in media tending to foam, particularly for controlling foam during cellulose boiling, cellulose washing, grinding of paper pulp, paper production, and dispersion of pigments used for paper production.

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