Use of surfactants and sulfuric acid in the extraction of metal

    公开(公告)号:NZ555806A

    公开(公告)日:2009-11-27

    申请号:NZ55580605

    申请日:2005-12-23

    Applicant: BASF AG

    Abstract: Disclosed is an aqueous composition which comprises sulfuric acid and at least one surfactant, wherein the surfactant, in a concentration of from 0.1 to 0.3% by weight in a 2% strength aqueous H2SO4 solution, at 23 degrees C, leads to a reduction in the contact angle on glass after 1 second by at least 10 degrees, wherein the composition has a contact angle on glass of less than 40 degrees, and wherein the surfactant is selected from a list as described in the specification. Also disclosed is a process for extracting metal from metal-containing materials, comprising: (a) provision of an optionally milled metal-containing material, (b) provision of the above composition, (c) bringing of the metal-containing material into contact with the composition and obtaining a mother liquor enriched with metal.

    METODO PARA ACELERAR HUMECTACION EN PINTURAS.

    公开(公告)号:MX2007000065A

    公开(公告)日:2007-03-28

    申请号:MX2007000065

    申请日:2005-07-15

    Applicant: BASF AG

    Abstract: La aresente in7encion se relaciona con una formulacion de naserial da revestimiento oua comorende una mezcla que comprende cono conmonene al ciandc menos un acante tensioactivo y cono conoonente a2 cuando menos un cesnocorresnondiente a ls formula oenera en la que es fenilo opcior1alnente substituido, alquilo de es alquilo de C-C, R3 es hidrogeno, alquilo de C1C6, benzoilo, acetilo, acriloilo, metacriloilo, n tiene un valor promedio de O a 10, rs tiene un valor promedio de 1 a 10, en donde n+m ?? 10 y rs > o, y las unidades estructurales de oxido de aiquiieno, que son diferentes si es apropiado, se pueden distribuir aleatoriamente o disponerse en bloques, l%-95% en peso de aglutinantes de formacion de pelicula y resinas, O%-80% en peso de rellenos, 0%-40% en peso de pigmentos, O%-20% en peso de aditivos y O%-90% en peso de soivenres organicos y/o acua, la suma de los porcentales en neso siendo 100% en caso, m con el uso de la mezcla de la invencion car red cir la tension s srficial en un naceriai - ( - - ).

    AMPHIPHILIC POLYMER COMPOSITIONS AND THEIR USE

    公开(公告)号:CA2567660A1

    公开(公告)日:2005-12-22

    申请号:CA2567660

    申请日:2005-06-07

    Applicant: BASF AG

    Abstract: The present invention relates to amphiphilic polymer compositions, to a process for their preparation and to their use for preparing aqueous active compound compositions of water-insoluble active compounds, in particular active compounds for crop protection. The amphiphilic polymer compositions can be obtained by reacting a) at least one hydrophobic polymer P1 which carries functional groups R1 which are reactive toward isocyanate groups and which is constructed of ethylenically unsaturated monomers M1, comprising: a1) at least 10% by weight, based on the total amount of monomers M1, of monomers M1a of the formula I  in which X is oxygen or a group N—R4; R1, R2, R3 and R4 are as defined in the claims and the description; a2) up to 90% by weight, based on the total amount of monomers M1, of neutral monoethylenically unsaturated monomers M1b whose solubility in water at 25° C. is less than 50 g/l and which are different from the monomers M1a; and a3) up to 30% by weight, based on the total amount of monomers M1, of ethylenically unsaturated monomers M1c which are different from the monomers M1a and M1b, b) at least one hydrophilic polymer P2 which carries functional groups R2 which are reactive toward isocyanate groups, c) with at least one compound V which contains isocyanate groups and, with respect to the isocyanate groups, has a functionality of at least 1.5.

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