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(11)

EP 2 178 635 A1

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(43) Date of publication: 28.04.2010 Bulletin 2010/17 (21) Application number: 08773855.5 (22) Date of filing: 03.07.2008

(51) International Patent Classification (IPC):  B01J 20/04(2006.01) C02F 1/28(2006.01) B01J 20/30(2006.01) (86) International application number: PCT/EP2008/005449 (87) International publication number: WO 2009/003709 (08.01.2009 Gazette 2009/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 04.07.2007 EP 07013095 (71) Applicant: Süd-Chemie AG 80333 München (DE)	(72) Inventors: ORTIZ NIEMBRO, Jose Antonio MX-72590 Puebla (MX) GONZALES LOZANO, Eduardo Puebla CP 72050 (MX) PACHECO GARCIA, Fidel Puebla 72840 (MX) ROSANO OERTEGA, Genoveva Puebla, 72060 (MX) MARTINEZ QUEVEDO, Veronica Morelos, 62584 (MX) (74) Representative: Rembold, Hansjörg  Stolmár Scheele & Partner Blumenstraße 17 80331 München 80331 München (DE)