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1. MXMX/a/2010/000101 - PREPARATION OF NEW HYDROTALCITE-LIKE ADSORBENTS USEFUL FOR THE ADSORPTION OF ANIONIC MATERIALS

Office
Mexico
Application Number MX/a/2010/000101
Application Date 07.01.2010
Publication Number MX/a/2010/000101
Publication Date 07.09.2010
Publication Kind A
IPC
B01J 20/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02comprising inorganic material
04comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30Processes for preparing, regenerating or reactivating
C02F 1/28
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
Applicants SUD-CHEMIE AG
Inventors FIDEL PACHECO GARCIA
JOSE ANTONIO ORTIZ NIEMBRO
EDUARDO GONZALES LOZANO
GENOVEVA ROSANO ORTEGA
VERONICA MARTINEZ QUEVEDO
Agents GILBERTO PABLO DE HOYOS KOLOFFON
Priority Data 07013095 04.07.2007 EP
Title
(EN) PREPARATION OF NEW HYDROTALCITE-LIKE ADSORBENTS USEFUL FOR THE ADSORPTION OF ANIONIC MATERIALS
(ES) PREPARACIÓN DE NUEVOS ABSORBENTES SIMILARES A HIDROTALCITAÚTILES PARA LA ADSORCION DE MATERIALES ANIÓNICOS
Abstract
(EN)
The invention discloses a method for the synthesis of hydro-talcite-like adsorbent which is in particular suitable for the adsorption of sulfur-containing anions, e.g. in the purification of drinking water. The method comprises mixing an aqueous aluminium source and aqueous magnesium source with an alkaline and/or soda containing solution under high shear agitation. As the aluminium source is used an extract derived from the extraction of clays with strong mineral acids in the production of bleaching earth. The product can be easily separated and directly used as an adsorbent for different anions.

(ES)
La invención describe un método para la síntesis de un adsorbente parecido a hidrotalcita el cual es particularmente adecuado para la adsorción de aniones con contenido de sulfuro, por ejemplo en la purificación de agua potable. El método comprende mezclar una fuente de aluminio acuosa y una fuente de magnesio acuosa con una solución con contenido de un alcalino y/o soda bajo una agitación a alta velocidad. Como fuente de aluminio se usa un extracto derivado de la extracción de arcillas conácidos minerales fuertes en la producción de tierra de blanqueo. El producto puede ser fácilmente separado y directamente usado como un adsorbente por diferentes aniones.

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