NON-DESTRUCTIVE PROCESS FOR REMOVING METALS, METAL IONS AND METAL OXIDES FROM ALUMINA-BASED MATERIALS

NON-DESTRUCTIVE PROCESS FOR REMOVING METALS, METAL IONS AND METAL OXIDES FROM ALUMINA-BASED MATERIALS

The present disclosure describes a non-destructive process for removing metals, metal ions and metal oxides present in alumina-based materials without destroying alumina, allowing the regeneration of alumina-based catalysts. Known conventional procedures and/or methods for removing metals, metal ion...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAVARRETE BOLANOS, Juan, AGUILAR BARRERA, Candido, PEREZ ROMO, Patricia, REYES ROBLES, Santos Glorindo
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The present disclosure describes a non-destructive process for removing metals, metal ions and metal oxides present in alumina-based materials without destroying alumina, allowing the regeneration of alumina-based catalysts. Known conventional procedures and/or methods for removing metals, metal ions and metal oxides present in alumina-based materials use some inorganic acid or its mixtures to carry out digestion, which modifies the properties of alumina and those of any other element contained in the material, destroying alumina and preventing its reuse. The present disclosure is characterized by using an extracting agent that sequesters metals, metal ions and/or metal oxides present in alumina-based materials without modifying their properties. The employed extracting agent is an alcohol. The non-destructive process introduced in the present invention reaches metal (M) removal rates of at least 42% when using a continuous flow reactor and of at least 27% when a batch reactor is employed.