Process for producing porous spinel materials

Details Process for producing porous spinel materials Process for producing porous spinel materials

1979-11-15

1981-03-17

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423595, 423596, 423600, 423593, 423599, C01G 4900, C01G 3714, C01F 704

Patent

active

042567220

ABSTRACT:
The instant invention is related to the production of porous spinel materials which exhibit exceptional durability in both acid and basic solutions, and possess high porosity with high surface area and narrow range of pore size. More specifically, the present invention is directed to the production of porous spinel materials involving the impregnation of finely-divided trivalent metal oxides, usually Al.sub.2 O.sub.3, Fe.sub.2 O.sub.3, or Cr.sub.2 O.sub.3, with a solution of a divalent metal ion-containing compound, commonly selected from the group of Mg.sup.+2, Fe.sup.+2, Mn.sup.+2, and Zn.sup.+2, and thereafter firing the mixture to effect reaction, resulting in the conversion of the trivalent metal oxide to a spinel.

REFERENCES:
patent: 2703789 (1955-03-01), McKinley et al.
patent: 3423194 (1969-01-01), Kearby
patent: 3909455 (1975-09-01), Rainer et al.
patent: 3948808 (1976-04-01), Box et al.
patent: 3998939 (1976-12-01), Mason et al.
patent: 4097300 (1978-06-01), Balducci et al.

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