Iron-containing aluminosilicate

Details Iron-containing aluminosilicate Iron-containing aluminosilicate

1990-01-22

1992-08-25

Breneman, R. Bruce

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

502 66, 502 79, 502 74, 208111, C01B 3334

Patent

active

051417375

ABSTRACT:
An iron-containing aluminosilicate and a process for producing the iron-containing aluminosilicate. The iron-containing aluminosilicate has a composition of the formula expressed as oxides: aFe.sub.2 O.sub.3.Al.sub.2 O.sub.3.bSiO.sub.2.nH.sub.2 O wherein n is 0 to 30, and a and b are numbers satisfying the following relationships: 15<b<100 and 0.005<a/b<0.15. The iron-containing aluminosilicate has an inert iron compound content (Fe).sub.dep as calculated by a temperature-programmed reduction, of not more than 35%, and at least one high-temperature reduction peak, Th (.degree. C.), within the following equation: 700.degree.C..ltoreq.Th.ltoreq.(-300.times.UD+8,320).degree. C. wherein UD is a lattice constant (.ANG.) of the iron-containing aluminosilicate.

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