The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1992
Filed:
Jan. 22, 1990
Ryuichiro Iwamoto, Sodegaura, JP;
Satoshi Nakai, Sodegaura, JP;
Research Association For Residual Oil Processing, Tokyo, JP;
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.