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:
Nov. 07, 2000
Filed:
Nov. 16, 1998
Applicant:
Inventor:
Zongchao Zhang, Norwood, NJ (US);
Assignee:
Akzo Nobel NV, Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423305 ; 423308 ; 423311 ; 502208 ; 502210 ; 502211 ; 502213 ;
Abstract
A metal oxide is treated with an organophosphate, such as a trialkyl phosphate, to convert the oxide to the corresponding phosphate. The metal in the oxide can be a transition metal, such as iron, and the trialkyl phosphate preferably contains from one to about four carbon atoms in each alkyl group. The treatment can be conducted at an elevated temperature of about 250.degree. C. or greater.