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:
Jul. 29, 1980
Filed:
Mar. 05, 1979
Applicant:
Inventor:
Hans H Glaeser, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
106300 ; 423265 ; 423613 ;
Abstract
A process for preparing rutile TiO.sub.2 by a process comprising oxidizing with oxygen or an oxygen containing gas, a mixture TiCl.sub.4 and AlCl.sub.3 and after at least 80% of the TiCl.sub.4 has been converted to TiO.sub.2 adding sufficient PCl.sub.3 to form from 0.1-0.5% P.sub.2 O.sub.5 in the TiO.sub.2, the amount of AlCl.sub.3 being sufficient to form 0.1-1.5% Al.sub.2 O.sub.3 in the TiO.sub.2.