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. 09, 1988
Filed:
May. 07, 1987
Applicant:
Inventor:
Hiroshi Ishizuka, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 77 ; 423 73 ; 423492 ; 423612 ;
Abstract
A method of purificating titanium tetrachloride, comprising: heating a loose mass of catalytic metal to a temperature over 300.degree. C. approximately, introducing vapor of a crude titanium tetrachloride to contact with said metal, said chloride comprising a minor amount of metal oxychloride, causing a reaction to convert a substantial part of the oxychloride to substances which are less volatile than titanium tetrachloride, removing such substances in condensed state from the titanium tetrachloride in fluid state, and recovering thus purified titanium tetrachloride.