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:
May. 13, 1980
Filed:
May. 24, 1978
Applicant:
Inventors:
Henry H Feng, Ardsley, NY (US);
John P D'Acierno, Ossining, NY (US);
Adam E Skrzec, West Nyack, NY (US);
Assignee:
Stauffer Chemical Company, Westport, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423265 ; 423492 ;
Abstract
The stability of vanadium tetrachloride is improved by the addition of phosphorus trichloride such as phosphorus trichloride. Preferably, the vanadium tetrachloride is provided by the reductive chlorination of vanadium oxychloride in the presence of activated carbon having a sulfur content less than 1% by weight.