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:
Apr. 19, 1988
Filed:
Sep. 30, 1986
Robert N DePriest, Baton Rouge, LA (US);
Ethyl Corporation, Richmond, VA (US);
Abstract
Vanadium oxytrihalide (e.g., VOCl.sub.3) is reacted with alkali metal alkoxide (e.g., NaOEt) in the presence of a diluent (e.g., EtOH) that boils below the boiling point of the organic vanadate being produced. The diluent is then distilled from the reaction mixture and thereafter the organic vanadate is distilled from a suspension of the reaction products in an inert liquid hydrocarbon (e.g., mineral oil) that boils above the boiling point of the organic vanadate produced. This higher boiling hydrocarbon is preferably added to the reaction mixture after the diluent has been distilled off. The process avoids hydrogen halide evolution and consequent need for gaseous ammonia. Solvent extractions are not required, the process may be conducted in a single reactor, and the products are readily formed in high yields.