Production of organic vanadates
AssigneeEthyl Corporation
InventorRobert N. DePriest
Life of this patent
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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.
Claims20
A process for the production of organic vanadates which comprises (i) reacting vanadium oxytrihalide with alkali metal alkoxide in the presence of a diluent that boils below the boiling point of the organic vanadate being produced, (ii) distilling the diluent from the reaction mixture and (iii) distilling the organic vanadate from a suspension of the reaction products in an inert liquid hydrocarbon that boils above the boiling point of the organic vanadate present therein.
A process for the production of organic vanadates which comprises (i) reacting vanadium oxytrihalide with a mixture of alkali metal alkoxide and alkanol, (ii) distilling excess alkanol from the reaction mixture, and (iii) distilling the organic vanadate from a suspension of the reaction products in an inert liquid hydrocarbon that boils above the boiling point of the organic vanadate.
A process for the production of triethylvanadate which comprises (i) reacting vanadium oxytrichloride with a mixture of sodium ethoxide and ethanol, (ii) separating excess ethanol from the reaction mixture by distillation, and (iii) distilling triethyl vanadate from a suspension of the reaction products in an inert hydrocarbon that boils above the boiling point of triethylvanadate.
Dependencies are inferred from the claim text.