Process for regenerating and stabilizing phosphorus-vanadium-oxygen complex catalysts

Patent · Tue Aug 29 04:00:00 EDT 1989

OSTI ID:5335836

Edwards, R C

This patent describes a process for regenerating and for stabilizing a phosphorus-vanadium-oxide catalyst having an atomic ratio of phosphorus to vanadium in the range of about 0.5 to about 5. The process comprises: contacting the catalyst at a temperature in the range of from about 300{sup 0}C. to about 550{sup 0}C. with an effective about of a halogen-containing material selected from the group consisting of: molecular chlorine or flourine or mixtures thereof; carbon halides of fluorine, chlorine, bromine or iodine being in the vapor state above about 250{sup 0}C.; organic halides of fluorine, chlorine, bromine or iodine being in the vapor state above about 250{sup 0}F.; hydrogen halides singularly or mixtures thereof at regeneration conditions including a temperature in the range of from about 300{sup 0}C. to about 550{sup 0}C.; and contacting the catalyst with an effective amount of an alkyl ester of orthophosphoric acid and water. The amount of the halogen-containing material and the amount of the alkyl ester of orthophosphoric acid effective to regenerate the catalyst.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): US 4861738
• Application Number: PPN: US 7-450223A
• OSTI ID: 5335836
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
PYROLYSIS
REGENERATION
STABILIZATION
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES