Process for preparing a fluorination catalyst and the catalyst prepared by the process
This patent describes a process for preparing a fluorination catalyst. The process comprising: codepositing from an aqueous solution hexavalent chromium oxide and a compound of a transition metal the transition metal selected from the group consisting of titanium, zirconium, vanadium, molybdenum and manganese at a chromium to transition metal atomic ratio of about 1:1 to about 10:1 on solid porous alumina particles having a surface area of at least about 50 m/sup 2//g prior to the codeposited to produce impregnated alumina particles of which the hexavalent chromium oxide and the transition metal together comprise from about 5 to about 30 weight percent; and contacting the product with hydrogen flouride gas from about 3 to about 20 hours at a temperature of about 300{sup 0}C. to about 500{sup 0}C.
- Assignee:
- LaRoche Chemicals, Inc., Baton Rouge, LA
- Patent Number(s):
- US 4861744
- Application Number:
- PPN: US 7-248841A
- OSTI ID:
- 5334947
- Resource Relation:
- Patent File Date: 26 Sep 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
SYNTHESIS
ALUMINIUM OXIDES
CHROMIUM OXIDES
FLUORINATION
HYDROFLUORIC ACID
MANGANESE COMPOUNDS
MOLYBDENUM COMPOUNDS
TITANIUM COMPOUNDS
VANADIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
HALOGENATION
HYDROGEN COMPOUNDS
INORGANIC ACIDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
020400* - Petroleum- Processing
400201 - Chemical & Physicochemical Properties