Removal of metal comtaminants from catalysts using buffered oxalic acid

Patent · Tue Jun 11 00:00:00 EDT 1985

OSTI ID:6321869

McVicker, G B; Carter, J L; Murrell, L L; Ziemiak, J J

A process for removing metal contaminants from a hydroconversion catalyst, said catalyst containing at least one metal from Groups VIB, VIIB or VIII supported on a refractory inorganic oxide. The process comprises contacting the contaminated catalyst with a buffered oxalic acid solution wherein contaminant is removed without dissolving the support.

• Assignee: Exxon Research and Engineering Co.
• Patent Number(s): US 4522928
• OSTI ID: 6321869
• Resource Relation: Patent File Date: Filed date 14 May 1984; Other Information: PAT-APPL-610096
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CATALYSTS
DEMETALLIZATION
HYDROCRACKING
OXALIC ACID
BUFFERS
CATALYST SUPPORTS
CHEMICAL COMPOSITION
IMPURITIES
INORGANIC COMPOUNDS
OXIDES
REFRACTORY METALS
SOLUTIONS
SOLVENT PROPERTIES
ALLOYS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DICARBOXYLIC ACIDS
DISPERSIONS
ELEMENTS
METALS
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing