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Title: Removal of metal comtaminants from catalysts using buffered oxalic acid

Abstract

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.

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

Citation Formats

McVicker, G B, Carter, J L, Murrell, L L, and Ziemiak, J J. Removal of metal comtaminants from catalysts using buffered oxalic acid. United States: N. p., 1985. Web.
McVicker, G B, Carter, J L, Murrell, L L, & Ziemiak, J J. Removal of metal comtaminants from catalysts using buffered oxalic acid. United States.
McVicker, G B, Carter, J L, Murrell, L L, and Ziemiak, J J. 1985. "Removal of metal comtaminants from catalysts using buffered oxalic acid". United States.
@article{osti_6321869,
title = {Removal of metal comtaminants from catalysts using buffered oxalic acid},
author = {McVicker, G B and Carter, J L and Murrell, L L and Ziemiak, J J},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/6321869}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 11 00:00:00 EDT 1985},
month = {Tue Jun 11 00:00:00 EDT 1985}
}