METHOD OF PURIFYING CATALYSTS
Abstract
It has been fuund that the presence of chlorine as an impurity adversely affects the performance of finely divided platinum catalysts such as are used in the isotopic exchange process for the production of beavy water. This chlorine impurity may be removed from these catalysts by treating the catalyst at an elevated temperature with dry hydrogen and then with wet hydrogen, having a hydrogen-water vapor volume of about 8: 1. This alternate treatment by dry hydrogen and wet hydrogen is continued until the chlorine is largely removed from the catalyst.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4302958
- Patent Number(s):
- 2851427
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- NSA Number:
- NSA-13-004336
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
- Subject:
- PATENTS; CATALYSIS; CHLORINE; HEAVY WATER; HIGH TEMPERATURE; HUMIDITY; HYDROGEN; IMPURITIES; ISOTOPE EFFECTS; ISOTOPIC EXCHANGE; PERFORMANCE; PLATINUM; PRODUCTION; REFINING; STEAM; TEMPERATURE; VAPORS; VOLUME; WATER
Citation Formats
Joris, G G. METHOD OF PURIFYING CATALYSTS. United States: N. p., 1958.
Web.
Joris, G G. METHOD OF PURIFYING CATALYSTS. United States.
Joris, G G. Mon .
"METHOD OF PURIFYING CATALYSTS". United States.
@article{osti_4302958,
title = {METHOD OF PURIFYING CATALYSTS},
author = {Joris, G G},
abstractNote = {It has been fuund that the presence of chlorine as an impurity adversely affects the performance of finely divided platinum catalysts such as are used in the isotopic exchange process for the production of beavy water. This chlorine impurity may be removed from these catalysts by treating the catalyst at an elevated temperature with dry hydrogen and then with wet hydrogen, having a hydrogen-water vapor volume of about 8: 1. This alternate treatment by dry hydrogen and wet hydrogen is continued until the chlorine is largely removed from the catalyst.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {9}
}
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