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Title: Method for the recovery of silver from silver zeolite

Abstract

High purity silver is recovered from silver exchanged zeolite used to capture radioactive iodine from nuclear reactor and nuclear fuel reprocessing environments. The silver exchanged zeolite is heated with slag formers to melt and fluidize the zeolite and release the silver, the radioactivity removing with the slag. The silver containing metallic impurities is remelted and treated with oxygen and a flux to remove the metal impurities. About 98% of the silver in the silver exchanged zeolite having a purity of 99% or better is recoverable by the method.

Inventors:
 [1]
  1. Idaho Falls, ID
Issue Date:
Research Org.:
EG & G IDAHO INC
OSTI Identifier:
865736
Patent Number(s):
4564391
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; recovery; silver; zeolite; purity; recovered; exchanged; capture; radioactive; iodine; nuclear; reactor; fuel; reprocessing; environments; heated; slag; formers; melt; fluidize; release; radioactivity; removing; containing; metallic; impurities; remelted; treated; oxygen; flux; remove; metal; 98; 99; recoverable; metallic impurities; radioactive iodine; nuclear fuel; nuclear reactor; containing metal; fuel reprocessing; metal impurities; silver exchanged; silver zeolite; exchanged zeolite; /75/

Citation Formats

Reimann, George A. Method for the recovery of silver from silver zeolite. United States: N. p., 1986. Web.
Reimann, George A. Method for the recovery of silver from silver zeolite. United States.
Reimann, George A. Wed . "Method for the recovery of silver from silver zeolite". United States. https://www.osti.gov/servlets/purl/865736.
@article{osti_865736,
title = {Method for the recovery of silver from silver zeolite},
author = {Reimann, George A},
abstractNote = {High purity silver is recovered from silver exchanged zeolite used to capture radioactive iodine from nuclear reactor and nuclear fuel reprocessing environments. The silver exchanged zeolite is heated with slag formers to melt and fluidize the zeolite and release the silver, the radioactivity removing with the slag. The silver containing metallic impurities is remelted and treated with oxygen and a flux to remove the metal impurities. About 98% of the silver in the silver exchanged zeolite having a purity of 99% or better is recoverable by the method.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

Patent:

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