skip to main content

Title: Treatment of halogen-containing waste and other waste materials

A process is described for treating a halogen-containing waste material. The process provides a bath of molten glass containing a sacrificial metal oxide capable of reacting with a halogen in the waste material. The sacrificial metal oxide is present in the molten glass in at least a stoichiometric amount with respect to the halogen in the waste material. The waste material is introduced into the bath of molten glass to cause a reaction between the halogen in the waste material and the sacrificial metal oxide to yield a metal halide. The metal halide is a gas at the temperature of the molten glass. The gaseous metal halide is separated from the molten glass and contacted with an aqueous scrubber solution of an alkali metal hydroxide to yield a metal hydroxide or metal oxide-containing precipitate and a soluble alkali metal halide. The precipitate is then separated from the aqueous scrubber solution. The molten glass containing the treated waste material is removed from the bath as a waste glass. The process of the invention can be used to treat all types of waste material including radioactive wastes. The process is particularly suited for separating halogens from halogen-containing wastes. 3 figs.
Authors:
; ;
Publication Date:
OSTI Identifier:
458576
Report Number(s):
US 5,613,241/A/
PAN: US patent application 8-443,624; TRN: 97:006789
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 18 Mar 1997
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; HALOGEN COMPOUNDS; WASTE PROCESSING; RADIOACTIVE WASTE PROCESSING; HALIDES; VAPORS; SCRUBBING; PRECIPITATION; GLASS