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

A process 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.
Authors:
 [1] ;  [1] ;  [2]
  1. (Oak Ridge, TN)
  2. (Concord, TN)
Publication Date:
OSTI Identifier:
870877
Report Number(s):
US 5613241
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
treatment; halogen-containing; waste; waste; materials; process; treating; halogen-containing; waste; material; process; provides; bath; molten; glass; containing; sacrificial; metal; oxide; capable; reacting; halogen; waste; material; sacrificial; metal; oxide; molten; glass; stoichiometric; amount; respect; halogen; waste; material; waste; material; introduced; bath; molten; glass; reaction; halogen; waste; material; sacrificial; metal; oxide; yield; metal; halide; metal; halide; gas; temperature; molten; glass; gaseous; metal; halide; separated; molten; glass; contacted; aqueous; scrubber; solution; alkali; metal; hydroxide; yield; metal; hydroxide; metal; oxide-containing; precipitate; soluble; alkali; metal; halide; precipitate; separated; aqueous; scrubber; solution; molten; glass; containing; treated; waste; material; removed; bath; waste; glass; process; treat; types; waste; material; including; radioactive; wastes; process; particularly; suited; separating; halogens; halogen-containing; wastes; sacrificial metal; sacrificial metal; sacrificial metal; scrubber solution; scrubber solution; process provides; particularly suited; waste material; waste material; waste material; waste material; waste material; waste material; waste material; waste material; alkali metal; alkali metal; metal oxide; metal oxide; metal oxide; metal oxide; metal halide; metal halide; metal halide; metal halide; waste materials; radioactive waste; molten glass; molten glass; molten glass; molten glass; molten glass; molten glass; material including; metal hydroxide; metal hydroxide; radioactive wastes; stoichiometric amount; waste glass; soluble alkali; containing wastes; including radioactive; glass containing; glass containing; containing waste; containing waste; containing waste; halogen-containing waste; halogen-containing waste; halogen-containing waste; gaseous metal; oxide cap /588/501/976/