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Treatment of halogen-containing waste and other waste materials

Patent ·
OSTI ID:870877
 [1];  [1];  [2]
  1. Oak Ridge, TN
  2. Concord, TN
+ Show Author Affiliations

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.

Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5613241
OSTI ID:
870877
Country of Publication:
United States
Language:
English

References (1)

Regioselective generation and trapping of mono- and dianions of 3-arylsulfonyl furans. Bidentate carbanion stabilization via sulfones journal January 1987

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Related Subjects

/588/501/976/
alkali
alkali metal
amount
aqueous
bath
capable
contacted
containing
containing waste
containing wastes
gas
gaseous
gaseous metal
glass
glass containing
halide
halogen
halogen-containing
halogen-containing waste
halogens
hydroxide
including
including radioactive
introduced
material
material including
materials
metal
metal halide
metal hydroxide
metal oxide
molten
molten glass
oxide
oxide cap
oxide-containing
particularly
particularly suited
precipitate
process
process provides
provides
radioactive
radioactive waste
radioactive wastes
reacting
reaction
removed
respect
sacrificial
sacrificial metal
scrubber
scrubber solution
separated
separating
soluble
soluble alkali
solution
stoichiometric
stoichiometric amount
suited
temperature
treat
treated
treating
treatment
types
waste
waste glass
waste material
waste materials
wastes
yield