Analysis of chromium volatility in the DWTF incinerator and in the molten salt processor

Technical Report · Thu Apr 02 04:00:00 EST 1992

OSTI ID:10140705

Ebbinghaus, B B

Thermodynamic methods have been applied to calculate the volatility of chromium both in atmospheres and in milligrams per cubic meter (stp) of offgas for the decontamination and waste treatment facility (DWTF) incinerator and the Rockwell molten salt processor. The known chromium species which have relatively high stabilities under oxidizing conditions and which contain elements found in either the DWTF incinerator or the molten salt processor are CrO{sub 2}(OH){sub 2}(g), CrO{sub 2}OH(g), CrO{sub 3}(g), CrO{sub 2}Cl{sub 2}(g), and CrOF(g) and CrO{sub 2}F{sub 2}(g). This study demonstrates that these species as well as others such as CrO(OH){sub 2}(g), CrOOH(g), CrO(OH){sub 3}(g), CrO{sub 2}Cl(g), CrOC1{sub 2}(g), CrOCl(g), CrOC1{sub 3}(g), CrOC1{sub 4}(g), and CrO{sub 2}F(g) can all be important species which contribute to the overall volatility of chromium in waste oxidation processes.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10140705
• Report Number(s): UCRL-JC--108635; ON: DE93009251
• Country of Publication: United States
• Language: English

Related Subjects

052001
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540120
AIR POLLUTION CONTROL
ASHES
CHEMICAL REACTIONS
CHEMICALS MONITORING AND TRANSPORT
CHROMIUM
INCINERATORS
MOLTEN SALTS
OFF-GAS SYSTEMS
OXIDATION
THERMODYNAMICS
VOLATILITY
WASTE PROCESSING
WASTES