Minimizing emission of hexavalent chromium from combustion sourc

Details Minimizing emission of hexavalent chromium from combustion sourc Minimizing emission of hexavalent chromium from combustion sourc

1997-06-03

1999-10-26

Straub, Gary P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 59, 423 60, 423607, 588236, 110344, 431 2, 431 4, C01G 3700, C01G 3702, A62D 300, F23J 300

Patent

active

059723017

ABSTRACT:
Formation of hexavalent chromium is reduced during incineration/combustion of materials containing hexavalent chromium by adding to the waste prior to or during combustion a small amount of sulfur. The sulfur can be added as elemental sulfur, as sulfur dioxide, or as high sulfur fuels or high sulfur waste.

REFERENCES:
patent: 3968756 (1976-07-01), Yamada
patent: 5245120 (1993-09-01), Srinivasachar et al.
Linak, William P. et al., Formation and destruction of hexavalent chromium in a laboratory swirl flame incinerator, Journal of Combstion Science and Technology, p. 116-117, Jun. 1995.
Linak et al., Toxic Metal Emissions from Incineration: Mechanism and Control, Prog. Energy Combust. Science, p 145-185, Apr. 1993.

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