Plasma induced fuming

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United States of America Patent

PATENT NO 10006100
SERIAL NO

14429561

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Abstract

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A method for recovery of evaporable substances comprises melting (210) of a material comprising evaporable metals and/or evaporable metal compounds into a molten slag. The molten slag is agitated (212) by a submerged jet of hot gas. The hot gas is controlled (214) to have an enthalpy of at least 200 MJ/kmol, and preferably at least 300 MJ/kmol. At least a part of the evaporable metals and/or evaporable metal compounds are fumed off (216) from the molten slag. An arrangement for the method is based on a furnace with a plasma torch submerged into molten slag in the furnace.

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Patent Owner(s)

Patent OwnerAddress
SCANARC PLASMA TECHNOLOGIES ABBOX 41 HOFORS 813 21

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heegard, Bror Magnus St Germain en Laye, FR 1 4
Imris, Matej Gävle, SE 2 5
Santén, Sven Hofors, SE 2 5

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