Method for removal of mercury in sulfur dioxide-containing gas

Details Method for removal of mercury in sulfur dioxide-containing gas Method for removal of mercury in sulfur dioxide-containing gas

1974-11-11

1976-06-01

Carter, Herbert T.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

55 72, 423561, B01D 5334

Patent

active

039610314

ABSTRACT:
A method for the removal of mercury contained in a sulfur dioxide-containing gas which comprises contacting the sulfur dioxide-containing gas with an aqueous thiourea solution which optionally contains an acid at an acid concentration higher than one normal to selectively absorb mercury in a vapor state.

REFERENCES:
patent: 3725530 (1973-04-01), Kawase et al.
patent: 3786619 (1974-01-01), Melkersson et al.
patent: 3817713 (1974-06-01), Ionescu
patent: 3838190 (1974-09-01), Beike et al.
patent: 3849537 (1974-11-01), Allgulin
patent: 3855387 (1974-12-01), Brockmiller et al.

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