Method for the regeneration of washing solution utilized for sim

Details Method for the regeneration of washing solution utilized for sim Method for the regeneration of washing solution utilized for sim

1985-05-29

1987-03-03

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423242, 71 54, C01B 2100, C01B 1700, C05C 700

Patent

active

046474412

ABSTRACT:
In a method for the regeneration of washing solution, which is used for washing nitrous oxide and sulfur dioxide out from exhaust gases, a portion of the washing solution containing a complex-forming substance, which is Iron (II)-chelate complex of ethylenediaminotetraacetic acid (EDTA), is removed from the washing solution flowing in a closed circuit, and imidodisulfonate in this portion is separated from the washing solution and is further used as a commercial product.

REFERENCES:
patent: 4055623 (1977-10-01), Saitoh et al.
patent: 4255401 (1981-03-01), Nomoto et al.

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