Use of concentrated chelated iron reagent for reducing pollutant

Details Use of concentrated chelated iron reagent for reducing pollutant Use of concentrated chelated iron reagent for reducing pollutant

1974-06-28

1976-01-20

Thomas, Earl C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423226, 423243, C01B 1704, B01D 5334

Patent

active

039339939

ABSTRACT:
A chelated iron solution of high concentration that is stable at a pH greater than 7 to at least pH 10 is disclosed. Also a process is disclosed in which this formulation is used to remove H.sub.2 S and/or mercaptans as pollutants in a gas stream. In the case of H.sub.2 S this chelate acts by producing sulfur therefrom in the absence of oxygen.

REFERENCES:
patent: 3097925 (1963-07-01), Pitts, Jr. et al.
patent: 3226320 (1965-12-01), Meuley et al.

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