Quaternary polyamines as sulfite oxidation inhibitors

Details Quaternary polyamines as sulfite oxidation inhibitors Quaternary polyamines as sulfite oxidation inhibitors

1990-06-29

1991-05-28

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423242, 423512A, 252401, 252403, C01B 1700, C01B 1745, C09K 1516, C09K 1522

Patent

active

050193651

ABSTRACT:
Inhibitors of oxidation of sulfites to sulfates in sulfur dioxide scrubbing solutions are disclosed. The inhibitors are cationic polyelectrolytes which are water soluble, have a molecular weight of at least 10,000 daltons and contain quaternary amine groups. The polyelectrolytes are preferably present at 1-3000 ppm in alkali solutions with which a sulfur dioxide containing gas stream is contacted.

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