Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1984-03-07
1987-06-23
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423240, C01B 1700
Patent
active
046751670
ABSTRACT:
In treating exhaust gases containing SO.sub.2, HCl and HF, there is disclosed a method of treating such exhaust gas which comprises detecting the amounts of HCl and HF in the exhaust gas and supplying an amount of a magnesium compound commensurate with a stoichiometric amount to become at least MgCl.sub.2 and MgF.sub.2 in an exhaust-gas treating tower and a calcium compound as a SO.sub.2 solvent into the exhaust-gas treating tower.
The aforesaid method of treating an exhaust gas comprises a method of causing Mn ion to coexist in an absorbing solution in contact with the exhaust gas.
REFERENCES:
patent: 2813000 (1957-11-01), Quittenton
patent: 3904742 (1975-09-01), Akimoto
patent: 4108959 (1978-08-01), Tatani et al.
Okino Susumu
Omoto Setsuo
Onizuka Masakazu
Shinoda Naoharu
Tatani Atsushi
Heller Gregory A.
Mitsubishi Jukogyo Kabushiki Kaisha
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