Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent
1979-05-07
1981-05-12
Carter, Herbert T.
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
423543, 423221, 55 29, 55 32, B01D 1900, C01B 1752, C01B 1754
Patent
active
042671620
ABSTRACT:
Sulfur compounds contained in gases containing oxygen and a high content of water vapor are exploited by removing the water vapor content by treating the gases with a glycol and then using the dried gas still containing sulfur compounds, as an oxidation gas for the burning of sulfur or for the roasting of sulfidic ores in the production of highly concentrated sulfuric acid. Apparatus for carrying out the process includes an absorber for absorption by the glycol of the water vapor contained in the gas. The absorber has an exhaust gas conduit connected to a combustion furnace or roasting furnace for the production of sulfur dioxide. A desorber is provided for distilling the water vapor from the glycol and is connected to the absorber by a ring conduit for the glycol enriched with water and for the dewatered glycol. Lastly, apparatus is provided for the heating of the glycol and the desorber.
REFERENCES:
patent: 341316 (1886-05-01), Cochrane
patent: 2114787 (1938-04-01), Smith
patent: 2139375 (1938-12-01), Millar et al.
patent: 2192126 (1940-02-01), Downs
patent: 3119663 (1964-01-01), Furkert
patent: 3450603 (1969-06-01), Meyers et al.
Carter Herbert T.
Straub Gary P.
Sud-Chemie Aktiengesellschaft
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