Chemistry of inorganic compounds – Halogen or compound thereof – Ternary compound
Patent
1997-01-10
2000-04-11
Nguyen, Ngoc-Yen
Chemistry of inorganic compounds
Halogen or compound thereof
Ternary compound
422259, C01B 1104
Patent
active
060485132
ABSTRACT:
This invention is a method for forming hypohalous acid in a mass transfer device. The method comprises: (1) feeding into the device a stream of caustic solution comprising at least one alkali or alkaline earth metal of a hydroxide, oxide, hypohalite, bicarbonate, or carbonate; (2) feeding a stream comprising halogen gas into the device; (3) reacting at least some of the halogen gas with the caustic solution to form a solution containing hypohalous acid; (4) desorbing the hypohalous acid from the solution and into the stream of halogen gas; and (5) removing the stream of halogen gas from the device. In this method, the mass transfer device comprises a porous rotor which is permeable to the streams, and is rotated about an axis such that the streams flow through the rotor and the stream of caustic solution flows radially outward from the axis.
REFERENCES:
patent: Re31348 (1983-08-01), Wojtowicz et al.
patent: 523263 (1894-07-01), Cannot
patent: 972954 (1910-10-01), Walker
patent: 1227049 (1917-05-01), Haworth et al.
patent: 1732230 (1929-10-01), Hershman et al.
patent: 2111194 (1938-03-01), Sanchez
patent: 2240344 (1941-04-01), Muskat et al.
patent: 2347151 (1944-04-01), Crawford et al.
patent: 2941872 (1960-06-01), Pilo et al.
patent: 3498924 (1970-03-01), Walsh et al.
patent: 3578393 (1971-05-01), Wojtowicz et al.
patent: 3578400 (1971-05-01), Wojtowicz et al.
patent: 3684437 (1972-08-01), Callerame
patent: 3718598 (1973-02-01), Wojtowicz et al.
patent: 3896213 (1975-07-01), Hirdler
patent: 4017592 (1977-04-01), Penard et al.
patent: 4146578 (1979-03-01), Brennan et al.
patent: 4190638 (1980-02-01), Hoekje et al.
patent: 4283255 (1981-08-01), Ramshaw et al.
patent: 4504456 (1985-03-01), Yant et al.
patent: 4744956 (1988-05-01), Yant et al.
patent: 5037627 (1991-08-01), Melton et al.
patent: 5116593 (1992-05-01), Melton et al.
patent: 5322677 (1994-06-01), Shaffer et al.
patent: 5532389 (1996-07-01), Trent et al.
patent: 5667760 (1997-09-01), Sweeney
Adam, et al., "Hypochlorous Acid Decomposition in the pH 5-8 Region", Inorganic Chemistry, vol. 31, pp. 3534-3541 (1992) No month.
Doraiswamy, et al., Heterogeneous Reactions: Analysis, Examples, and Reactor Design, vol. 2: Fluid-Fluid-Solid Reactions, John Wiley & Sons, New York, p. 323 (1984) No month.
Lahiri, et al., Absorption of Chlorine in Aqueous Solutions of Sodium Hydroxide: Desorption of Hypochlorous Acid Followed by Its Dissociation to Chlorine Monoxide, Chemical Engineering Science, vol. 38, No. 7, pp. 119-113 (1983) No month.
Munjal, et al., "Mass-Transfer in Rotating Packed Beds -II. Experimental Results and Comparison with Theory and Gravity Flow", Chemical Engineering Science, vol. 44, No. 10, pp. 2257-2268 (1989) No month.
Mehta Anil J.
Quarderer George J.
Stewart Erik J.
Tirtowidjojo Cheryl A.
Tirtowidjojo Danil
Nguyen Ngoc-Yen
The Dow Chemical Company
Treangen John B.
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