Compositions – Oxidative bleachant – oxidant containing – or generative – Free halogen or oxy-halogen acid type
Patent
1976-02-10
1977-07-19
Vertiz, O. R.
Compositions
Oxidative bleachant, oxidant containing, or generative
Free halogen or oxy-halogen acid type
423241, 423463, 423481, 423488, 260664, 423493, C01B 902
Patent
active
040367762
ABSTRACT:
A molten mixture containing the higher and lower valent forms of a multivalent metal chloride; in particular, cuprous and cupric chloride, is contacted with oxygen, and aqueous hydrogen chloride recycle, to recover the chlorine values by generation of the higher valent metal chloride and also effect oxidation of the melt by production of the oxychloride. The gas withdrawn from the oxidation contains hydrogen chloride, chlorine and water vapor, with the hydrogen chloride being separate from the gas as aqueous hydrogen chloride and recycle to the oxidation. The chlorine and water vapor in the gas are contacted with activated carbon to produce hydrogen chloride, which is separated as aqueous hydrogen chloride and recycled to the oxidation.
REFERENCES:
patent: 1921388 (1933-08-01), Heath et al.
patent: 2426914 (1947-09-01), Allen
patent: 3233978 (1966-02-01), Alkemade
patent: 3968050 (1976-06-01), Riegel
patent: 3968200 (1976-06-01), Tsao
Gibbs "The Production of Hydrochloric Acid from Chlorine and Water", Industrial and Engineering Chemistry, vol. 12, No. 6 (AZO) pp. 538-541.
Riegel Herbert D.
Schindler Harvey D.
Strangio Vincent A.
Hearn Brian E.
The Lummus Company
Vertiz O. R.
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