Promoted oxidation of aqueous ferrous chloride solution

Details Promoted oxidation of aqueous ferrous chloride solution Promoted oxidation of aqueous ferrous chloride solution

1978-12-11

1981-02-03

Hearn, Brian E.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

C01G 4910

Patent

active

042488516

ABSTRACT:
This invention is directed to the oxidation of ferrous chloride in liquid aqueous solution, such as, waste HCl pickle liquor, to a solution containing ferric chloride, by intimately intermingling said ferrous chloride solution with free oxgyen in the presence of a dissolved promoter cation selected from the class consisting of ammonium, chromium, cobalt, copper, manganese, nickel, zinc and mixtures thereof at an elevated temperature between about 120.degree.-500.degree. F. for a time sufficient to obtain a ferric chloride containing solution.
The invention is also directed to producing hydrochloric acid from ferric chloride solution in water by heating the liquid solution at a temperature of about 250.degree. -400.degree. F. at subatmospheric pressure, preferably, by means of hot submerged combustion gases, to obtain a hydrogen chloride gas-water vapor mixture and a bottoms aqueous slurry of iron oxide.

REFERENCES:
patent: 1047826 (1912-12-01), McKechnie
patent: 1100675 (1914-06-01), Hackl
patent: 1421804 (1922-07-01), Mejdell
patent: 2428221 (1947-09-01), Hudson
patent: 2443765 (1948-06-01), Francis
patent: 2620261 (1952-12-01), Toxby
patent: 3252787 (1966-05-01), Shiah
patent: 3311447 (1967-03-01), Stuart
patent: 3542508 (1970-11-01), Sercombe
Lyulko, V., "Potentiometric Investigation of Ferrous Chloride Oxidation by Oxygen", in Chemical Abstracts, vol. 59, (1963), #1279a.
Pound, J., "The Oxidation of Solutions of Ferrous Salts", J. Phys. Chem., vol. 43, (1939), pp. 955-967.

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