Producing pure iron oxides

Details Producing pure iron oxides Producing pure iron oxides

1976-06-21

1978-04-25

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

423592, 423633, 423488, 423DIG1, 134 3, 134 10, 23262, C01G 4902

Patent

active

040863212

ABSTRACT:
A method and apparatus for producing pre metallic oxides by dissolving the metal or oxide in heated dilute hydrochloric acid to form metallic chloride in a water solution (which solution may instead, be a waste product from a steel strip pickling line), reacting said solution in a reactor in the presence of heated oxygen to form metal oxide, part of which oxide being carried over in vapor form to a variable throat venturi where it is redissolved and reintroduced into the reactor to insure that only low chloride oxide will be discharged as a product. The system operates under negative pressure to prevent leakage tendency of HCl to the outside atmosphere.

REFERENCES:
patent: 2155119 (1939-04-01), Ebner
patent: 3351427 (1967-11-01), Wendell
patent: 3399964 (1968-09-01), Michels et al.
patent: 3578401 (1971-05-01), Uekerle
patent: 3634032 (1972-01-01), Segrove
patent: 3658483 (1972-04-01), Lienau
patent: 3745207 (1973-07-01), Hansen

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