Purified solution containing iron and manganese, and method prod

Details Purified solution containing iron and manganese, and method prod Purified solution containing iron and manganese, and method prod

1989-10-17

1993-04-06

Rosenberg, Peter D.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

C01G 304

Patent

active

052001598

ABSTRACT:
A purified solution containing iron chloride and manganese chloride, having a phosphorus content not higher than about 0.007 wt. % with respect to the total content of iron and manganese. The method for producing the purified solution comprises the steps of dissolving manganese containing raw material in hydrochloric solution; oxidizing the solution; adjusting the pH of the solution to 2.5.about.4.5 to form insolubles; and separating the insolubles from the solution. This solution can be utilized to produce a mixed powder of an iron oxide and a manganese oxide. The mixed powder is useful for producing a high-quality soft ferrite.

REFERENCES:
patent: 1773235 (1930-08-01), Mitchell
patent: 2423385 (1947-07-01), Hixson
patent: 3781405 (1973-12-01), Allan
patent: 3903236 (1975-09-01), McCutcheon
patent: 4026773 (1977-05-01), Van Peteghem

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