Energy conserving process for purifying iron oxide

Details Energy conserving process for purifying iron oxide Energy conserving process for purifying iron oxide

1976-10-19

1977-12-27

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1R, 75 5, 428 39, 428 97, 428107, C22B 108

Patent

active

040652947

ABSTRACT:
Chemical waste by products are used in place of conventional heating fuels both for induration and chloridization of impure iron oxide. Pelletized iron oxide is hardened and purified simultaneously by exposure to the heat and combustion products generated from burning chlorinated organic by-products. Hydrogen chloride produced during this combustion reacts with trace metal impurities in the iron oxide to effectively remove substantially all such impurities as volatile metal chlorides. Conventional fuel and binder requirements are substantially reduced or completely eliminated through use of such by-products, while remedying the problem of their disposal.

REFERENCES:
patent: 933270 (1909-09-01), Schumacher
patent: 958700 (1910-05-01), Glass
patent: 2245076 (1941-06-01), Muskatt
patent: 3482964 (1969-12-01), Ishimitsu
patent: 3988417 (1976-10-01), Polinsky

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