Method of producing an ore pellet

Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes

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75 05R, 264 63, C22B 108

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active

045170142

ABSTRACT:
A method of producing a taconite pellet including reducing the water content of naturally found Gyttja to a maximum of 50%, mixing the Gyttja with finely ground taconite ore, and pelletizing the finely ground taconite and Gyttja mixture to form a green pellet. The pellet is then processed to burn off the organic portion of the Gyttja and to harden the pellet.

REFERENCES:
patent: 2417493 (1947-03-01), Holz
patent: 3212877 (1965-10-01), Rueckl
patent: 3326668 (1967-06-01), Anthes
patent: 3525784 (1970-08-01), Endell
patent: 3765869 (1973-10-01), Schierloh
patent: 3811865 (1974-05-01), Ladell
patent: 3819360 (1974-06-01), Adams
patent: 3886244 (1975-05-01), Bayer
Auer, D. L. & R. L. Thayer, "Bentonite Update; Production, Reserves, Quality Control, & Testing", Society of Mining Engineering, pp. 1467-1473, (Oct. 1979).
Scheel, J. H. & R. G. Lyons, "Direction of Pelletizing in the 80's", paper submitted at the 111th Annual Meeting of the SME-AIME at Dallas, Texas, (Feb. 16, 1982).

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