Processes of continuously making hard composites of coke and car

Details Processes of continuously making hard composites of coke and car Processes of continuously making hard composites of coke and car

1994-05-02

1995-06-06

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Consolidating metalliferous material by agglomerating,...

75746, 75755, 75772, C21B 500

Patent

active

054218594

ABSTRACT:
Composite pieces of high density and strength are made continuously from mixtures of fine particles of bituminous or subbituminous or lignite coals and particles of carbon reducible oxides. The particles are mixed with water, compressed to squeeze out some of the water to obtain single bodies which are heat processed lying on a traveling grate on which the composites undergo drying, pyrolyzing, carbonizing and cooling.
A modification includes mixing in with the coal material(s) listed above, coke fines or char or anthracite coal. The carbon reducible oxides utilized are such as the oxidic ores of Fe, Mn, Cr and quartzite in recited important proportions that make the formed composite bodies usable in a submerged arc furnace or in a low shaft blast furnace or in an open hearth to produce desired intermediate or end metallic products such as ferromanganese, Fe-Cr base metal for stainless steel, iron, ferro-alloys or silicon.
Another modification includes the incorporation of fine particles of limestone in the above composite pieces so that such pieces burn without developing SO.sub.2. The incorporation is carried out by mixing the fine particles of limestone with the fine coal particles before they enter the above procedure.

REFERENCES:
patent: 2711951 (1955-06-01), West
patent: 2711952 (1955-06-01), West
patent: 2842434 (1958-02-01), Kippe
patent: 2861881 (1958-11-01), Phelps
patent: 3308219 (1967-03-01), Schmalfeld
patent: 4039319 (1977-08-01), Schapiro
patent: 4728358 (1988-03-01), Hoffman

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