Process for sintering lead concentrates

Details Process for sintering lead concentrates Process for sintering lead concentrates

1980-09-02

1982-07-13

Lewis, Michael L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 8, 423 89, C22B 120

Patent

active

043392695

ABSTRACT:
An improved process for increasing (1) the removal of sulfur from lead concentrates and (2) the ratio of fresh, lead concentrate in the feed to a conventional lead concentrate sintering machine. Oxygen is added to the air of the updraft ignition section in predetermined amounts coupled with predetermined reductions and finally, termination of oxygen enrichment at a predetermined distance from the point of downdraft ignition. Additional cooling is supplied by use of finely dispersed, liquid water introduced into preselected wind boxes at predetermined positions downstream of the termination of oxygen enrichment.

REFERENCES:
patent: 2498766 (1950-02-01), Pettigrew
patent: 2789034 (1957-04-01), Swaine et al.
patent: 2850371 (1958-09-01), Brooks et al.
patent: 4144051 (1979-03-01), Rahn et al.
patent: 4266967 (1981-05-01), Yamada et al.

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