Process of drying sulfide ores in direct contact with hot drying

Details Process of drying sulfide ores in direct contact with hot drying Process of drying sulfide ores in direct contact with hot drying

1984-12-21

1986-04-15

Camby, John J.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

34 86, 422168, 422183, 432105, F27B 1500, F26B 1900, B01D 5000, F01N 312

Patent

active

045824819

ABSTRACT:
The moist ores are dried in direct contact with hot dry tail gas from a contact process plant for producing sulfuric acid. The dried ores are roasted, the SO.sub.2 -containing gases produced by the roasting are processed in the contact process plant to produce sulfuric acid, and the tail gases from the contact process plant are heated up with surplus heat from the contact process plant. These heated tail gases are used to dry the moist ores.

REFERENCES:
patent: 2242763 (1941-05-01), Smith
patent: 3169853 (1965-02-01), Van Es
patent: 4077841 (1978-03-01), Suprunov et al.
patent: 4331630 (1982-05-01), Van Pool
patent: 4462977 (1984-07-01), Reed
Metall, Band 37, No. 4, Apr. 1983, Seite 299, Berlin, DE; "We've Re-Defined Copper Smelting with Our New CONTOP Process".

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