Method for roasting finely divided sulphide material consisting

Details Method for roasting finely divided sulphide material consisting Method for roasting finely divided sulphide material consisting

1974-07-22

1976-05-11

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 9, 75 21, 75 26, C22B 108, C22B 110

Patent

active

039559602

ABSTRACT:
A method for roasting finely divided iron sulphide material in a manner to obtain a coarse, substantially sulphur-free product, the sulphide material consisting of pyrrhotite or a finely divided materal derived from a pyritic material in which thermally splittable sulphur has been driven off by partial roasting for example. According to the method, the sulphide material is first agglomerated to a particle size distribution suitable for fluidizing purposes and then roasted and hardened in a fluidized bed, whereafter the material is removed from the bed in a hot state.

REFERENCES:
patent: 3094409 (1963-06-01), Renzoni
patent: 3649245 (1972-03-01), Colombo
patent: 3681046 (1972-08-01), Bryk
patent: 3856506 (1974-12-01), Fahlstrom

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