Dry cold process for making foundry dusts into briquettes

Details Dry cold process for making foundry dusts into briquettes Dry cold process for making foundry dusts into briquettes

C - Chemistry, Metallurgy

22

B

C22B 7/02 (2006.01) C22B 1/24 (2006.01) C22B 1/243 (2006.01)

Patent

CA 2065314

ABSTRACT: A process is described for the briquetting of metallurgical dusts, in particular converter steel dust, at high pressure and using a basic additive,. according to which process the dust, together with lime, dolomite, magnesite, dunite, olivine or bauxite, in each case in burnt or unburnt form and either alone or in mixtures thereof, is formed into transportable briquettes which do not give off dust, at pressures in excess of 10.000 bar at standard temperature (20°C). The resultant transportable briquettes can be returned, in an environmentally acceptable form, to the steel-making process, and permit an environmentally non-prejudicial disposal of the dust.

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