Manufacture of aluminium-silicon alloys

Details Manufacture of aluminium-silicon alloys Manufacture of aluminium-silicon alloys

1983-08-25

1984-11-06

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 68A, 75130R, C22B 400

Patent

active

044810318

ABSTRACT:
In a method of manufacturing aluminium-silicon alloy from natural mineral containing alumina and silica and carbon powder, the natural mineral in powder form is injected together with a reducing agent in the form of a carbon carrier, with the aid of a carrier gas into a plasma gas produced in a plasma generator. The mineral thus heated is then introduced, together with the reducing agent and the energy-rich plasma gas, into a reaction chamber surrounded substantially on all sides by solid reducing agent in lump form. Examples of the natural mineral include andalusite, cyanite, silimite, nepheline, quartz, clay containing alumina, such as bauxite, and mixtures of two or more of these minerals.

REFERENCES:
patent: 3340020 (1967-09-01), Neuenschwander
patent: 4072504 (1978-02-01), Perdahl et al.

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