Multistage process for preparing ferroboron

Details Multistage process for preparing ferroboron Multistage process for preparing ferroboron

1983-11-30

1984-12-04

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 10R, 75123B, 75129, C21C 552

Patent

active

044862261

ABSTRACT:
A process for preparing ferroboron comprises first heating a mixture of boron oxide or boric acid, iron or iron oxide, carbon, and a carbohydrate to produce a foraminous char. During a subsequent two-stage reduction process in an electric or arc plasma furnace, ferroboron is produced and gaseous boric oxides are evolved. The boron values are captured as they move to the cooler regions of the furnace, resulting in high boron yields. The process is particularly useful in preparing pure and inexpensive raw material for the production of amorphous ferroalloys.

REFERENCES:
patent: 4247528 (1981-01-01), Dosaj
patent: 4397691 (1983-08-01), Hamada
Rosenfelder, "Industrial Development of Amorphous Metal," Chemistry & Industry, (Aug. 15, 1983).

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