CaSi fume


CaSi fume is a finely dispersed powder material of a gray color. CaSi fume is produced as a by-product during Calcium Silicon production in an electric arc furnace (EAF). Fumes of silicon dioxide are collected by bag house filter in dedusting units.

CaSi fume has obtained a certificate of the factory production control.

Intended use

CaSi fume is used as a secondary raw material for the ferroalloy production (original undensified, partially densified, densified or briquettes), as a secondary raw material for ferrous and non-ferrous metal manufacturing, as a secondary raw material in its dust form or processed into briquettes that can be reused for the ferroalloy production, as an additive into casting powders and for clinker production.
Slovak Environmental Inspectorate with Decision No. 5765/77/2020-27815/2020/770010203/Z77 dated August 27, 2020 did not permit the use of by-product for backfilling and reconstruction of a fall zone.

Packing and transport

CaSi fume is delivered in bulk (in the original form or densified) in cisterns, containers or on covered trucks, railway cars, cisterns, or in big bags according to the work procedures. CaSi fume can also be delivered in the form of briquettes upon customer`s request.