Patent · US Expired

Desulfurizing composition, process for producing them and desulfurization of pig iron and steel

US4260413A · kind A · utility

10Cited by

3References

12Claims

0Family size

Assignee

SKW Trostberg Aktiengesellschaft · DE

Inventors

Alfred Freissmuth · Hadermarkt, AT
Werner Gmohling · Hufschlag, DE
Heinrich Rock · Trostberg, DE

Key dates

Filing date	Jul 24, 1979
Grant date	Apr 7, 1981
Priority date	—
Expiry date	Jul 24, 1999

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21C7/0645
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Improved desulfurization of ferrous melts is obtained by injecting into the melt a readily-flowable desulfurization composition composed of a desulfurization agent, such as calcium carbide or the like and, if desired, an additional component in which the particles are finely ground with about 3 to 20% by weight of carbon for at least about five minutes to coat the particles with a solid, lubricating coating of carbon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.