Patent · US Expired

Desulfurization mixture and process for desulfurizing pig iron

US4315773A · kind A · utility

7Cited by

5References

10Claims

0Family size

Assignee

SKW Trostberg Aktiengesellschaft · DE

Inventors

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

Key dates

Filing date	Nov 27, 1979
Grant date	Feb 16, 1982
Priority date	—
Expiry date	Nov 27, 1999

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21C1/025
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Process and composition for desulfurizing pig iron in which the desulfurization agent consists essentially of calcium carbide, a gas-evolving component and fluorspar; the advantage of the process and composition is that it reduces dust pollution and danger of flaming in the handling of the slag after the desulfurization of pig iron.

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