Patent · US Expired

Method for producing chromium containing molten iron with low sulphur concentration

US5028388A · kind A · utility

1Cited by
2References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 19, 1990
Grant dateJul 2, 1991
Priority date
Expiry dateNov 19, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC21C5/005
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Reduction of chromium oxide is performed by utilizing refinement or reduction container having top-blowing capability. Chromium oxide is charged in the molten iron bath in the aforementioned container. Content of slag is adjusted to maintain the following condition: EQU CaO/SiO.sub.2 :2.1 to 3.5 EQU MgO/Al.sub.2 O.sub.3 :0.6 to 0.8

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