Patent · US Expired

Process for the heat treatment of fine-grained iron ore and for the conversion of the heat treated iron ore to metallic iron

US5560762A · kind A · utility

22Cited by

2References

18Claims

0Family size

Assignee

Metallgesellschaft AG · DE

Inventors

Wolfgang Bresser · Großostheim, DE
Martin Hirsch · Friedrichsdorf, DE
Alpaydin Saatci · Frankfurt am Main, DE

Key dates

Filing date	Feb 9, 1995
Grant date	Oct 1, 1996
Priority date	—
Expiry date	Feb 9, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/134
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Disclosed is a process for the heat treatment of fine-grained iron ore and for the conversion of the heat-treated iron ore to metallic iron, wherein PA1 a) the fine iron ore is reacted with at least one binder to produce particles having a particle size of >0.1 to 5 mm, PA1 b) the particles according to process stage (a) are dried, PA1 c) the particles dried according to process stage (b) are heat-treated at a temperature of 700.degree. to 1100.degree. C., and PA1 d) the heat-treated particles are reacted to form metallic iron.

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