Patent · US Expired

Process for the production of metal from metal ores

US5772727A · kind A · utility

10Cited by

5References

18Claims

0Family size

Assignee

Stahlwerke Bremen GmbH · DE

Inventors

Hans De Haas · Papenburg, DE
Joachim Janz · Oyten, DE
Horstmar Mohnkern · Ritterhude, DE
Manfred Voss · Bremen, DE

Key dates

Filing date	Aug 18, 1995
Grant date	Jun 30, 1998
Priority date	—
Expiry date	Aug 18, 2015

Classification

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

Abstract

A process of producing metal from a metal ore containing metal oxides includes the steps of: obtaining a reducing gas containing at least one of carbon and hydrogen from solid substances containing at least one of carbon and hydrocarbons; bringing the ore into reaction contact with the reducing gas in a metallurgical blast furnace; and injecting a comminuted, fluidized plastics material into a blast current in a hearth region of the blast furnace, the plastics material comprising an agglomerate including plastics particles having a particle size substantially between 1 mm and 10 mm.

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