Method for blowing fine particles containing metal oxide into a reducing gas

US6273933A · kind A · utility

Assignees

• Voest-Alpine Industrieanlagenbau GmbH & Co. · AT
• Pohang Iron & Steel Co. Ltd. · KR
• RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY · KR

Inventors

• Leopold Werner Kepplinger · Leonding, AT
• Michael Nagl · Reichenau, AT
• Franz Hauzenberger · Linz, AT
• Bernhard Rinner · Frankenthal (Pfalz), DE
• Felix Wallner · Linz, AT
• Peter Brandl · Linz, AT
• Udo Gennari · Linz, AT
• Johannes Schenk · Linz, AT

Key dates

• Filing date: Jun 14, 1999
• Grant date: Aug 14, 2001
• Expiry date: Jun 14, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/134
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

According to a process for injecting metal-oxide-containing fine particles into a reducing gas, a central material stream formed by the fine particles and a carrier gas is introduced into the reducing gas and at least one gas stream formed by a secondary gas is directed against the material stream to ensure an optimum contact of the fine particles with the reducing gas, the gas stream atomizing the material stream and the fine particles being evenly distributed within the reducing gas.