Location History:
- Ratingen, DE (1978)
- Hosel, DE (1979)
Company Filing History:
2 out of 3 
1 out of 1 Years Active: 1978-1979
Title: Gunter Duderstadt: Innovator in Ferro-Alloy Processing
Introduction
Gunter Duderstadt is a notable inventor based in Hosel, Germany. He has made significant contributions to the field of ferro-alloy processing, holding a total of 3 patents. His innovative methods have advanced the efficiency and effectiveness of ferro-alloy refinement.
Latest Patents
One of his latest patents is a "Method of rapidly decarburizing ferro-alloys with oxygen." This invention relates to a technique for rapidly decarburizing high-carbon ferro-alloys while minimizing the oxidation of essential alloying elements, such as chromium and manganese. The method involves blowing an oxidizing gas under the surface of a molten ferro-alloy bath, with specific gas flow rates to achieve a carbon content reduction of about 0.2% to 1%. Additionally, comminuted solids, particularly alkaline-earth metal oxides like powdered lime, can be mixed with the oxidizing gas to prevent the ejection of molten metal from the bath.
Another significant patent is the "Method of refining ferro-alloys." In this process, ferrochrome or ferromanganese is heated to at least 100 degrees Celsius above its melting point to create a bath. Oxygen is then introduced into the melt below the bath surface, within a protective gas envelope. The oxygen flow rate is carefully controlled to ensure that 1% of carbon is oxidized within a maximum of ten minutes, ideally within five minutes.
Career Highlights
Gunter Duderstadt has worked with several prominent companies in the metallurgical field. Notably, he has been associated with GFE Gesellschaft für Elektrometallurgie mit beschränkter Haftung and Gesellschaft für Elektrometallurgie mbH. His work in these organizations has contributed to advancements in ferro-alloy processing technologies.
Collaborations
Throughout his career, Duderstadt has collaborated with notable professionals in the field, including Friedrich Breuer and Rudolf Fichte. These collaborations have further enriched his contributions to ferro-alloy innovations.
Conclusion
Gunter Duderstadt's innovative methods in ferro-alloy processing have significantly impacted the industry. His patents reflect a deep understanding of metallurgical processes and a commitment to advancing technology in this field.