Location History:
- Muelheim, DE (1986)
- Mulheim, DE (1980 - 1991)
Company Filing History:
7 out of 268 
1 out of 1 Years Active: 1980-1991
Title: Wilhelm Janssen: Innovator in Ferrochromium Production
Introduction
Wilhelm Janssen is a notable inventor based in Mulheim, Germany. He has made significant contributions to the field of metallurgy, particularly in the production of ferrochromium. With a total of 8 patents to his name, Janssen's work has had a lasting impact on the industry.
Latest Patents
Janssen's latest patents focus on innovative processes and apparatuses for the production of ferrochromium. One of his key inventions involves a method that allows for the production of ferrochromium with a carbon content ranging from about 0.02 to about 10 weight percent. This process includes providing a mixture of iron-containing chromium ore, coal, and specific slag formers. The mixture is heated in a rotary furnace under controlled conditions, resulting in a reaction product that is subsequently cooled and melted to obtain ferrochromium. Another patent outlines a similar process that emphasizes the reduction of ore mixed with coal and slag-forming constituents in a rotary kiln, followed by melting in a furnace. This method effectively separates the gangue from the reduced ore before the melting process.
Career Highlights
Throughout his career, Janssen has worked with prominent companies such as Fried. Krupp Gesellschaft mit beschränkter Haftung and Fried. Krupp Gesellschaft. His experience in these organizations has contributed to his expertise in metallurgical processes and innovations.
Collaborations
Janssen has collaborated with notable colleagues, including Klaus H. Ulrich and Dieter Neuschuetz. These partnerships have likely enhanced his research and development efforts in the field of ferrochromium production.
Conclusion
Wilhelm Janssen's contributions to the production of ferrochromium through innovative processes and apparatuses have established him as a significant figure in metallurgy. His patents reflect a commitment to advancing the industry and improving production methods.