This inventor holds 2 USPTO granted patents. Top assignees: Duisburger Kupferhutte, Fried. Krupp Gesellschaft MIT Beschrankter Haftung. Active years: 1977-1978.
Company Filing History:
2 out of 6 
1 out of 268 Years Active: 1977-1978
Title: Wilhelm Roever: Innovator in Metal Recovery Processes
Introduction
Wilhelm Roever is a notable inventor based in Duisburg, Germany. He has made significant contributions to the field of metallurgy, particularly in the recovery of valuable metals from various sources. With a total of 2 patents, his work has had a lasting impact on metal processing techniques.
Latest Patents
Roever's latest patents include a process for recovering silver from residues containing silver and lead. This innovative method involves the selective precipitation of silver as silver sulphide using hydrogen sulphide. The process allows for the recovery of silver in a known manner, while also enabling the precipitation of lead from the remaining solution. Additionally, if copper is present in the initial residue, it can be precipitated as sulphide and separated from the silver sulphide through a series of chemical reactions.
Another significant patent by Roever is a method for processing manganese nodules to recover valuable metal values such as nickel, copper, cobalt, and zinc. This method utilizes hydrometallurgical techniques, where raw manganese nodules are suspended in a solution and subjected to high temperatures and pressure. The selective leaching process results in a metal-rich leach solution, from which the desired metals can be recovered.
Career Highlights
Throughout his career, Wilhelm Roever has worked with prominent companies such as Duisburger Kupferhütte and Fried. Krupp Gesellschaft mit beschränkter Haftung. His experience in these organizations has contributed to his expertise in metal recovery processes and innovation in the field.
Collaborations
Roever has collaborated with notable individuals in his field, including Helmut Junghanss and Dieter Neuschutz. These partnerships have likely enhanced his research and development efforts, leading to successful innovations.
Conclusion
Wilhelm Roever's contributions to the field of metallurgy, particularly in metal recovery processes, demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of chemical processes and their applications in industry.