Company Filing History:
Years Active: 1981-1982
Title: Maxson L Stewart: Innovator in Hydrometallurgical Processes
Introduction
Maxson L Stewart is a notable inventor based in Bremen, GA (US). He has made significant contributions to the field of hydrometallurgy, particularly in the extraction and purification of valuable metals. With a total of 3 patents to his name, Stewart's work has had a considerable impact on the industry.
Latest Patents
Stewart's latest patents include innovative processes for the separative treatment of zinc-bearing flue dust and the purification of nickel sulfate. The first patent outlines a hydrometallurgical process for extracting zinc sulfate from metallurgical flue dust, which contains lead, chlorine, and iron. This process involves leaching the flue dust in sulfuric acid, followed by selective adjustments of pH for chloride removal and subsequent purification steps to recover commercial-grade zinc sulfate. The second patent focuses on the purification of nickel sulfate through ammoniacal leaching and pH regulated solvent-extraction, allowing for the regeneration of both the extractant and the leach solution. This method is particularly effective for obtaining high purity nickel sulfate from residues in the electrorefining of secondary copper.
Career Highlights
Maxson L Stewart is currently employed at Southwire Company, LLC, where he continues to develop and refine his innovative processes. His expertise in hydrometallurgy has positioned him as a key figure in the advancement of metal extraction technologies.
Collaborations
Stewart has collaborated with notable coworkers, including Robert R Odle and William W Brunson, contributing to a dynamic work environment that fosters innovation and progress in their field.
Conclusion
Maxson L Stewart's contributions to hydrometallurgical processes demonstrate his commitment to innovation and excellence in metal extraction. His patents reflect a deep understanding of complex chemical processes, making him a valuable asset to the industry.