This inventor holds 2 USPTO granted patents. Top assignees: Almasfuzitoi Timfoldgyar, Aluterv Aluminiumipari Tervezo Vallalat, Femipari Kutato Intezet. Active years: 1976-1978.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 3 
1 out of 3 
1 out of 3 Years Active: 1976-1978
Title: Gyorgy Sigmond: Innovator in Bauxite Processing
Introduction
Gyorgy Sigmond is a notable inventor based in Budapest, Hungary. He has made significant contributions to the field of bauxite processing, particularly through his innovative methods that enhance alumina production. With a total of 2 patents, his work has had a lasting impact on the industry.
Latest Patents
Sigmond's latest patents include a "Process for digesting goethite-containing bauxites" and a "Method for processing bauxites." The first patent focuses on an improved process for alumina production using Bayer technology, specifically targeting bauxites that contain goethite. This invention accelerates the digestion process, transforms goethite into hematite, increases alumina yield, and reduces caustic soda losses. The essence of this process involves conducting digestion in the presence of 2-6% CaO and 0.2-2.0% of various metal ions based on the weight of the dry bauxite.
The second patent outlines a method for processing bauxites that also aims to increase the yield of Al₂O₃ while decreasing caustic soda losses. This method is particularly effective for goethite bauxites of boehmite and/or diaspore type, and it involves digestion at temperatures ranging from 180°C to 300°C. The process utilizes an aluminate liquor with a specific concentration of caustic soda and incorporates calcium compounds and sulfate salts to optimize the conversion of goethite to hematite.
Career Highlights
Throughout his career, Gyorgy Sigmond has worked with various companies, including Aluterv Aluminiumipari Tervező Vállalat. His expertise in bauxite processing has positioned him as a key figure in the industry, contributing to advancements that benefit alumina production.
Collaborations
Sigmond has collaborated with notable individuals such as Kalman Wentzely and Janos Zambo. These partnerships have further enriched his work and have led to innovative solutions in the field of bauxite processing.
Conclusion
Gyorgy Sigmond's contributions to bauxite processing through his patents and collaborations highlight his role as an influential inventor. His innovative methods continue to shape the industry and improve alumina production processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile