Ahmad Nafissi

Title: Ahmad Nafissi: Innovator in Red Mud Reclamation

Introduction

Ahmad Nafissi is a notable inventor based in Tehran, Iran. He has made significant contributions to the field of materials science, particularly in the reclamation of red mud, a by-product of aluminum production. His innovative approach has the potential to enhance the sustainability of aluminum processing.

Latest Patents

Nafissi holds a patent for the "Reclamation treatment of red mud." This process involves digesting red mud with concentrated sulfuric acid or sulfur trioxide gas to produce sulfates that can be leached out with water. The solution is then heated at a pH of 1 to precipitate titanium oxide hydrate through hydrolysis. The remaining sulfates are obtained in solid form by evaporation or precipitation with acetone, followed by roasting to convert aluminum and iron to their oxide forms. This method effectively separates aluminum and iron oxide using the Bayer process, despite the complexity indicated by x-ray diffusion patterns.

Career Highlights

Throughout his career, Ahmad Nafissi has worked with prominent organizations, including Kernforschungsanlage Julich and Vereinigte Aluminum-Werke. His experience in these companies has enriched his expertise in aluminum processing and materials science.

Collaborations

Nafissi has collaborated with notable professionals in his field, including Gunther Winkhaus and Erich Zimmer. Their collective efforts have contributed to advancements in the reclamation of industrial by-products.

Conclusion

Ahmad Nafissi's innovative work in the reclamation of red mud showcases his commitment to improving industrial processes and sustainability. His contributions are significant in the field of materials science and continue to influence the industry.