Sylvestre Vire

Title: Sylvestre Vire: Innovator in Aluminum Purification

Introduction

Sylvestre Vire is a notable inventor based in Neuhausen, Switzerland. He has made significant contributions to the field of aluminum purification, holding a total of 3 patents. His innovative approaches have the potential to enhance the efficiency and effectiveness of aluminum recycling processes.

Latest Patents

One of his latest patents is a cell for electrolytic purification of aluminum. This thermally insulated cell features a steel shell surrounded by an outer wall, lined with a material resistant to electrolyte and high temperatures. It is equipped with a lid, an electrolyte based on alkali chlorides, and segregation wells for the addition of aluminum to be purified. The design includes a supply means for feeding in electrolyte material, which also functions as a waste gas extractor. Additionally, a collection and run-off system is provided for high purity aluminum. Inside the cell, bipolar electrode units are connected electrically in series and arranged parallel to the end electrodes, comprising graphite frames sealed off by a diaphragm plate.

Another significant patent involves a process for refining scrap aluminum. This method utilizes a salt melt of alkali and/or alkali earth chlorides and fluorides, heated to 50-100 degrees Celsius above the melting point. Heavily contaminated scrap aluminum, preheated to 400-500 degrees Celsius, is added to a melting or holding furnace containing the less dense salt melt. The mixture is stirred if necessary and held at the specified temperature for at least one hour. The sedimented metal phase and the salt melt are then filtered through a resistant open pore ceramic filter to remove solid impurities. The purified aluminum is subsequently transferred to an electrolytic cell, with the molten salt melt being recycled.

Career Highlights

Sylvestre Vire is associated with Swiss Aluminium Ltd., where he continues to develop innovative solutions for aluminum purification. His work has been instrumental in advancing the technology used in the recycling of aluminum, contributing to more sustainable practices in the industry.

Collaborations

He collaborates with Ludwig Gauckler, further enhancing the research and development efforts in aluminum purification technologies.

Conclusion

Sylvestre Vire's contributions to aluminum purification through his innovative patents demonstrate his commitment to advancing recycling technologies. His work not only improves efficiency but also promotes sustainability in the aluminum industry.