Company Filing History:
Years Active: 1985
Title: David Naden: Innovator in Metal Recovery and Control Devices
Introduction
David Naden is a notable inventor based in Stockton-on-Tees, GB. He has made significant contributions to the fields of metal recovery and control devices, holding a total of 2 patents. His innovative approaches have the potential to enhance efficiency in various industrial processes.
Latest Patents
Naden's latest patents include a process for metal sulphide extraction. This process involves recovering metal values from a zinc-containing complex sulphide material through a series of leaching stages. The first stage utilizes a controlled amount of an aqueous chloride lixiviant solution containing cupric chloride, which solubilizes zinc and precipitates cupric sulphide. The second stage treats the solids under oxidizing conditions to further recover metal values and regenerate the lixiviant solution.
Another significant patent is a control device designed for managing the transfer of adsorbent in an adsorbent-in-pulp contactor. This device features a vessel with an inclined screen that retains adsorbent particles while allowing pulp to pass through. It includes mechanisms for measuring the volume of the adsorbent and recovering drained solids efficiently.
Career Highlights
Throughout his career, David Naden has worked with reputable companies such as Duval Corporation and Davy McKee (Stockton) Limited. His experience in these organizations has contributed to his expertise in the field of metal recovery and control systems.
Collaborations
Naden has collaborated with notable individuals in his field, including Leonard R. Ochs and Archibald W. Fletcher. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
David Naden's contributions to the fields of metal recovery and control devices demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving industrial processes and advancing technology.