Company Filing History:
Years Active: 1976-1978
Title: **David L. Natwig: Innovator in Cobalt Recovery Technologies**
Introduction
David L. Natwig, based in Brighton, MA, has made significant contributions to the field of materials recovery with a focus on cobalt extraction processes. With a total of four patents to his name, his innovative approaches have paved the way for more efficient and environmentally friendly recovery methods in the mining and materials industries.
Latest Patents
One of Natwig's notable inventions is the **Cobalt stripping process**. This process involves the reduction of cobalt ions in organic materials and allows for their efficient recovery using a dilute acid, rendering the organic recyclable. In essence, it provides a dual benefit by stripping cobalt effectively while ensuring the sustainability of materials used in the process.
Additionally, Natwig has developed a method for **Scrubbing ammonia from oxime liquid ion exchange reagents**. This invention serves as a secondary scrub to remove extracted ammonia prior to acid stripping during the recovery of metals from ammoniacal leach liquors. By employing metal sulfates in an aqueous solution with a pH of less than 7, the process avoids the pH rise typically associated with acid scrubbing, allowing for a seamless exchange of ammonia for copper or nickel, while maintaining stability in the scrub solution.
Career Highlights
David L. Natwig has built his career at **Kennecott Copper Corporation**, where he has been instrumental in advancing cobalt recovery technologies. His work not only showcases his technical expertise but also underscores the corporation's commitment to innovation within the mining sector.
Collaborations
Throughout his career, Natwig has collaborated with notable colleagues such as **Roald R. Skarbo** and **Gale L. Hubred**. These partnerships have likely contributed to the development and refinement of his patented technologies, enabling a multidisciplinary approach to solving complex problems in material recovery.
Conclusion
David L. Natwig stands out as a key inventor in the field of cobalt recovery, with a track record of innovative patents that enhance recovery processes while promoting environmental sustainability. His work not only reflects his personal dedication but also highlights the broader impact of innovation in the mining and materials industries.