Company Filing History:
Years Active: 1977-1978
Title: Karl Ehlers: Innovator in Cadmium Refinement
Introduction
Karl Ehlers is a notable inventor based in Goslar, Germany. He has made significant contributions to the field of metallurgy, particularly in the refinement of cadmium. With a total of 2 patents to his name, Ehlers has developed innovative methods that enhance the efficiency of cadmium processing.
Latest Patents
Ehlers' latest patents focus on a method and apparatus for refining crude cadmium through vacuum distillation. This method involves passing crude cadmium into a reflux condenser, where higher boiling point impurities are condensed alongside a portion of pure cadmium vapor. The condensate flows in counterflow with the crude cadmium vapor, allowing for the remaining pure cadmium vapor to be subsequently condensed. The apparatus consists of an inverted U-shaped vacuum chamber that includes an evaporator and a reflux condenser in one leg, along with a further condenser in the other leg. A feed pipe for liquid crude cadmium enters the one leg adjacent to the evaporator, while a residue outlet pipe leaves the same leg. This design prevents any back-flow from the residue pipe to the feed pipe. An outlet pipe for the refined cadmium is located in the other leg of the vacuum chamber.
Career Highlights
Karl Ehlers is associated with Preussag Aktiengesellschaft Metall, a company known for its advancements in metal processing. His work has contributed to the development of more efficient methods for refining cadmium, which is essential for various industrial applications.
Collaborations
Ehlers has collaborated with Hans Wilhelm Wieking, a fellow innovator in the field. Their partnership has likely fostered advancements in cadmium refinement techniques.
Conclusion
Karl Ehlers stands out as an influential inventor in the metallurgy sector, particularly for his innovative methods of refining cadmium. His contributions continue to impact the industry positively.