Company Filing History:
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1 out of 73 
Years Active: 1980
Title: Dennis G Maschmeyer: Innovator in Thermal Activation Processes
Introduction
Dennis G Maschmeyer is a notable inventor based in Fort, California. He has made significant contributions to the field of mineral processing, particularly through his innovative approaches to the thermal activation of ore concentrates. His work has implications for the efficient extraction of valuable minerals.
Latest Patents
Maschmeyer holds a patent for a process titled "Process for thermal-activation of chalcopyrite-pyrite concentrates." This process involves the thermal activation of chalcopyrite-pyrite ore concentrates to activate iron values in both chalcopyrite and pyrite constituents. The method allows for the selective removal of iron values in a subsequent acid leach. Controlled oxidizing conditions are maintained in an oxidizing heating zone, enabling the removal of up to about 90% of total sulfur. This conversion is crucial for transforming pyrite and chalcopyrite into their acid-leachable forms. The process is characterized by a preferable oxidation of 10 to 15% of iron in the concentrate to ferromagnetic oxides, with the remaining sulfur being removed in a reducing zone.
Career Highlights
Throughout his career, Dennis G Maschmeyer has worked with prominent companies in the mining and mineral processing industry. Notable among these are Cominco, Ltd. and Sherritt Gordon Mines Limited. His experience in these organizations has contributed to his expertise in the field and has facilitated the development of his innovative processes.
Collaborations
Maschmeyer has collaborated with various professionals in his field, including Godefridus M Swinkels. These collaborations have likely enriched his research and development efforts, leading to advancements in mineral processing techniques.
Conclusion
Dennis G Maschmeyer is a distinguished inventor whose work in thermal activation processes has the potential to enhance mineral extraction methods. His contributions to the field are significant and reflect his commitment to innovation in mineral processing.