Location History:
- Offenbach, DE (1976 - 1982)
- Friedrichsdorf, DE (1995 - 1998)
Company Filing History:
6 out of 642 
1 out of 118 
1 out of 10,754 
Years Active: 1976-1998
Title: Michael Tacke: Innovator in Gold and Silver Ore Treatment
Introduction
Michael Tacke is a notable inventor based in Friedrichsdorf, Germany. He has made significant contributions to the field of metallurgy, particularly in the treatment of gold and silver-containing ores. With a total of 6 patents to his name, Tacke's work has advanced the methods used in mineral processing.
Latest Patents
Tacke's latest patents include innovative processes for treating gold-containing sulfide ores. One of his notable inventions involves calcining ore that contains gold and at least one of the metals silver, copper, nickel, zinc, or iron at temperatures ranging from 500°C to 900°C. This process produces a metal-oxide-containing solids mixture and a SO₂-containing exhaust gas. The exhaust gas is then treated with an aqueous solution to create a sulfite-containing solution. The solids mixture is cooled and stirred with this solution, allowing for the dissolution of metal oxides and the formation of a sulfate-containing solution. In a first separating zone, the sulfate-containing solution is separated from the solids, which can then be used for gold leaching or further treatment for nonferrous metals.
Another patent focuses on treating sulfide ores containing gold and/or silver, where the ore is calcined similarly, producing a metal-oxide-containing solids mixture and SO₂-containing exhaust gas. The cooled solids mixture is introduced into a fluidized-bed reactor, where metal sulfate is produced, binding at least 10% of the sulfur content in the exhaust gas. The resulting solids mixture is then treated with an aqueous acid solution to dissolve the metal sulfate, allowing for the recovery of gold and/or silver.
Career Highlights
Throughout his career, Michael Tacke has worked with prominent companies such as Metallgesellschaft Aktiengesellschaft and Süd-Chemie AG. His experience in these organizations has contributed to his expertise in the field of metallurgy and mineral processing.
Collaborations
Tacke has collaborated with notable professionals in his field, including Hugo Grimm and Karl-Heinz Dorr. These collaborations have likely enriched his work and contributed to the development of his innovative processes.
Conclusion
Michael Tacke's contributions to the treatment of gold and silver ores have made a significant impact in the field of metallurgy. His innovative processes and collaborations with industry professionals highlight his dedication to advancing mineral processing techniques.