Insights regarding the reaction rate of Co during the leaching of a hard metal substrate in hydrochloric media

Gregor Kücher, Stefan Luidold, Christoph Czettl, Christian Storf

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in Konferenzband


The aim of the first part of this research consisted of determing the influence of temperature, acid and oxidant concentration on the extractability of Co out of a cemented carbide substrate within 30 min. To this, a DOE namely CCF served for the evaluation along with a particular specimen preparation. The core results comprised a chemical kinetic model equation inclusive response surface diagrams. Afterwards, the attained findings conduced to explore the long term leaching behavior respective a semi-direct recycling methodolgy. On the contrary to the primary examination, a pump provided continuous feeding of the oxidant to esure a constant leaching of the binder metal for several days.
TitelInternational Conference on Refractory Metals and Hard Materials-Proceedings
PublikationsstatusVeröffentlicht - 28 Mai 2017
Veranstaltung19th Plansee Seminar - Reutte, Österreich
Dauer: 28 Mai 20172 Juni 2017


Konferenz19th Plansee Seminar

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