TY - GEN

T1 - Insights regarding the reaction rate of Co during the leaching of a hard metal substrate in hydrochloric media

AU - Kücher, Gregor

AU - Luidold, Stefan

AU - Czettl, Christoph

AU - Storf, Christian

PY - 2017/5/28

Y1 - 2017/5/28

N2 - 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.

AB - 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.

M3 - Conference contribution

BT - International Conference on Refractory Metals and Hard Materials-Proceedings

T2 - 19th Plansee Seminar

Y2 - 28 May 2017 through 2 June 2017

ER -