Investigation of Kinetics of Residual Elements Transitions into Melt under Sulphuric Acid Leaching of Zinc Containing Middling Products of Two Stages Waelz Process of Zinc Cakes. Part I. Leaching Kinetics of Individual Pattern Oxides
https://doi.org/10.17073/0021-3438-2015-0-12-16
Abstract
By means of leaching individual pattern oxide of iron, copper, and lead were determined kinetics of transfer of residual elements into melt under leaching of calcined Waelz-oxide of zinc production. Output of residual elements under leaching of pattern iron and copper oxides was limited by induction period of reaction propagation, that is connected with selective adsorption of protons on oxide surface, individual active sites with consequent its diffusion in the volume of oxide phase. At degree of extraction α < 0,5 inherent chemical interactions is the slowest stage, reaction is occurred in kinetic regime.
About the Authors
A. M. PanshinRussian Federation
O. S. Anisimova
Russian Federation
S. V. Mamyachenkov
Russian Federation
D. A. Rogozhnikov
Russian Federation
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Review
For citations:
Panshin A.M., Anisimova O.S., Mamyachenkov S.V., Rogozhnikov D.A. Investigation of Kinetics of Residual Elements Transitions into Melt under Sulphuric Acid Leaching of Zinc Containing Middling Products of Two Stages Waelz Process of Zinc Cakes. Part I. Leaching Kinetics of Individual Pattern Oxides. Izvestiya. Non-Ferrous Metallurgy. 2015:12-16. (In Russ.) https://doi.org/10.17073/0021-3438-2015-0-12-16