SEPARATION OF GOLD FROM IODINE-IODIDE SOLUTIONS BY CEMENTATION ON ZINC PARTICLES

Authors
ANGELIDIS TN KYDROS KA
Citation
Tn. Angelidis et Ka. Kydros, SEPARATION OF GOLD FROM IODINE-IODIDE SOLUTIONS BY CEMENTATION ON ZINC PARTICLES, Separation science and technology, 31(8), 1996, pp. 1105-1121
Citations number
19
Categorie Soggetti
Engineering, Chemical","Chemistry Analytical
Journal title
Separation science and technology → ACNP
ISSN journal
01496395
Volume
31
Issue
8
Year of publication
1996
Pages
1105 - 1121
Database
ISI
SICI code
0149-6395(1996)31:8<1105:SOGFIS>2.0.ZU;2-P
Abstract
Separation of gold from iodine-iodide solutions by cementation on zinc particles was studied. The effect of various parameters such as mixin g rate, temperature, zinc particles size, and initial concentrations o f gold-iodide complex and iodine were examined. The reaction was found to be under diffusion control at the conditions studied. Due to iodin e side reactions, excess zinc consumption and a subsequent retardation of the cementation reaction rate were identified. A well-defined, con ventional first-order kinetics model was established to explain the ex perimental findings.