LEACHING KINETICS OF COLEMANITE BY AQUEOUS EDTA SOLUTIONS


KARAGOLGE Z. , ALKAN M., KOCAKERIM M.

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, vol.23, no.4, pp.409-413, 1992 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 4
  • Publication Date: 1992
  • Doi Number: 10.1007/bf02649658
  • Title of Journal : METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY
  • Page Numbers: pp.409-413

Abstract

The dissolution kinetics of colemanite, a boron-containing mineral, in aqueous disodium EDTA solutions were studied. The effects of concentration and pH of the solution, particle size, and temperature were examined. A decrease in pH and particle size increased the dissolution rate, while an increase in the concentration of the solution and temperature increased the rate. The activation energy and pre-exponential factor were calculated as 50.6 kJ mol-1 and 5.14 x 10(7) m s-1, respectively.