Production of high-purity molybdenum compounds from a Cu-Mo acid-washed liquor using solvent extraction. Part 2: Pilot and plant operations

  • An J
  • Jung B
  • Lee Y
 et al. 
  • 5

    Readers

    Mendeley users who have this article in their library.
  • 15

    Citations

    Citations of this article.

Abstract

Laboratory studies on the recovery of molybdenum from acid wash liquor, reported in Part 1 of this series of papers, identified the optimum process conditions for the production of high purity molybdenum trioxide and calcium molybdate. Pilot and plant scale operations were conducted as a result of the design developed during our laboratory studies. Molybdenum was selectively recovered from a wash liquor containing 10 g/L Mo via a 2-stage extraction using 10% v/v Alamine diluted in Anysol 150 diluent as extractant. The use of 10% v/v isodecanol (IDA) was found to enhance the extraction of molybdate from the wash liquor. The organic extractant liquor had to be scrubbed with water to remove the ammonium sulphate crud formed when ammonium hydroxide solution (20% w/v) was used to strip the molybdate from the loaded organic. The pilot scale study (0.2 m3/day) and plant operation (30 m3/day) were able to be continuously operated to recover 99% Mo from the wash liquor, from which high purity MoO3and CaMoO4of >99.9% purity could be recovered. © 2008 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • High purity
  • Molybdenum
  • Precipitation
  • Solvent extraction

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • J. W. An

  • B. H. Jung

  • Y. H. Lee

  • T. Tran

  • S. J. Kim

  • M. J. Kim

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free