Simultaneous recovery of zinc and manganese from cadmium-containing mixed-battery leachate by separation and purification process

Dong Ju Shin, Sung Ho Joo, Dongseok Lee, Jin Tae Park, Dong Joon Min, Shun Myung Shin

Research output: Contribution to journalArticle

Abstract

A study on the simultaneous separation of Zn and Mn from a feed solution containing various types of dissolved battery wastes was carried out by a solvent extraction process using D2EHPA. The selective recovery of Zn and Mn from feed solutions containing Cd ions is difficult due to their similar physicochemical behavior. Therefore, 99.9% of Zn, 99.8% of Mn, and 99.9% of Cd were extracted using the optimum conditions of 40 vol% D2EHPA, 40 vol% NaOH concentration, 2-stage countercurrent extraction, and an O/A ratio of 2. The Co-extracted Co could be scrubbed using pH 2 sulfuric acid at an O/A ratio of 1, and Cd was then scrubbed using 0.5 M Na2S2O3. The results of the Cd scrubbing experiments indicated that the optimum conditions were 3-stage countercurrent scrubbing and an O/A ratio of 2, and the scrubbing efficiency of Cd was approximately 99.9%. The Zn and Mn that remained in the loaded organic could be enriched by increasing the O/A ratio of the stripping stage to 6. From this concentrated solution, high purity zinc manganese sulfate powder, which can be used as a raw material for fertilizer for crop cultivation, was manufactured.

Original languageEnglish
Pages (from-to)980-987
Number of pages8
JournalMaterials Transactions
Volume60
Issue number6
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

washing
Manganese
Cadmium
purification
cadmium
Purification
electric batteries
manganese
Zinc
zinc
recovery
Recovery
fertilizers
solvent extraction
crops
Fertilizers
Solvent extraction
sulfuric acid
stripping
Sulfuric acid

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Shin, Dong Ju ; Joo, Sung Ho ; Lee, Dongseok ; Park, Jin Tae ; Min, Dong Joon ; Shin, Shun Myung. / Simultaneous recovery of zinc and manganese from cadmium-containing mixed-battery leachate by separation and purification process. In: Materials Transactions. 2019 ; Vol. 60, No. 6. pp. 980-987.
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Simultaneous recovery of zinc and manganese from cadmium-containing mixed-battery leachate by separation and purification process. / Shin, Dong Ju; Joo, Sung Ho; Lee, Dongseok; Park, Jin Tae; Min, Dong Joon; Shin, Shun Myung.

In: Materials Transactions, Vol. 60, No. 6, 01.01.2019, p. 980-987.

Research output: Contribution to journalArticle

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