Recovery of valuable elements from spent Li-batteries.

Recovery of valuable elements from spent Li-batteries. Research Abstract Details 

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Recovery of valuable elements from spent Li-batteries. Abstract Text:

Paulino, Busnardo,Julio Carlos Afonso,

This work examines two recycling processes for spent Li/MnO(2) and Li-ion batteries. The anode, cathode and electrolyte (LiPF(6)) were submitted to one of the following procedures: (a) calcination at 500 degrees C (5h) followed by solvent extraction to recover lithium salts (fluoride, phosphate) in good yield (90wt%). The residual solid was treated with H(2)SO(4) containing H(2)O(2) and on evaporation gave high purity grade cobalt or manganese sulfate; (b) fusion with KHSO(4) (500 degrees C, 5h). The resulting aqueous solution was added dropwise to a solution of NaOH, giving cobalt or manganese as impure precipitate. Addition of KF precipitated high purity grade LiF in moderate yield (50wt%). The final aqueous solution on treatment with calcium sulfate precipitated the corresponding phosphate and fluoride salts.

Recovery of valuable elements from spent Li-batteries. Publishing Authors By Initials

JF Paulino,NG Busnardo,JC Afonso,

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Recovery of valuable elements from spent Li-batteries. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of hazardous materials

VOLUME: 150

Page Numbers: 843-9

Journal Abbreviation: J. Hazard. Mater.

ISSN: 0304-3894

DAY: 22

MONTH: 10

YEAR: 2007

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LANGUAGE: eng

NlmUniqueID: 9422688

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AFFILIATION: Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro, P.O. Box 68563, 21949-900 Rio de Janeiro, Brazil.

Country: Netherlands

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MEDLINETA: J Hazard Mater

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