Recovery of Cobalt from discarded Li-ion Batteries of Mobile Phone

1.

Title of Product/Design/Equipment

Recovery of Cobalt from discarded Li-ion Batteries of Mobile Phone

2.

IPR Status

Patent/ Abroad IPR Details

Patent Filed

3.

Application/Uses

Recovery of Cobalt

4.

Salient Technical Features including Competing Features

A process is developed for the dissolution of metals from discarded lithium ion batteries (LIBs) of mobile phone. Diluted sulfuric acid in presence of an oxidant was used to leach out -70-80% cobalt along with other metals in 60 min at elevated temperature. Leach liquor generated was further processed through solvent extraction, precipitation, crystallization/electro-winning techniques to recover cobalt as salt/ metal

5.

Level/Scale of Development

100g to 5 Kg (Lab Scale)

6.

Environmental Considerations

About 1 to 10 L of acidic effluent is generated which is further treated to recover acid. The solid waste containing other metals is further treated for its recovery as value added product.

7.

Status of Commercialization

Ready for commercialization

8.

Major Raw Materials to be Utilized

Discarded mobile phone batteries, organic extractant, modifier, diluents, etc

9.

Major Plant Equipment and Machinery Required

Scutter-crusher, Flotation set-up, Leaching reactor, Filtration unit, Solvent extraction equipment (Mixer settler unit), Evaporator, Crystallizer, Electro-winning cell, rectifier, etc.

10.

Techno-Economics

Capital Cost-10 Lakhs Recurring Cost -2Lakhs/Year

11.

Technology Package

(a) Process-Know-how, (b) Details of equipment & (c) Quality assurance methods. Assistance in setting up the plant on separate terms