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OF EXCELLENCE

IN INTERNATIONAL

MEETINGS

YEARS

Journal of EnvironmentalWaste Management and Recycling | Volume 2

Earth Science 2019

May 22-23, 2019 | Rome, Italy

EARTH SCIENCE,

RECYCLING & SPACE TECHNOLOGY

International Conference on

CONCENTRATION OF CATHODE MATERIALS FROM POST-CONSUMER LITHIUM-ION

BATTERY BY ROASTING, SELECTIVE GRINDING AND PHYSICAL-PHYSICOCHEMICAL

SEPARATION

Shuji Owada, Takahiro Suwa

and

Nozomi Sasai

Waseda University, Japan

his study describes a concentration process of cathode materials, Co, Ni and Mn from post-consumer lithi-

um-ion battery by applying roasting, selective grinding followed by various physical and physicochemical

separationmethods. Nowadays vast amount of lithium-ion batteries (LIBs) has been used for electric/electronic

devices and various pyro- and hydro-metallurgical processes was developed for the recovery of the cathode

materials from them but the concentration process from post-consumer batteries is still under the develop-

ment. Roasting is one of the most radial method not only to discharge remaining electricity but also to achieve

the phase transition of compositional materials in order to facilitate the recovery of valuable components and

the rejection of useless/hazardous ones. Selective grinding and size classification divide the various materials

into several characteristic size fractions. Flotation removes fine hydrophobic carbon particles and magnetic

separation concentrates the cathode materials which were transformed into magnetic oxides and/or metal

phases in the above roasting. Gravity separation such as wet tabling also concentrate on the heavy cathode

materials from other light fractions. In this paper, author compares the various combinations of the above

methods and proposes the best concentration flow, which could be economically feasible.

Shuji Owada et al., J Environ Waste Management and Recycling 2019, Volume 2

Shuji Owada has completed his Doctor of Engineering fromWaseda University, Japan in 1984. After being Research Associate, Lec-

turer, Associate Professor, he became a Professor ofWaseda University in 1995. He was assigned to the posts of President of Research

Collaboration and Promotion Center, Vice-President of Environmental Research Institute, and Vice-Dean of School of Science and

Engineering twice in the university. Outside the university, he experienced many roles in academic institutes, such as President of

the Mining and Materials Processing Institute of Japan (MMIJ), President of the Resources Processing Society (RPSJ) of Japan and

many governmental committee members in the field of recycling and environmental science and engineering. He is also visiting

Professor of The University of Tokyo, Tohoku University and Akita University, Japan. He published over 100 original papers and over

700 presentations in domestic and overseas in the field of resources recycling and mineral processing.

BIOGRAPHY