E.Shibata Lab.

(Prof. Etsuro Shibata, Assoc.Prof. Atsushi Iizuka, Assist.Prof. Ken Adachi)
In the future, the use of various electrical andAchievement of Metal Resources Circulation System electronic devices such as mobile phones, PC
based on Non-ferrous Metal Smelting Industry
and electric vehicles is expected to increase at
Various Metal Resources (Mineral resources、E-scrap etc.)
an accelerating pace with growth of population
Material pre-treatments, Major reefing technology, By-products refining,in the world.
Toxic elements stabilization etc.

Interdisciplinary research that breaks through the traditionalframework of Non-ferrous metal smelting disciplines
Physical separation

Hydro/
Electrolytic refining

Pyro-metallurgy

・Crushing・Flotation
・Gravity concentration
・Magnetic separation
・Electrostatic separation
・Automatic sorting etc.

・Leaching・Precipitation
・Purification
・Solvent extraction

・Roasting・Smelting・volatilization
・Flue gas/
Dust treatment
・Molten salt electrolysis(ion exchange resin)・Electrolytic
refining/deposition etc.

etc.

In order to achieve sustainable utilization ofmetal resources, it is necessary to recycle
metals from various waste materials.
In E.Shibata Lab., our goals are developing
non-ferrous metal smelting technologies which
are essential of achieving resources circulationand sustainable society and establish themetal resources recycling system based on
non-ferrous metal smelting industry.

Establishment of Metal Resources Circulation

Non-ferrous smelting
and recycling of secondary resources

Abundant metal resources in Secondary resources
・Waste electric vehicles
Motors, storage batteries,
electrical components,
wire harnesses, etc.
・Metal smelter etc.
・Wastewater sludge
Heavy metals resources
such as Cu, Pb, Zn・Shredder dust
Heat, Cu raw materials
・Municipal solid waste
incinerator fly ash
Zn raw materials

Electric vehicles②①③①シュレッダーダスト (DOWAエコジャーナル)URL:http://www.dowa-ecoj.jp/catalog/2011/20110106_02.html

ペルー パルカ鉱山 (石炭エネルギーセンター)
URL: http://www.jcoal.or.jp/coaldb/shiryo/material/03_fujii.pdf

Overseas mines③製鋼ダスト (日本鉱産)
URL: http://www.nipponkosan.co.jp/prdct_03.html②スラッジ (マテリアルエコリファイン)
URL: http://www.mercompany.co.jp/ja/recycling/metallurgical.html

Industrial wastes

Small electronic devices

Secondaryresources

MiningMineralprocessing

Shredder dustSludge
Steelmaking dust

Refining

・Other scraps, industrial wastes

Cu
銅Pretreatment

ImportBase metal

Rare earth/rare metals

Ni
ニッケル・Waste small electronic/electric devices
Printed board

Preciousmetals/PGM

Pd
パラジウム

Metal resources in secondary resources

Metal resources circulation system
based on non-ferrous smelting
Cu
銅Cu smelting

Active metals refining

Scrap
Physicalseparation
Secondaryresources
Wastes electricaland electronic devices

Solvent
extraction
Zhezkazgan copper-smelting plant (AZERNEWS)
URL: https://www.azernews.az/region/143104.html

Non-ferrous
smelting plant
Efficient circulationof metal resources
based on non-ferrous metals

Smelting

NｄDy

ネオジム

ｼﾞｽﾌﾟﾛｼｳﾑ

Molten salt
electrolysis

ZnSludge
Printed board

Cu concentrate
Cu scrap
Shredder dust

亜鉛

etc.

Residues

Dust

Electrolyte Anode slime

Cu

Cu

Cu

Pb

銅

銅

銅

鉛

Ni

Se

Te

ニッケル

セレン

テルル

Ag

Au

Pt

Pd

銀

金プラチナ

パラジウム

Purification

Refining

Electrolytic Cu

Cu

Cu drossCu

Pb

銅鉛

Cu

Pb

銅鉛

Ag
銀銅

By-product refining
Harris slag

SnSnPbPb

ZnCuPb

スズ鉛

鉛

亜鉛

銅鉛InInAs

SbBi

インジウム

インジウム

ヒ素

アンチモン

ビスマス

AgAgAu銀銀金スズResidues

SeTeNiCoSbBi

セレン

テルル

ニッケル

コバルト

アンチモン

ビスマス

AgAuPtPd

銀

金プラチナ

パラジウム

Recycling

Dust Anode slime

Zn
亜鉛

Wastes・
Recycling

Distillation process
Cd

銅の地金 (住友商事)
URL: https://www.azernews.az/region/143104.html

Leaching

BullionZn smelter
Zn

Crude Zn oxide
Zn concentrate
Electric furnace dust Molten fly ash
亜鉛Zn
亜鉛

電気・電子機器 (Insure direct)
URL: https://insuredirect.qa/electronic-equipment-insurance-eei/

ProductResidues

カドミウムElectrolytic Zn
Distilled ZnInGa

インジウムガリウム

Purification

CdNiCoAs

カドミウム

ニッケル

コバルト

ヒ素

Pb
鉛Pb smelter

Pb, Ag contained
ISP crude Pb
Pb concentratesludge

Recovery and stabilization of toxic elements As
ヒ素

Pb

CuPb

Sn

鉛

銅

鉛

スズ

Ag

In

Sb

Bi

銀

インジウム

アンチモン

ビスマス

Ag

Au

銀

金

Cd

Hg

カドミウム

水銀

Zn

Low-grade
Waste Pb batteries Printed board
亜鉛Pb
鉛Electrolytic Pb