A leaden separating method and a device from glass of lead

Japanese Patent JP6150182

B2

The invention provides a method and device of separating lead from lead glass, which does not employ ethyl alcohol or acid in abstraction and separation, and can perform processing under the low temperatures lower than the melting temperature of glass. The method comprises: adding a reducing agent into lead glass for mixing to form a mixture (4) according to a ratio more than 3:10 between reducing agents including carbon and lead glass powder; heating the mixture under a first temperature higher than 300 DEG C and lower than the fusion temperature of glass so s to extract lead in the lead glass powder in the mixture to the particle surfaces of the lead glass powder; and allowing the lead glass powder extracted to the particle surfaces of the lead glass powder to contact with a lead adsorption material (7a) having high lead affinity under a second temperature higher than the lead fusion temperature and lower than the glass fusion temperature, allowing the lead of the glass powder to absorb the lead adsorption material, thereby separating lead from lead glass.

Yuichi Hata
Isamu Aokura
Tamaki Kojima

JP2015004356A

June 21, 2017

January 13, 2015

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B09B3/00; C22B13/02; C22B5/10; C22B7/00

JP2012021176A
JP2012092406A
JP2012097288A
JP2013539408A
JP2014133931A
JP7096264A
JP2012245494A
JP2012239945A

US20130129585
WO2013118695A1
EP2813297A1

Mitsuo Tanaka
Samejima Mutsumi
Hiroshi Okabe
Mitsuo Wada

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