Pre-treatment process for liberation of metals from waste...

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium

Reexamination Certificate

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C075S711000, C029S403100, C241S024140

Reexamination Certificate

active

07867317

ABSTRACT:
A method for recovering valuable metals contained in printed circuit boards of waste electronic machine, and more particularly, a method for liberating metal and plastic laminated in waste printed circuit boards uses an organic solvent and then separates and recovers the liberated metal components using an electrostatic separation process.

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Machine translation of JP 07086724 published Mar. 31, 1995.
Machine translation of JP 2007092138 published Apr. 12, 2007.
KR 10-20010042706 (application number), published Dec. 3, 2004, abstract.
Machine translation of JP 2007-092138 published Sep. 29, 2005.

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