Precious metal recovery

Classifying – separating – and assorting solids – Magnetic – Paramagnetic

Reexamination Certificate

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Details

C209S008000, C209S225000

Reexamination Certificate

active

07318528

ABSTRACT:
A pulse of over six kilovolts with a duration of 200 nanoseconds causes an explosion that fragments a mineral deposit with metals embedded therein. The fragmentation separates the metals from the mineral. A conditioning electromagnet temporarily magnetizes the metals. A sorting magnet attracts one of the magnetized metals.

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patent: 4313573 (1982-02-01), Goldberger et al.
patent: 5762204 (1998-06-01), Yang et al.
patent: 6006920 (1999-12-01), Bilimoria et al.

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