Process and magnetic reagent for the removal of impurities...

Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation

Reexamination Certificate

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C209S004000, C209S215000

Reexamination Certificate

active

08033398

ABSTRACT:
A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.

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