Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Having specifically intended extraneously added iron group...
Reexamination Certificate
2006-09-12
2009-11-24
Johnson, Edward M (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Solid sorbent
Having specifically intended extraneously added iron group...
C423S493000
Reexamination Certificate
active
07622423
ABSTRACT:
The present invention provides a method for making modified jacobsite, Al-doped maghemite or modified maghemite nanoparticles that can be used to adsorb heavy metals, such as Cr(VI), found in wastewater. The magnetic nanoparticles can be separated using a magnetic field after adsorbing heavy metals from wastewater, and processed for reused.
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Chen Guohua
Hu Jing
Lo Man Chi
Cooper & Dunham LLP
Johnson Edward M
Katz, Esq. Robert D.
The Hong Kong University of Science & Technology
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