Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2006-05-16
2006-05-16
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S683000, C210S688000, C210S912000, C210S741000, C210S744000, C210S682000
Reexamination Certificate
active
07045065
ABSTRACT:
A method and related apparatus for monitoring and eliminating gas build-up in an anion exchange column comprised of an anion exchange material placed within a vessel and a liquid layer comprising water contaminated by at least antimony passing through said vessel, which method comprises maintaining said anion exchange material within said liquid layer by allowing gases produced by a reaction of said liquid layer with said anion exchange material to be released from said anion exchange vessel though a valve or other gas release mechanism.
REFERENCES:
patent: 4203441 (1980-05-01), Theeuwes
patent: 6527958 (2003-03-01), Carli et al.
patent: 11216356 (1999-08-01), None
Buarque de Macedo Pedro M.
Penafiel Luis M.
Amster Rothstein & Ebenstein LLP
Barry Chester T.
Buarque de Macedo Pedro M.
Litovitz Theodore Aaron
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