Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2008-02-01
2008-11-11
Barry, Chester T. (Department: 1797)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S914000
Reexamination Certificate
active
07449118
ABSTRACT:
The invention relates to the use of used alumina to reduce the level of inorganic contaminants, such as mercury and arsenic, from waste fluid streams. The invention further provides a process for reducing the level of mercury or arsenic in fluid streams by contacting the fluid stream with used alumina, such as used Claus catalyst.
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Gonzalez Michael A.
Kennard Claude
Szlag David C.
Barry Chester T.
MAR Systems, LLC.
The United States as represented by the Administrator of the U.S
Wilmer Cutler Pickering Hale & Dorr LLP.
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