Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2004-10-29
2008-03-11
Barry, Chester T. (Department: 1797)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S912000
Reexamination Certificate
active
07341667
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 of America as represented by the Administrator
Wilmer Cutler Pickering Hale and Dorr LLP
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