Thiacrown polymers for removal of mercury from waste streams

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874504

Baumann, Theodore F ^[1]; Reynolds, John G ^[2]; Fox, Glenn A ^[3]

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1. Tracy, CA
2. San Ramon, CA
3. Livermore, CA

Thiacrown polymers immobilized to a polystyrene-divinylbenzene matrix react with Hg.sup.2+ under a variety of conditions to efficiently and selectively remove Hg.sup.2+ ions from acidic aqueous solutions, even in the presence of a variety of other metal ions. The mercury can be recovered and the polymer regenerated. This mercury removal method has utility in the treatment of industrial wastewater, where a selective and cost-effective removal process is required.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: The Regents of the University of California (Oakland, CA)
• Patent Number(s): US 6402960
• OSTI ID: 874504
• Country of Publication: United States
• Language: English

Related Subjects

thiacrown
polymers
removal
mercury
waste
streams
immobilized
polystyrene-divinylbenzene
matrix
react
hgsup2
variety
conditions
efficiently
selectively
remove
acidic
aqueous
solutions
presence
metal
recovered
polymer
regenerated
method
utility
treatment
industrial
wastewater
selective
cost-effective
process
required
aqueous solution
waste stream
acidic aqueous
selectively remove
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