Mercurex process

Mercurex 0.2-0.4 M Hg(NO,), 14 M HNO3 lO -lCt lO -lCt Pilot scale Mercurex process was designed for NFSWestValley but was never implemented... 

The Mercurex process employs mercuric nitrate-nitric acid in a packed column (Holladay, 1979). While dilute nitric acid has been investigated, improved organic iodine remove is obtained with concentrated acid (> 10 M). Mercuric iodine complexes are formed. One treatment method involves oxidation to the iodate, followed by filtration of the iodate. The mercuric iodate can be filtered off. DF s for the mercurex process are affected by aromatic vapors and may be 100 or less. The toxicity and cost of mercury are disadvantages as well as the lack of demonstrated conversion technology for the mercurex solution. 

H9(IO3)2 in Portland type I-II cement. The Hg(I0o)2 was produced by a process that uses HNO3 to oxidize Iodine in Mercurex solution. In addition to their test using recovered pure Hg(IO3)2 another test using 2.9 wt% Hg(IO3)2 and 24.8 wt%... 

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