Se
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United States of America Patent
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Jan 29, 2013
Grant Date -
Dec 20, 2012
app pub date -
May 27, 2011
filing date -
May 27, 2011
priority date (Note) -
Expired
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Abstract
Methods of purifying H2Se by removing H2S and/or H2O are disclosed. The amount of H2S in the H2Se-containing gas is reduced below 10 ppmv by passing the H2Se-containing gas through an AW-500 molecular sieve. H2S and H2O are removed by passing H2Se through a 4 A molecular sieve and subsequently passing H2Se through an AW-500 molecular sieve.
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