Process for the purification of fluoromethyl hexafluoroisopropyl ether
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United States of America Patent
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Mar 28, 2006
Grant Date -
Nov 24, 2005
app pub date -
Dec 21, 2001
filing date -
Dec 21, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the purification of fluoromethyl hexafluoroisopropyl ether involving contacting a crude composition containing impure fluoromethyl hexafluoroisopropyl ether with an adsorbent having pores with a range of pore sizes whereby the difference between the smallest and largest pore size is at least 1 nm. The adsorbent suitably is a form of silica, alumina, or carbon.
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