Phosphate fluorosurfactants for use in carbon dioxide
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United States of America Patent
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Feb 3, 2004
Grant Date -
Aug 8, 2002
app pub date -
Sep 25, 2001
filing date -
Sep 26, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of removing water from a composition of matter comprises contacting a first composition of matter comprising water with a second composition of matter comprising: (1) at least one surfactant comprising at least one phosphate group and (2) a solvent comprising carbon dioxide, wherein at least a portion of the surfactant is soluble in the solvent, such that the at least one surfactant removes at least a portion of the water from the first composition
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