Process for removing water and apparatus for removing water
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United States of America Patent
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May 5, 2009
Grant Date -
Nov 9, 2006
app pub date -
Jul 5, 2006
filing date -
Feb 24, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
To provide a process for removing water, capable of maintaining good water removal performance for a long time continuously and constantly. A process for removing water, which comprises a dipping step of dipping an article having water attached on its surface, in a solvent composition comprising at least one member selected from a hydrochlorofluorocarbon, a hydrofluorocarbon and a hydrofluoroether, and an alcohol, as the essential components, to carry out removal of water, a specific gravity separation step of separating water from the solvent composition containing the water removed from the article, by a specific gravity separation method, and a filtration step of filtering the solvent composition having the water removed in the specific gravity separation step, through a coalescer type filter to further remove water remaining in the solvent composition.
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