B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/360
B01D 47/06 (2006.01) B01D 53/14 (2006.01)
Patent
CA 1192382
ABSTRACT OF THE INVENTION A method for using an aqueous hydrotrope solution to remove at least a portion of a solvent from a stream of air containing the solvent, wherein the method comprises introducing the stream of air containing the solvent into a scrubber containing an effective amount of the aqueous hydro- trope solution, and contacting of the stream of air containing the solvent with the aqueous hydrotrope solution thereby producing a first scrubber product stream containing scrubbed air and a second scrubber product stream containing the aqueous hydrotrope solution and the solvent. The term "hydrotrope" refers to a substance which has the property of increasing the aqueous solubility of a variety of otherwise only slightly soluble organic compounds.
428858
Cosper David R.
Mckay Gretchen L.
Nalco Chemical Company
Smart & Biggar
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