The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1981
Filed:
Feb. 14, 1980
Leon Mir, Newton, MA (US);
Joseph Zahka, Dracut, MA (US);
Abcor, Inc., Wilmington, MA (US);
Abstract
A process for removing volatile vapor solvents, particularly from paint-spray booths and paint dryers, and recovering such solvents, which process comprises: intimately contacting the solvent-laden air with a multiphase scrubbing media, particularly a water stream containing an oil-in-water emulsion or a surfactant or a powdered activated carbon, to capture and to dissolve the solvent vapor in the dispersed phase of the scrubbing media in a gas scrubber; removing the solvent-enriched scrubbing media and concentrating the solvent-enriched scrubbing media employing an ultrafiltration device; stripping the solvent from the concentrated solvent-enriched scrubbing media from the ultrafiltration device to remove and recover the solvent, while recycling the scrubbing media for further contact with fresh solvent-laden air; and recycling the water carrier as a permeate for reuse in contacting the solvent-laden air.