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:
Jul. 02, 2019
Filed:
Jan. 29, 2015
Honeywell International Inc., Morristown, NJ (US);
Gregory J. Gajda, Mt. Prospect, IL (US);
Mark G. Riley, Hinsdale, IL (US);
Venkatraman Mohan, Muskegon, MI (US);
Sandra M. Lorenz, Grand Haven, MI (US);
Alan P. Cohen, Palatine, IL (US);
HONEYWELL INTERNATIONAL INC., Morris Plains, NJ (US);
Abstract
Methods for purifying an acetonitrile waste stream are provided. An exemplary method for purifying an acetonitrile waste stream includes generating an acetonitrile waste stream during oligonucleotide synthesis and fractionating the acetonitrile waste stream to produce a single overhead fraction. The method includes condensing the single overhead fraction to produce a condensed single overhead fraction and contacting the condensed single overhead fraction with an adsorbent material to produce an acetonitrile stream that comprises an amount of an impurity that is reduced relative to the acetonitrile waste stream.