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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.:

US 12774266 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Jul. 09, 2021

Recovery method and recovery apparatus of nitrile-based monomer

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Sang Cheol Shin, Daejeon, KR;

Jun Seok Ko, Daejeon, KR;

Yong Heon Cho, Daejeon, KR;

Joon Ho Shin, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Fereydoun G Sajjadi

Assistant Examiner:

Anna Grace Kuckla

Int. Cl.
CPC ...
C07C 253/34 (2006.01); C07C 253/02 (2006.01);
U.S. Cl.
CPC ...
C07C 253/34 (2013.01); C07C 253/02 (2013.01);
Abstract

Disclosed is a recovery method of a nitrile-based monomer including: supplying a feed stream including a nitrile-based monomer, a nitrogen compound, and water to a first distillation tower to separate the stream into a lower discharge stream and an upper discharge stream; condensing the upper discharge stream of the first distillation tower and supplying the condensed stream to a decanter to separate the stream into a water layer and an organic layer; supplying an organic layer stream discharged from the decanter to a second distillation tower to separate the stream into a lower discharge stream and an upper discharge stream; and splitting a part of the upper discharge stream from the second distillation tower and refluxing the split stream to the second distillation tower.

Find Patent Forward Citations

Shin, Sang. (2026). Recovery method and recovery apparatus of nitrile-based monomer (U.S. Patent No. 12774266). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774266

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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