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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 12227467 B1

PDFFull Text
Date of Patent:
Feb. 18, 2025

Filed:

Sep. 19, 2019

Process for bio-1,3-butanediol purification from a fermentation broth

Applicant:

Versalis S.p.a., San Donato Milanese, IT;

Inventors:

Mario Baldassarre, Novara, IT;

Alberto Cesana, Novara, IT;

Fabrizio Bordes, Novara, IT;

Assignee:

Versalis S.P.A., San Donato Milanese, IT;

Attorney:

Ruggiero McAllister & McMahon LLC

Primary Examiner:

Medhanit W Bahta

Int. Cl.
CPC ...
C07C 29/76 (2006.01); B01D 15/36 (2006.01); B01D 21/26 (2006.01); B01D 61/02 (2006.01); B01D 61/14 (2006.01); B01D 61/58 (2006.01); B01D 69/02 (2006.01); B01J 23/10 (2006.01); C07C 1/24 (2006.01); C07C 29/80 (2006.01); C07C 31/20 (2006.01); C08F 36/06 (2006.01); C12P 7/18 (2006.01);
U.S. Cl.
CPC ...
C07C 29/76 (2013.01); B01D 15/362 (2013.01); B01D 15/363 (2013.01); B01D 21/262 (2013.01); B01D 61/027 (2013.01); B01D 61/147 (2013.01); B01D 61/58 (2013.01); B01D 69/02 (2013.01); B01J 23/10 (2013.01); C07C 1/24 (2013.01); C07C 29/80 (2013.01); C08F 36/06 (2013.01); C12P 7/18 (2013.01); B01D 2325/02834 (2022.08); B01D 2325/34 (2013.01);
Abstract

A process for bio-1,3-butanediol purification from a fermentation broth includes the steps of: (a) subjecting the fermentation broth to separation, (b) subjecting the product obtained in step (a) to treatment with ion-exchange resins, (c) subjecting the product obtained in step (b) to a first evaporation, (d) subjecting the product obtained in step (c) to a second evaporation; and (e) subjecting the product obtained in step (d) to a third evaporation, obtaining purified bio-1,3-butanediol. The purified bio-1,3-butanediol can be used to produce bio-1,3-butadiene. Bio-1,3-butadiene can be used as a monomer or as an intermediate to produce elastomers and (co)polymers.

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