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.

Date of Patent:
Jul. 10, 2018

Filed:

Dec. 14, 2016
Applicant:

Purac Biochem B.v., Gorinchem, NL;

Inventors:

André Banier De Haan, Best, NL;

Jan Van Breugel, Woudrichem, NL;

Paulus Loduvicus Johannes Van Der Weide, Breda, NL;

Peter Paul Jansen, Oss, NL;

José Maria Vidal Lancis, Vilassar de Mar, ES;

Agustín Cerdà Baró, Cerdanyola Valles, ES;

Assignee:

PURAC BIOCHEM B.V., Gorinchem, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/02 (2006.01); C01B 7/03 (2006.01); C01F 5/16 (2006.01); C01F 5/06 (2006.01); C07D 307/68 (2006.01); C07C 51/43 (2006.01); C01F 5/30 (2006.01);
U.S. Cl.
CPC ...
C07C 51/02 (2013.01); C01B 7/035 (2013.01); C01F 5/06 (2013.01); C01F 5/16 (2013.01); C01F 5/30 (2013.01); C07C 51/43 (2013.01); C07D 307/68 (2013.01);
Abstract

The invention provides a method for preparing a carboxylic acid, which method includes the steps of providing magnesium carboxylate, wherein the carboxylic acid corresponding with the carboxylate has a solubility in water at 20° C. of 80 g/100 g water or less; acidifying the magnesium carboxylate with HCl, thereby obtaining a solution comprising carboxylic acid and magnesium chloride (MgCl); optionally a concentration step, wherein the solution comprising carboxylic acid and MgClis concentrated; precipitating the carboxylic acid from the solution comprising the carboxylic acid and MgCl, thereby obtaining a carboxylic acid precipitate and a MgClsolution.


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