Recovery from those magnesium salt of the carboxylic acid by the precipitation useful for fermentation broth processing using hydrochloric acid

Title:

Recovery from those magnesium salt of the carboxylic acid by the precipitation useful for fermentation broth processing using hydrochloric acid

Document Type and Number:

Japanese Patent JP6275039

Kind Code:

B2

Abstract:

The invention provides a method for preparing a carboxylic acid, which method comprises the steps of providing magnesium carboxylate, wherein the carboxylic acid corresponding with the carboxylate is selected from the group consisting of 2,5-furandicarboxylic acid, fumaric acid, adipic acid, itaconic acid, citric acid, glutaric acid, maleic acid, malonic acid, oxalic acid and fatty acids having more than 10 carbon atoms; - acidifying the magnesium carboxylate with hydrogen chloride (HCl), thereby obtaining a solution comprising carboxylic acid and magnesium chloride (MgCl2); - optionally a concentration step, wherein the solution comprising carboxylic acid and MgCl2 is concentrated; - precipitating the carboxylic acid from the solution comprising the carboxylic acid and MgCl2, thereby obtaining a carboxylic acid precipitate and a MgCl2 solution. The inventors found that the addition of HC1 to a magnesium salt of the carboxylic acid and subsequent precipitation of the carboxylic acid from the solution leads to a very efficient separation of the carboxylic acid from a magnesium carboxylate solution.

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Inventors:

De Haan, Andre Banniere
Van Brugel, Jan
Van der Weide, Paulus Rodovicus Johannes
Janssen, Peter Paul
Vidal Ransis, Jose Maria
Selda Baro Agustin

Application Number:

JP2014525960A

Publication Date:

February 07, 2018

Filing Date:

August 16, 2012

Export Citation:

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Assignee:

Purak Biochem B. Buoy.

International Classes:

C07C51/47; C07C55/14; C07C57/13; C07C57/15; C07C59/265; C07D307/68; C12P7/44; C12P7/46; C12P7/48; C12P17/04

Domestic Patent References:

JP2014531408A
JP2014524254A
JP2014514263A

Foreign References:

US20100323416
WO2000017378A1
KR1020100122773A
CN101748161A
WO2001030699A1
GB793700B
WO2012119064A1

Attorney, Agent or Firm:

Mitsuo Matsui
Hiroshi Murakami

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