Title:
CARBOXYLATE ACIDIFICATION
Document Type and Number:
Japanese Patent JP2017052772
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of producing carboxylic acid with higher efficiency by the acidification of a liquid feed containing a carboxylate salt, which shows advantageous recycling efficiency of magnesium chloride.SOLUTION: A method for preparing a carboxylic acid by acidification of a liquid feed comprising a carboxylate salt comprises the steps of: providing a liquid feed comprising magnesium carboxylate, and a gas feed comprising gaseous hydrogen chloride; and acidifying the carboxylate to carboxylic acid by bringing the liquid feed into contact with the gas feed, thereby forming a liquid effluent comprising carboxylic acid and magnesium chloride, wherein the gas feed comprising gaseous hydrogen chloride is derived from a thermal decomposition step, an aqueous liquid comprising magnesium chloride is subjected to a temperature of at least 300°C, thereby decomposing magnesium chloride into magnesium oxide and hydrogen chloride, thus obtaining a solid comprising magnesium oxide and a gas comprising gaseous hydrogen chloride.SELECTED DRAWING: Figure 2
Inventors:
AGUSTIN CERD BARO
JAN VAN BREUGEL
WILLEM JACOB GROOT
ANDRE BANIER DE HAAN
PETER PAUL JANSEN
JAN VAN BREUGEL
WILLEM JACOB GROOT
ANDRE BANIER DE HAAN
PETER PAUL JANSEN
Application Number:
JP2016211955A
Publication Date:
March 16, 2017
Filing Date:
October 28, 2016
Export Citation:
Assignee:
PURAC BIOCHEM BV
International Classes:
C07C51/02; C07C55/10; C07C59/08; C12P7/40; C12P7/62
Domestic Patent References:
| JPS58177986A | 1983-10-18 | |||
| JPH1053556A | 1998-02-24 | |||
| JPS58177986A | 1983-10-18 | |||
| JPH1053556A | 1998-02-24 |
Foreign References:
| WO2000017378A2 | 2000-03-30 | |||
| CN101748161A | 2010-06-23 | |||
| US4137258A | 1979-01-30 | |||
| WO2000017378A2 | 2000-03-30 | |||
| CN101748161A | 2010-06-23 | |||
| US4137258A | 1979-01-30 |
Attorney, Agent or Firm:
Mitsuo Matsui
Hiroshi Murakami
Hiroshi Murakami
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