Succinic acid
Succinic acid
110-15-6
disodium succinate
Phthalocyanine pigment
Compound dyes
Compound green
Composite blue
The Example of manufacturing succinic acid(cas:110-15-6) and ammonium succinate solutions
Release time:2016/8/16 17:10:13


Various purification methods are applicable to the magnesium salt, which results in a favorable form of this salt during the fermentation process. Furthermore, and in view of the methods disclosed in JP2001-514900A and JP2004-196768A which do not generate salt by-products, a method in which the salt is substituted was proposed to convert the ammonium salt into a more favorable form (JP2005-295998A). The magnesium compound produced by substituting the salt is reused as a neutralizing agent in the fermentation process. Magnesium succinate which is produced in the fermentation process is dissolved in the culture solution, and usually does not precipitate as crystals. Therefore, the salt substitution step is carried out by adding ammonium carbonate or the like to the culture solution. As a result, the mixture in the culture solution, other than magnesium succinate, is carried into the ammonium succinate solution which is the starting material for the purification process. Therefore, an additional step is necessary to remove the complicated mixture before or after the salt substitution step.


Example 1
The influence of the quantity of ammonium carbonate in the salt substitution step was examined. To 80 g calcium succinate monohydrate (Junsei Kagaku Co., Ltd., guaranteed grade), 188 g water was added to form a slurry solution with a 20% by weight succinic acid concentration. To this solution, varying quantities of ammonium carbonate were added. After reacting for 2 hours with stirring, ammonium succinate solutions were obtained by centrifugation to remove precipitates.
The analyzed results of the obtained ammonium salt solutions are shown in Table 3. It indicates that 97.7% of calcium was removed from the solution by adding equimolar ammonium carbonate with the calcium in the slurry, and the succinic acid(cas:110-15-6) was recovered as an ammonium salt solution. It was found that almost 100% of the calcium was removed by adding a slight excess of ammonium carbonate, i.e, 1.5 times the quantity of the calcium, and succinic acid(cas:110-15-6) was completely converted to ammonium salt.

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