Can you discuss the extraction process of industrial citric acid?
Thread Content
The traditional industrial extraction process is the calcium salt method. Recently I heard that citric acid can be extracted by ion chromatography. I don’t know if this is the case. Because I think general ion chromatography is difficult to industrialize.
Known in the industry as: The main differences between the two production methods, the calcium salt method and the calcium salt method, are in terms of cost and environmental protection. If the calcium sulfate formed by the calcium salt method is not effectively used, it will form solid waste, and some places restrict this method. , which is abroad. The suction exchange method uses resin exchange after salt formation. So far, the cost and quality of this method in China are not very satisfactory. The only advantage is that there is no solid waste.
Engaged in citric acid production for many years. The most mature process is still the calcium salt process. Other absorption methods and chromatographic separation methods have no economic value.