Phenylacetic acid continuous production process

The invention discloses a phenylacetic acid continuous production process, and relates to the technical field of phenylacetic acid production. The process comprises the following specific steps that a phenylacetate solution and a dilute acid solution are mixed and then continuously injected into an...

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Hauptverfasser: YIN GUOHUA, ZHANG GAIFEI, YANG HONGMEI, XIE MEIXIAN, LI YONG'AN, LANG BAO'AN, SHEN YINSHAN, ZHANG YU, WANG XUESONG, ZHANG CHENLIANG, GAO YONGCHAO, YIN JUNLI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a phenylacetic acid continuous production process, and relates to the technical field of phenylacetic acid production. The process comprises the following specific steps that a phenylacetate solution and a dilute acid solution are mixed and then continuously injected into an oil-water separator, and separated liquid phenylacetic acid is extracted continuously and put into a crystallizer; meanwhile, water is added into the crystallizer, cooling crystallization is conducted, a solid-liquid mixture continuous to be extracted from the crystallizer for centrifugation, and then a phenylacetic acid crystal is obtained. According to the phenylacetic acid continuous production process, problems existing in the intermittent production process at present are solved. The phenylacetic acid continuous production process adopts few devices, is simple in process route, reduces the cost of labor, equipment, energy and the like, improves the work environment, adopts automation control conveniently, well