Methylated Liquor Treatment Process In Caffeine Production
INTERNATIONAL CONFERENCE ON ENERGY ENGINEERING AND ENVIRONMENTAL PROTECTION (EEEP2017)(2018)
Abstract
The caffeine production process produces a large amount of sodium methyl sulphate in the methylated mother liquor. In order to recycle this part of ingredient, we use the mother liquid of Shijiazhuang Xin Nuowei Pharmaceutical Co., Ltd. as the object of study, the use of "nanofiltration (NF) - Dish Type Reverse Osmosis (DTRO) "combination of membrane technology for desalination and concentration. The experimental results show that the concentration of sodium sulfate in the nanofiltration solution is 0.37 g . L -1, the rejection rate is 98%, and the concentration of sodium methyl sulfate in DTRO concentrated solution is 453.80 g . L -1, which meets the requirements of the enterprise.
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Key words
methylated liquor treatment process,caffeine production
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