- Sodium pentachlorophenol liquid product preparation method
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The present invention discloses a sodium pentachlorophenol liquid product preparation method, which comprises that phenol and chlorine gas are subjected to a chlorine hydrogen substitution reaction to generate a pentachlorophenol melting liquid; the pentachlorophenol melting liquid is subjected to water breaking to form multi-gap sand-like pentachlorophenol solid; the pentachlorophenol solid and a sodium hydroxide solution are subjected to a neutralization reaction to generate a sodium pentachlorophenol crude solution; and the sodium pentachlorophenol crude solution is subjected to concentration regulation with water, and filling is performed to form the sodium pentachlorophenol liquid product. According to the present invention, the three processes such as evaporation, crystallization and centrifugation dehydration are eliminated, the electricity consumption, the natural gas consumption and the water consumption are saved, no irritating gas overflows during the operation process, the process is safe and controllable, the automation can be completely achieved, the production efficiency is significantly improved, and the production cost is significantly reduced.
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Paragraph 0018-0020
(2017/01/12)
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