Method for continuous production of 0,0-dimethyl thiophosphoryl chloride

Method for continuous production of 0,0-dimethyl thiophosphoryl chloride

The invention relates to a continuous preparation method of O, O-dimethyl thiophosphoryl chloride, which comprises adding O-methyl thiophosphoryl chloride, methanol and alkali continuously into a combination reactor composed of serial multistage reactors, adding alkali into the reactor at each stage...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG FANGDENG, LUO HEAN, CONG XINGHONG, ZHANG BINBIN, AI QIUHONG, LIU XIAOPING, LIU PINGLE, LIU ZHIMING, WANG LIANGJIE
Format: Patent
Sprache:chi ; eng
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention relates to a continuous preparation method of O, O-dimethyl thiophosphoryl chloride, which comprises adding O-methyl thiophosphoryl chloride, methanol and alkali continuously into a combination reactor composed of serial multistage reactors, adding alkali into the reactor at each stage, using a hydraulic cyclone to separate the material continuously flown outside the reactor, using the oil phase as product, and feeding water phase into a settler to further separate residual O, O-dimethyl thiophosphoryl chloride, recovers methanol in the water phase, and removes waste water. The invention has high reaction yield and equipment utilization, high product quality, short reaction time and reduced production cost, which can continuously prepare O, O-dimethyl thiophosphoryl chloride.