Phosphorus oxychloride condensation recovery device

Abstract

The invention belongs to the technical field of chemical synthesis equipment, and specifically, relates to a phosphorus oxychloride condensation recovery device. The phosphorus oxychloride condensation recovery device comprises a condensation tank; a condensation pipe is arranged in the condensation tank; a phosphorus oxychloride inlet end of the condensation pipe penetrates through the top of theinner wall of one side of the condensation tank and extends outwards; the phosphorus oxychloride outlet end of the condensation pipe penetrates through the bottom of the inner wall of the other sideof the condensation tank and extends outwards; a first control valve is mounted at the extending end of the condensation pipe; a cooling medium is arranged in the condensation tank; one side of the condensation tank is fixedly communicated with a cooling medium inlet and a cooling medium outlet; the bottom of the condensation tank is fixedly communicated with a circulating pipe; the other end of the circulation pipe penetrates through the top of the condensing tank and extends inward, and the extended end of the circulation pipe is fixedly communicated with a spray tray. According to the phosphorus oxychloride condensation recovery device, through the arrangement of the rotary condensation pipe, a cooling medium and a cooling fan, phosphorus oxychloride gas in the condensation pipe can befully cooled, and the condensation effect is effectively guaranteed.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis equipment, in particular to a phosphorus oxychloride condensation recovery device. Background technique [0002] Phosphorus oxychloride, commonly known as phosphorus oxychloride, is mainly used in the synthesis of organophosphorus pesticides to synthesize another type of phosphorus-containing intermediate - phosphorus oxychloride or phosphorus oxydichloride, such as the synthesis of diethyl phosphorus oxychloride, and then the synthesis of pesticide ethyl sulfide Cyclophosphine, or the synthesis of ethylphosphoryl dichloride, and then the synthesis of pesticides such as methamidophos, etc., in other respects, phosphorus oxychloride can be used as a chlorination agent, catalyst, plastic plasticizer, dye intermediate, etc., and is also used in pharmaceuticals Industrial and organic synthesis, an industrial chemical raw material, is a colorless and transparent fuming liquid, a colorless an...

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Problems solved by technology

[0003] The existing phosphorus oxychloride condensation recovery device has low recovery efficiency. When condensation is required, it will enter the next process if it cannot be condensed sufficiently, and the production effect cannot be guaranteed.

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