A continuous production system for phosphorus oxychloride

A technology for connecting and producing phosphorus oxychloride, applied in the direction of phosphorus halide/oxyhalide and the like, can solve the problems of high unit consumption of phosphorus oxychloride, unfavorable long-term use, waste of manpower, etc., and achieves simple equipment composition and less labor. , the effect of reducing unit consumption

Inactive Publication Date: 2011-12-14
JIANGSU DAMING TECH
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Problems solved by technology

[0003] The main disadvantage of this process is that the unit consumption of phosphorus trichloride is high, the output is low, and it wastes manpower
At the same time, the oxidation reaction is a dangerous process, which is not conducive to long-term adoption by enterprises. It is imperative to change the oxidation reaction to continuous and adopt automatic control technology.

Method used

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  • A continuous production system for phosphorus oxychloride
  • A continuous production system for phosphorus oxychloride

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Embodiment 1

[0015] A continuous production system for phosphorus oxychloride, the system includes a phosphorus trichloride head tank 1, a head reactor 2, an oxygen tank 3, a first-stage reactor 4, a second-stage reactor 5, a third-stage reactor 6, a cooling device 7, finished product tank 8 and finished product pump 9, the outlet of phosphorus trichloride elevated tank 1 is connected with the phosphorus trichloride inlet of elevated reactor 2 and the phosphorus trichloride inlet of primary reactor 4 respectively, one The mixed material inlet on the top of the first-stage reactor 4 is connected with the discharge port of the elevated reactor 2, the discharge port of the first-stage reactor 4 is connected with the feed port of the secondary reactor 5, and the discharge port of the secondary reactor 5 is connected with the feed port of the secondary reactor 5. The 6 feeding ports of the three-stage reactor link to each other, the discharge port of the three-stage reactor 6 links to each other...

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Abstract

The invention which belongs to the field of chemical equipment discloses a continuous production system of phosphorous oxychloride. The continuous production system of phosphorous oxychloride comprises an elevated tank of phosphorus trichloride, an elevated reaction vessel, a first order reaction vessel, a second order reaction vessel, a third order reaction vessel, an oxygen tank, a cooler, a finished product pot, and a finished product pump. The continuous production system of phosphorous oxychloride has the advantages of simple equipment composition and short flow, the output can be increased by about one time, the unit consumption is reduced by 4% than the unit consumption of intermittent production systems, the system of the invention needs less man power, can be controlled by a DCS,and needs only two men to operate.

Description

technical field [0001] The invention belongs to the field of chemical equipment and relates to a continuous production system of phosphorus oxychloride. Background technique [0002] The production methods of industrial phosphorus oxychloride mainly include chlorination hydrolysis, oxygen oxidation of phosphorus trichloride, co-production of phosphorus oxychloride with thionyl chloride, etc. After the 1990s, the oxygen oxidation method of phosphorus trichloride gradually became the mainstream of industrial phosphorus oxychloride production. At present, most manufacturers of phosphorus oxychloride use intermittent production. This production process is mainly to put the measured phosphorus trichloride into the reaction kettle, feed oxygen, control the reaction temperature, and take samples for analysis after the reaction is completely completed. Qualified finished products. [0003] The main disadvantage of this process is that the unit consumption of phosphorus trichloride...

Claims

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Application Information

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IPC IPC(8): C01B25/10
Inventor 潘小明李执阶潘新明廖志年
Owner JIANGSU DAMING TECH
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