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Phosphorus trichloride production process

A phosphorus trichloride and production process technology, applied in the field of phosphorus trichloride production process, can solve the problems of poor controllability, low safety, violent reaction, etc., and achieve the effect of easy control, high safety factor and simple production process

Pending Publication Date: 2020-07-07
江苏灵创工程设计有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a production process of phosphorus trichloride to solve the technical problems of violent reaction, poor controllability and low safety in the prior art for the industrial production of phosphorus trichloride

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  • Phosphorus trichloride production process

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Embodiment Construction

[0014] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0015] see figure 1 , preferred embodiment one of the present invention provides a kind of phosphorus trichloride production process, comprises the following steps:

[0016] S1. Preparation of phosphorus trichloride steam: first add phosphorus trichloride mother liquor in advance in the chlorination kettle; melt yellow phosphorus in a phosphorus melting tank to obtain liquid yellow phosphorus, and store the liquid yellow phosphorus in a yellow phosphorus metering tank ...

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Abstract

The invention discloses a phosphorus trichloride production process. The process comprises the following steps: S1, preparing phosphorus trichloride steam; S2, preparing phosphorus trichloride; S3, tailing treatment; with phosphorus trichloride mother liquor as a solvent, dissolving yellow phosphorus in the phosphorus trichloride mother liquor, and feeding chlorine gas for reaction to prepare phosphorus trichloride. The production process is simple, easy to control and high in safety coefficient.

Description

technical field [0001] The invention relates to the technical field of phosphorus trichloride production, in particular to a production process of phosphorus trichloride. Background technique [0002] Phosphorus oxychloride (molecular formula: POCl3), also known as phosphorus oxychloride, phosphorus oxychloride, phosphorus oxychloride, is a kind of industrial chemical raw material, is a colorless transparent liquid; At present, the industrial production of phosphorus trichloride is mainly Chlorine gas and liquid yellow phosphorus are produced by direct reaction, but this method has violent reaction, poor controllability and low safety. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a production process of phosphorus trichloride, so as to solve the technical problems of severe reaction, poor controllability and low safety in the industrial production method of phosphorus trichloride in the prior art. [0004] To...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/10
CPCC01B25/10
Inventor 张华虞江施凯峰
Owner 江苏灵创工程设计有限公司