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Production device of isophthaloyl dichloride/paraphthaloyl chloride of sanding raw material

A terephthaloyl chloride, production equipment technology, applied in the preparation of organic compounds, carboxylate preparation, chemical instruments and methods, etc., can solve the problem of affecting the reaction speed, long reaction time, large particles of terephthalic acid materials, etc. Problems, to achieve rapid and full response, improve production efficiency, fast response effect

Inactive Publication Date: 2020-04-14
SHANDONG KAISHENG NEW MATERIALS
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Problems solved by technology

[0003] The reaction time of the existing production equipment is long, and the tail gas of the reaction cannot be discharged from the system in time, which restricts the production rate of the reaction process; at the same time, the reaction raw material iso / terephthalic acid has relatively large particles, which affects the reaction speed

Method used

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  • Production device of isophthaloyl dichloride/paraphthaloyl chloride of sanding raw material
  • Production device of isophthaloyl dichloride/paraphthaloyl chloride of sanding raw material

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] Such as figure 1 Shown, the production unit of the inter / terephthaloyl dichloride of a kind of sand mill raw material of the present invention, comprises:

[0022] A mixing tank 3 for mixing thionyl chloride and solid m / terephthalic acid, said mixing tank 3 is provided with m / terephthalic acid entering pipeline 1 and thionyl chloride feeding pipeline 2;

[0023] A sand mill 4 for grinding solid meta / terephthalic acid, the sand mill 4 communicates with the mixing tank 3 through a pipeline;

[0024] A ground material storage tank 5 for temporarily storing the mixed solution of ground solid meta / terephthalic acid and thionyl chloride, the ground material storage tank 5 is connected to the discharge end of the sand mill 4 through a pipeline;

[0025] A reaction kettle 6 for reacting m / terephthalic acid and thionyl chloride, the reaction kettle 6 communicates with the g...

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Abstract

The invention relates to a production device of isophthaloyl dichloride / paraphthaloyl chloride of a sanding raw material, and belongs to the technical field of chemical industry product production equipment. The production device solves the problem of low production efficiency of isophthaloyl dichloride / paraphthaloyl chloride in the prior art, and comprises: a mixing tank used for mixing thionyl chloride and solid m-phthalic acid / terephthalic acid and provided with an m-phthalic acid / terephthalic acid inlet pipeline and a thionyl chloride feeding pipeline, a sand mill used for grinding solid m-phthalic acid / terephthalic acid and communicated with the mixing tank through a pipeline, and an after-grinding material storage tank used for temporarily storing a grinded solid m-phthalic acid / terephthalic acid and thionyl chloride mixed liquid and communicated with the material outlet end of the sand mill through a pipeline.

Description

technical field [0001] The invention relates to a production device of m / terephthaloyl chloride as a sanding raw material, belonging to the technical field of chemical product production equipment. Background technique [0002] Meta / terephthaloyl dichloride, also known as terephthaloyl dichloride, referred to as TPC or TCL, is an important fine chemical product, mainly used as polyparaphenylene terephthalamide (aramid 1414 or PPTA for short) Polymerized monomers of sulfonamide and sulfonamide, and also have certain applications in the synthesis of permeable membrane materials, polymer materials and pesticides. Due to its excellent properties, aramid fiber 1414 is widely used in a wide range of fields, and is a new material that is nationally focused and developed. As one of the important raw materials of aramid fiber 1414, terephthaloyl chloride is directly related to the product performance of downstream aramid fiber 1414. With the rapid development of domestic aramid fibe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/60C07C51/64C07C63/24C07C63/30
CPCC07C51/60C07C51/64C07C63/24C07C63/30
Inventor 刘嵩张泰铭张聪聪孙丰炜张良孙丰春
Owner SHANDONG KAISHENG NEW MATERIALS
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