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Production method and production device for producing polychlorinated aromatic compounds by chlorination reaction of aromatic compounds

An aromatic compound, chlorination reaction technology, applied in chemical methods, chemical/physical/physical chemistry stationary reactors, organic chemical methods for reacting liquids and gaseous media, etc. There are many problems, such as many reactions and lower product yields, to achieve the effects of improving product yields, reducing the number of equipment, and reducing the incidence of accidents.

Active Publication Date: 2021-09-17
河北鸿新源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Compared with the first production method, the number of production equipment in the above-mentioned second production method will be reduced, but this production method also has side reactions due to the long chlorination time of the aromatic compounds in the primary and secondary tail gas absorption reactors. More, lower product yield and other deficiencies

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  • Production method and production device for producing polychlorinated aromatic compounds by chlorination reaction of aromatic compounds
  • Production method and production device for producing polychlorinated aromatic compounds by chlorination reaction of aromatic compounds
  • Production method and production device for producing polychlorinated aromatic compounds by chlorination reaction of aromatic compounds

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Embodiment 1

[0058] This embodiment relates to a production method for generating polychlorinated aromatic compounds through the chlorination reaction of aromatic compounds, the production method is used to generate polychlorinated aromatic compounds through the chlorination reaction of aromatic compounds and chlorine gas, and the production method The chlorination reaction kettle and the tail gas absorption reaction kettle are mainly used. Among them, the chlorination reaction kettle is used as the main body of production, and the chlorination reaction of aromatic compound raw materials and chlorine gas is carried out in it to generate the target product, that is, polychlorinated aromatic compounds. The tail gas absorption reactor is used to absorb the chlorine gas in the tail gas produced by the chlorination reaction in the chlorination reactor, and the absorption is also carried out by the aromatic compound raw material in the tail gas absorption reactor, and the residual chlorine gas is ...

Embodiment 2

[0073] This embodiment relates to a production device for generating polychlorinated aromatic compounds through the chlorination reaction of aromatic compounds, the production device is used to generate polychlorinated aromatic compounds through the chlorination reaction of aromatic compounds and chlorine gas, and the production device It is mainly carried out by chlorination reaction kettle and tail gas absorption reaction kettle. Among them, the chlorination reaction kettle is used as the main body of production, and the chlorination reaction of aromatic compound raw materials and chlorine gas is carried out in it to generate the target product, that is, polychlorinated aromatic compounds. The tail gas absorption reactor is used to absorb the chlorine gas in the tail gas produced by the chlorination reaction in the chlorination reactor, and the absorption is also carried out by the aromatic compound raw material in the tail gas absorption reactor, and the residual chlorine ga...

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Abstract

The present invention provides a kind of production method and production device that generate polychlorinated aromatic compound with the chlorination reaction of aromatic compound, the production method of the present invention comprises that the quantity of setting chlorination reactor is N (2≤N≤6), The number of tail gas absorption reactors is 2, and the tail gas of each chlorination reactor is allowed to enter one of the tail gas absorption reactors during production, and the other tail gas absorption reactor is on standby. The initial period controls each chlorination reactor The amount of chlorine gas introduced in the interior makes the degree of chlorination in each chlorination reactor be L 1 % to L N %, and after the chlorination of one chlorination reactor is completed, the tail gas absorption reactor in use is poured into the chlorination reactor that has been chlorinated, and the chlorination degree in each chlorination reactor is still L 1 % to L N %, and take turns to replace and dump the tail gas absorption reactor for continuous chlorination. The production method of the polychlorinated aromatic compound of the present invention can realize the production of the polychlorinated aromatic compound, and can avoid the deficiency of the existing production mode.

Description

technical field [0001] The invention relates to the technical field of organic synthesis, in particular to a production method for producing polychlorinated aromatic compounds through the chlorination reaction of aromatic compounds. In addition, the present invention also relates to a production device for producing polychlorinated aromatic compounds through the chlorination reaction of aromatic compounds. Background technique [0002] The reaction of aromatic compounds and chlorine gas (chlorination reaction) to generate polychlorinated aromatic compounds, that is, chlorination on the aromatic ring is a very widely used reaction. Trichloroaromatics... up to the target product (polychlorinated aromatics). The chlorination reaction process of aromatic compounds in the reactor will produce residual chlorine and hydrogen chloride gas, these residual chlorine and hydrogen chloride gases generally pass through the tail gas absorption reactor, so that the residual chlorine and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C17/12B01J10/00B01J19/18B01J19/00C07C25/00C07B39/00
CPCB01J10/00B01J19/0013B01J19/18B01J19/1856B01J19/1862B01J2219/00081B01J2219/00085C07B39/00C07C17/12C07C25/00
Inventor 谢昊
Owner 河北鸿新源化工有限公司