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A kind of technology and equipment for preparing bromoethane

A technology for bromoethane and equipment, which is applied in the field of technology and equipment for preparing bromoethane, can solve the problems of single mixing structure and inability to combine gas mixing structures, and achieves the effects of improving heating efficiency and smooth spray holes

Active Publication Date: 2022-07-05
安徽苏乐医药材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides a process and equipment for preparing ethyl bromide to solve the existing problem that although the existing devices can realize the preheating and mixing of liquids, they cannot be mixed through structural improvements. Expand the preheating range and intermittent feeding at the same time; moreover, the mixing structure of the existing device is single, and it is impossible to achieve multiple synchronous methods through structural improvement to promote the mixing of the structure synchronously to achieve the mixing of the liquid in the box, and the gas The problem that the mixing structure cannot be organically combined with the preheating structure

Method used

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  • A kind of technology and equipment for preparing bromoethane
  • A kind of technology and equipment for preparing bromoethane
  • A kind of technology and equipment for preparing bromoethane

Examples

Experimental program
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Effect test

Embodiment 1

[0058] as attached figure 1 to the attached Figure 8 shown:

[0059] The present invention provides a process and equipment for preparing bromoethane, comprising a box body 1;

[0060] Box 1 is a rectangular box-like structure;

[0061] Heating structure 2, the heating structure 2 is installed in the box body 1;

[0062] The driving structure 3 is installed on the box body 1 .

[0063] refer to as figure 2 , Box 1 includes:

[0064] Cover plate 102, the cover plate 102 is a rectangular plate-like structure, and the cover plate 102 is fixedly connected to the box body 1 by bolts;

[0065] The protective seat 101, the protective seat 101 is welded on the box body 1, and the protective seat 101 is a back-shaped structure, and the inner wall of the protective seat 101 is in contact with the front, rear, left and right end surfaces of the cover plate 102, so that the cover can be improved. The sealing performance between the plate 102 and the box body 1 .

[0066] refer t...

Embodiment 2

[0093] A process for preparing bromoethane, comprising the following steps:

[0094] 01. Feeding: Pump ethanol and hydrobromic acid from the storage tank area into the closed intermediate tank of the workshop, and meter it into the box 1;

[0095] 02. Reaction and primary rectification: pump quantitative 95% ethanol and quantitative 40% hydrobromic acid into box 1, stir for 0.5 hours, pump into preheater, preheat to the set temperature, and then enter into reactive distillation The tower reacts. The reactive rectification tower is heated to 40 ℃ to carry out a rectification, the temperature of the tower still is 60 degrees, the temperature of the top of the tower is 40 degrees, and the reflux temperature is 15 degrees. The excess hydrobromic acid solution is pumped into the acid recovery tower for distillation and recovery of hydrobromic acid, and the distillation waste liquid of the acid recovery tower is pumped into the waste liquid neutralization kettle.

[0096] 03. Cond...

Embodiment 3

[0100] A process for preparing bromoethane, comprising the following steps:

[0101] 01. Feeding: Pump ethanol and hydrobromic acid from the storage tank area into the closed intermediate tank of the workshop, and meter it into the box 1;

[0102] 02. Reaction and primary rectification: pump quantitative 95% ethanol and quantitative 40% hydrobromic acid into box 1, stir for 0.5 hours, pump into preheater, preheat to the set temperature, and then enter into reactive distillation The tower reacts. The reactive rectification tower is heated to 40 ℃ to carry out a rectification, the temperature of the tower still is 70 degrees, the temperature of the top of the tower is 45 degrees, and the reflux temperature is 15 degrees. The excess hydrobromic acid solution is pumped into the acid recovery tower for distillation and recovery of hydrobromic acid, and the distillation waste liquid of the acid recovery tower is pumped into the waste liquid neutralization kettle.

[0103]03. Conde...

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Abstract

The invention provides a process and equipment for preparing ethyl bromide, relates to the technical field of chemical industry, and solves the problem that the preheating range cannot be expanded while mixing and intermittent feeding cannot be achieved through structural improvement; The promoting mixing structure of multiple synchronization methods realizes the mixing of liquid in the box synchronously, and the gas mixing structure cannot be organically combined with the preheating structure. A process and equipment for preparing bromoethane, comprising a box body; the box body is a rectangular box-like structure. Through the setting of the heating structure, the driving structure and the auxiliary structure, firstly, because the connecting pipe is a Z-shaped tubular structure, and when the seat body moves downward, it is in collision and contact with the outer wall of the connecting pipe, so that the vibration of the connecting pipe and the nozzle can be realized, In this way, the debris adhering to the nozzle can be shaken off to keep the nozzle holes unobstructed.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and more specifically relates to a process and equipment for preparing bromoethane. Background technique [0002] Ethyl bromide is a colorless oily liquid. Has an ether-like odor and burning odor. When exposed to air or exposed to light, it gradually turns yellow. volatile. It is miscible with ethanol, ether, chloroform and most organic solvents. The relative density is 1.4612, the freezing point is -119°C, and the boiling point is 38.4°C. Ethyl bromide is an important raw material for organic synthesis. In agriculture, it is used as a fumigant pesticide for storage of grains, warehouses and houses. [0003] For example, the application number: CN201410033242.0, a production process for bromoethane synthesis, relates to the technical field of chemical industry, and is obtained by reacting sulfur, water, bromine, ethanol and sulfuric acid and then rectifying through a rectifying tow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F35/71B01F35/75B01F35/93B01F35/32B01F27/70B01D3/14B01D3/32B01D53/00C07C17/16C07C17/383
CPCB01D3/143B01D3/32B01D53/00C07C17/16C07C17/383C07C19/075Y02P20/10
Inventor 魏华兴钦瑞良冯远
Owner 安徽苏乐医药材料有限公司