Process and equipment for preparing bromoethane

A technology of bromoethane and equipment is applied in the field of technology and equipment for preparing bromoethane, and can solve the problems of single mixing structure and inability to combine gas mixing structures and the like

Active Publication Date: 2021-09-14
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 t

Method used

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  • Process and equipment for preparing bromoethane
  • Process and equipment for preparing bromoethane
  • Process and equipment for preparing bromoethane

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example 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 ...

Example Embodiment

[0092] Example 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 kettl...

Example Embodiment

[0099] Example 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 kettl...

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Abstract

The invention provides a process and equipment for preparing bromoethane, relates to the technical field of chemical engineering, and solves the problems that the preheating range cannot be expanded and intermittent feeding cannot be achieved while mixing is conducted through structural improvement, mixing of liquid in a box body cannot be achieved synchronously by promoting a mixing structure in a plurality of synchronous modes through structural improvement, and a gas mixing structure cannot be organically combined with a preheating structure. The equipment comprises a box body, which is of a rectangular box-shaped structure. According to the invention, through the arrangement of a heating structure, a driving structure and an auxiliary structure, a connecting pipe is of a Z-shaped tubular structure, and when a seat body moves downwards, the seat body is in impact contact with the outer wall of the connecting pipe, so that vibration of the connecting pipe and a spray pipe can be realized, and sundries adhered to the spray pipe can be shaken off to keep a spray hole unblocked.

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] Bromoethane is a colorless oily liquid. It has an ether-like smell and burning taste. Exposure to air or light 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. Bromoethane is an important raw material for organic synthesis. In agriculture, it is used as a fumigation insecticide for grain storage, warehouses and houses. [0003] For example, the application number: CN201410033242.0, a production process for the synthesis of bromoethane, which relates to the field of chemical technology, is obtained by reacting sulfur, water, bromine, ethanol and sulfuric acid and then rectifying through a rectification tower. The benef...

Claims

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Application Information

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IPC IPC(8): B01F15/02B01F15/06B01F15/00B01F7/04B01D3/14B01D3/32B01D53/00C07C17/16C07C17/383
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
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