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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 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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  • 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

Embodiment 1

[0058] as attached figure 1 to attach Figure 8 Shown:

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

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

[0061] The 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] Reference as figure 2 , box 1 includes:

[0064] The cover plate 102, the cover plate 102 is a rectangular plate 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 end face, the rear end face, the left end face and the right end face of the cover plate 102, so that the cover can be improved. The sealing performance between the plate 102 and t...

Embodiment 2

[0093] A kind of technique for preparing bromoethane, comprises 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 pump them into the tank 1 by metering;

[0095] 02. Reaction and primary distillation: pump quantitative 95% ethanol and quantitative 40% hydrobromic acid into box 1 respectively, stir for 0.5 hours, pump into the preheater, preheat to the set temperature, and enter the reactive distillation The tower reacts. The reactive distillation column is heated to 40°C for one rectification, the temperature of the tower bottom is 60°C, the temperature of the tower top is 40°C, and the reflux temperature is 15°C. The excess hydrobromic acid solution is pumped into the acid recovery tower to distill and recover hydrobromic acid, and the distillation waste liquid from the acid recovery tower is pumped into the waste liquid neutralization tank, and after adding metered l...

Embodiment 3

[0100] A kind of technique for preparing bromoethane, comprises 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 pump them into the tank 1 by metering;

[0102] 02. Reaction and primary distillation: pump quantitative 95% ethanol and quantitative 40% hydrobromic acid into box 1 respectively, stir for 0.5 hours, pump into the preheater, preheat to the set temperature, and enter the reactive distillation The tower reacts. The reactive distillation column is heated to 40°C for a rectification, the temperature of the tower bottom is 70°C, the temperature of the tower top is 45°C, and the reflux temperature is 15°C. The excess hydrobromic acid solution is pumped into the acid recovery tower to distill and recover hydrobromic acid, and the distillation waste liquid from the acid recovery tower is pumped into the waste liquid neutralization tank, and after adding metered liq...

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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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