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A kind of cold treatment device and method of 2-ethoxypropene

An ethoxypropylene and cold treatment technology, applied in separation methods, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of general cooling effect and poor practicability, and achieve good cooling effect, good practicability, Easy-to-use effects

Active Publication Date: 2021-10-15
ANHUI WEICHI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the boiling point of 2-ethoxypropene<the boiling point of ethanol<the boiling point of diethyl acetone acetal, and the binary azeotrope of ternary azeotrope and ethanol-acetone diethyl acetal can be formed between the three, therefore, The conversion rate can be improved by adopting the reaction refining technology, but the pure 2-ethoxypropene cannot be obtained, and the yield increases significantly with the increase of the reflux ratio
Therefore, it is necessary to control the vapor of 2-ethoxypropylene and ethanol mixture through reasonable cooling. The existing 2-ethoxypropylene cold treatment device has the problems of fixed cooling tube, general cooling effect and poor practicability.

Method used

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  • A kind of cold treatment device and method of 2-ethoxypropene
  • A kind of cold treatment device and method of 2-ethoxypropene
  • A kind of cold treatment device and method of 2-ethoxypropene

Examples

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Effect test

Embodiment 1

[0034] See Figure 1 - Figure 4 with Figure 7 - Figure 8 , A method of using a 2-ethoxypropylene cold treatment device, including the following steps:

[0035] The first step: first agitate acetol and ammonium chloride to the mixing device 1 to form 2-ethoxypropylene and ethanol;

[0036] Step 2: The conveying pump 15 operates 2-ethoxypropylene and ethanol into the distillation column 3, and the reboiler 31 in the distillation column 3 operates to heat 2-ethoxypropylene and ethanol mixture.

[0037] In the third step: open the valve 291 on the output tube 29, the vapor in the distillation column 3 is inserted into the first spiral conduit 24, and the steam rises in the first spiral pipe 24, and the steam is rising, and it is subjected to a cooling boon 22 Cooling of the cooling water, of course, the inner cavity of the cooling bin 22 is equipped with flowing cooling water, the cooling boon 22 serves to cool the mixture of 2-ethoxypropylene and ethanol, which 2-ethoxypropylene can b...

Embodiment 2

[0041] See Figure 1 - Figure 3 , Figure 5 with Figure 7 - Figure 8 , A method of using a 2-ethoxypropylene cold treatment device, including the following steps:

[0042] The first step: first agitate acetol and ammonium chloride to the mixing device 1 to form 2-ethoxypropylene and ethanol;

[0043] Step 2: The conveying pump 15 operates 2-ethoxypropylene and ethanol into the distillation column 3, and the reboiler 31 in the distillation column 3 operates to heat 2-ethoxypropylene and ethanol mixture.

[0044] In the third step: open the valve 291 on the output tube 29, the vapor in the distillation column 3 is inserted into the first spiral conduit 24, and the steam rises in the first spiral pipe 24, and the steam is rising, and it is subjected to the lumen of the cooling boon 22. Cooling of the cooling water, of course, the inner cavity of the cooling bin 22 is equipped with flowing cooling water, the cooling boon 22 serves to cool the mixture of 2-ethoxypropylene and ethanol, wh...

Embodiment 3

[0048] See Figure 1 - Figure 3 , Figure 6 - Figure 8 , A method of using a 2-ethoxypropylene cold treatment device, including the following steps:

[0049] The first step: first agitate acetol and ammonium chloride to the mixing device 1 to form 2-ethoxypropylene and ethanol;

[0050] Step 2: The conveying pump 15 operates 2-ethoxypropylene and ethanol into the distillation column 3, and the reboiler 31 in the distillation column 3 operates to heat 2-ethoxypropylene and ethanol mixture.

[0051] In the third step: open the valve 291 on the output tube 29, the vapor in the distillation column 3 is inserted into the first spiral conduit 24, and the steam rises in the first spiral pipe 24, and the steam is rising, and it is subjected to the lumen of the cooling boon 22. Cooling of the cooling water, of course, the inner cavity of the cooling bin 22 is equipped with flowing cooling water, the cooling boon 22 serves to cool the mixture of 2-ethoxypropylene and ethanol, which 2-ethoxypr...

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Abstract

The invention discloses a cold treatment device and method for 2-ethoxypropylene. A reflux control component is installed above the distillation tower, and the reflux control component includes a bottom plate, a cooling chamber, a top plate, a first spiral pipeline, a second spiral pipeline, and a cluster tube , side pipe, clamping frame and output pipe, among which the reflux control component can meet different use effects, in which the reboiler in the distillation column heats up the mixture and boils, the mixed steam flows to the reflux control component, and the cooling chamber plays the role of cooling the mixed steam The role of the first helical pipe is connected to the side pipe through the first air leak hole and the second air leak hole, so that adaptive adjustment can be achieved, in which the first helical pipe is used as the main cooling pipe, and the second helical pipe is used as the auxiliary cooling pipe. By adjusting the height of the bottom plate, it is possible to control whether the first helical pipe is connected to the second helical pipe, so that the cooling capacity of the mixed steam can be adjusted according to the demand. The whole device has good cooling effect, is convenient to use, and has good practicability.

Description

Technical field [0001] The present invention relates to a 2-ethoxypropylene treatment apparatus, and more particularly to a cold treatment apparatus and method of 2-ethoxypropylene. Background technique [0002] 2-ethoxypropylene is a chemical, the molecular formula is C5H10O, 2-ethoxypropylene is a pharmaceutical and fragrant intermediate for synthesizing gratin, vitamin E, vitamin A and different carotenoids. 2-ethoxypropylene boiling point is 62 ~ 64 ° C, is an important pharmaceutical intermediate. At present, 2-methoxypropylene has gradually substituted 2-methoxypropylene into a key intermediate of synthetic clamp, and the synthesis method is usually used. footwork. [0003] Acetone Diethanol can be decomposed to 2-ethoxypropylene and ethanol under the action of ammonium chloride, and the balance conversion is less than 60% in boiling state. Due to the boiling point of 2-ethoxypropylene <ethanol, the boiling point of the acetone is acetate, and the ternary fluid and ethan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/18B01D3/00B01D3/32C07C41/18C07C41/42C07C43/15
CPCB01D3/00B01D3/009B01D3/322B01J19/18C07C41/18C07C41/42C07C43/15
Inventor 姜友安张豪
Owner ANHUI WEICHI CHEM