Device for extracting mesityl oxide from dilute acetone solution

A technology of mesityl oxide and acetone solution, which is applied in liquid separation, separation methods, organic chemistry, etc., can solve the problems of complex operation and additional process water, and achieve the effect of reducing labor costs and preventing operational errors

Active Publication Date: 2012-10-03
NANTONG CELLULOSE FIBERS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: To overcome the shortcomings of the chromatographic technology for extracting mesityl oxide from diacetone, adding process water

Method used

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  • Device for extracting mesityl oxide from dilute acetone solution
  • Device for extracting mesityl oxide from dilute acetone solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The chromatographic tank 3 contains a cooling coil 13; the side of the mesityl oxide storage tank 6 is provided with a liquid level sensor 10; the top is provided with a liquid level alarm 9, and when the liquid level exceeds a preset position, the instrument sends out a An alarm prompts the operator to open and close the valve 12; the mesityl oxide is discharged.

[0021] The transverse spacing between the flow guide baffles 14 is 50 mm.

[0022] There are 3 overflow ports A4 from top to bottom, respectively connected with bulkheads 5, the highest overflow port A4 is 6 cm higher than the overflow port B8, and the lowest overflow port A4 is 2 cm higher than the overflow port B8 , the overflow of the mesityl oxide layer of different thicknesses is realized by removing the bulkheads 5 of different heights.

[0023] The side of described diacetone storage tank 11 is respectively provided with liquid level sensor 10, measures the height of liquid level in the storage tank;...

Embodiment 2

[0025] The outer wall of the chromatographic tank 3 contains a cooling coil 13; the side of the mesityl oxide storage tank 6 is provided with a liquid level sensor 10 to measure the height of the liquid level in the storage tank; the top is provided with a liquid level alarm 9, when the liquid When the position exceeds the preset position, the instrument sends an alarm to prompt the operator to open and close the valve 12; the mesityl oxide is loaded into barrels from the mesityl oxide outlet 7.

[0026] The transverse spacing between the flow guide partitions 14 is 100mm.

[0027] There are 2 overflow ports A4 from top to bottom, respectively connected with bulkheads 5, the highest overflow port A4 is 4 cm higher than the overflow port B8, and the lowest overflow port A4 is 2 cm higher than the overflow port B8 , the overflow of the mesityl oxide layer of different thicknesses is realized by removing the bulkheads 5 of different heights.

[0028] The said propylene ketone st...

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Abstract

The invention provides a device for extracting mesityl oxide from a dilute acetone solution, which comprises a rectifying tower, a cooler, a chromatographic tank, a dilute acetone storage tank, a mesityl oxide storage tank and other components, wherein the chromatographic tank comprises a cooling coil and guide partitions staggered vertically; one or more overflow ports A for mesityl oxide are formed on the sides of the chromatographic tank and can overflow the mesityl oxide to the mesityl oxide storage tank; and an overflow port B for dilute acetone is formed below the overflow port A and can overflow the dilute acetone to the dilute acetone storage tank; a liquid level sensor can be arranged on a side of each of the dilute acetone storage tank and the mesityl oxide storage tank, and a liquid level alarm can be arranged on the top of each of the dilute acetone storage tank and the mesityl oxide storage tank. In the device, the chromatographic tank can implement layering automatically without being supplied with process water or tower bottom liquid; the dilute acetone can return to the rectifying tower after being heated to solve the problem that the stability of the rectifying tower is affected due to different temperatures of the solutions entering the tower. The storage tank can either alarm or open and close a valve automatically when being full so as to reduce labor cost and prevent operation error.

Description

technical field [0001] The invention relates to a device for extracting and recovering mesityl oxide contained in diacetone solution discharged from chemical enterprises. Background technique [0002] Acetone solvent is commonly used in chemical enterprises. Acetone is miscible with water. After recovery, the used acetone is often miscible with a large amount of water to form diacetone. If purer acetone is to be obtained, it is necessary to concentrate distilled acetone. However, due to the formation, storage and rectification of propylene ketone, a small amount of mesityl oxide will be produced. Mesityl oxide is soluble in acetone, insoluble in water, low in volatility, has a strong smell, is highly toxic, and is dangerous. Chemicals, during the distillation of acetone, can be removed through the side draw of the distillation column. [0003] The technology of extracting mesityl oxide from the side line in the existing distilling process of diacetone: at a certain distill...

Claims

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Application Information

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IPC IPC(8): B01D3/42B01D17/028C07C49/08C07C45/82C07C45/78
Inventor 杨占平陆书明朱丛静肖峰陈颖涌高春红胡杰
Owner NANTONG CELLULOSE FIBERS CO LTD
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