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Novel process for recovering N-methyl morpholine and N-ethyl morpholine

A technology of methylmorpholine and ethylmorpholine, which is applied in the fields of N-methylmorpholine and N-ethylmorpholine, and can solve problems such as environmental pollution

Active Publication Date: 2015-05-13
吉林化工学院化工分离技术开发中心
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Problems solved by technology

[0002] The morpholine production process produces azeotropes containing N-methylmorpholine, N-ethylmorpholine and water. Most of these azeotropes are discharged without treatment, causing serious environmental pollution and discharging very valuable Chemical products-N-Methylmorpholine and N-Ethylmorpholine

Method used

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  • Novel process for recovering N-methyl morpholine and N-ethyl morpholine

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Embodiment

[0010] A certain enterprise has a morpholine production device with an annual output of 3,000 tons, and the top of the light removal tower produces 1,680 tons of azeotropes containing N-methylmorpholine, N-ethylmorpholine and water every year, and its composition is: N-methylmorpholine Base morpholine 3.0wt%, N-ethylmorpholine 8.0wt%, water 88.7wt%, other components 0.3wt%, the present invention has set up the method as shown in the accompanying drawing of description to reclaim morpholine produced in the production process N-methylmorpholine and N-ethylmorpholine in the N-methylmorpholine, N-ethylmorpholine and water azeotrope; The azeotrope material from the light removal tower top of the morpholine production unit is made of The upper part of the liquid-liquid extraction tower T001 enters, and benzene enters from the lower part of the T001 tower as an extractant. N-methylmorpholine and N-ethylmorpholine in the azeotrope are transferred into benzene through multi-stage extrac...

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Abstract

A morpholine production device produces azeotrope containing N-methyl morpholine, N-ethyl morpholine and water, the great majority of the azeotrope is discharged without processing so that serious pollution to the environment is caused, and expensive chemical products like the N-methyl morpholine and the N-ethyl morpholine are discharged simultaneously. A novel process for recovering the N-methyl morpholine and the N-ethyl morpholine can obtain N-methyl morpholine products with high purity and N-ethyl morpholine products with high purity, content of pollutants in discharged water is greatly reduced, pollution to environment is reduced, and big social benefits and economic benefits are obtained.

Description

Technical field: [0001] The invention relates to a method for reclaiming N-methylmorpholine, N-ethylmorpholine and N-methylmorpholine and N-ethylmorpholine in the water azeotrope produced by the morpholine production process, High-purity N-methylmorpholine and N-ethylmorpholine products can be obtained, and the content of pollutants in the discharged water can be greatly reduced to reduce environmental pollution. technical background: [0002] The morpholine production process produces azeotropes containing N-methylmorpholine, N-ethylmorpholine and water. Most of these azeotropes are discharged without treatment, causing serious environmental pollution and discharging very valuable Chemical products - N-methylmorpholine and N-ethylmorpholine. If N-methylmorpholine and N-ethylmorpholine can be recovered, not only can the content of pollutants in the discharged water be greatly reduced, environmental pollution can be reduced, social benefits can be obtained, but good economic...

Claims

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Application Information

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IPC IPC(8): C07D295/03C07D295/023
Inventor 高维平张吉波李晓光杨莹
Owner 吉林化工学院化工分离技术开发中心
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