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Liquid ammonia material for preparing morpholine

A liquid ammonia concentrate and liquid ammonia technology, applied in the preparation/separation of ammonia, ammonia compounds, inorganic chemistry, etc., can solve the problems of high production cost of morpholine, environmental pollution, waste of resources, etc., to reduce production costs , Reduce environmental pollution and save resources

Inactive Publication Date: 2009-12-23
ANHUI HAOYUAN CHEM IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As crude morpholine enters the separation section, it not only brings environmental pollution, but also causes a great waste of resources, resulting in high production costs of morpholine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] This embodiment is based on the proportioning of high-purity liquid ammonia concentrate and recovered liquid ammonia extracted from crude morpholine. In specific implementation, the liquid ammonia concentrate with a purity of more than 98% and the recovered liquid ammonia with a purity of about 90% are taken, and the ratio is 25% for the liquid ammonia concentrate and 75% for the recovered liquid ammonia.

Embodiment 2

[0016] This embodiment is based on the proportioning of high-purity liquid ammonia concentrate and recovered liquid ammonia extracted from crude morpholine. In the specific implementation, the liquid ammonia concentrate with a purity of more than 98% and the recovered liquid ammonia with a purity of about 90% are taken, and the liquid ammonia concentrate is 35% and the recovered liquid ammonia is 65% in proportion.

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PUM

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Abstract

A liquid ammonia material for preparing morpholine is characterized in that the material is formed by proportioning high-purity liquid ammonia concentrate and liquid ammonia recycled from raw morpholine, wherein the liquid ammonia concentrate with purity over 98 percent is not less than 20 percent and the recycled liquid ammonia with purity of about 90 percent is not greater than 80 percent. The preparing cost of morpholine can be greatly reduced, resources can be saved and contamination to environment can be reduced through effectively utilizing the recycled liquid ammonia from raw morpholine in the premise of ensuring the morpholine quality.

Description

Technical field: [0001] The invention belongs to the technical field of morpholine production, and in particular relates to a liquid ammonia raw material for preparing morpholine. Background technique: [0002] Morpholine, also known as 1,4 oxazidine, molecular formula C 4 h 9 NO, is a colorless oily liquid, hygroscopic, strongly alkaline, with ammonia odor, miscible with organic solvents, insoluble in strong alkali solutions, flammable, and is an important organic synthesis reagent. It is mainly used as the raw material of rubber accelerator NOBS, OTOS, etc. It is also widely used in medicine, textile, paint and other industries. [0003] In the prior art, according to national standards, the preparation of morpholine must use liquid ammonia concentrate with a purity of more than 98% as raw material. Diethylene glycol, liquid ammonia and hydrogen enter the reactor after heating and vaporization. Under high temperature and high pressure, The gas-solid phase catalysis and...

Claims

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Application Information

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IPC IPC(8): C01C1/00C01C1/02C07D295/027C07D295/023
Inventor 刘博凡殿才李志军宋玉怀梅树美
Owner ANHUI HAOYUAN CHEM IND GRP