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Method and device for producing high-purity tri-n-butylamine

A tri-n-butylamine production device technology, applied in the field of high-purity tri-n-butylamine production devices, can solve the problems of no public reports on the tri-n-butylamine production process, and achieve the effect of high impurity concentration and reduced processing capacity

Active Publication Date: 2019-12-03
ZHEJIANG JIANYE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no public report about the production process of synchronously removing light and heavy impurities to obtain high-purity tri-n-butylamine

Method used

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  • Method and device for producing high-purity tri-n-butylamine
  • Method and device for producing high-purity tri-n-butylamine

Examples

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Effect test

example 1

[0029] Example 1, a kind of high-purity tri-n-butylamine production device, by fixed-bed reactor 1, take off n-butylamine tower 2, take off di-n-butylamine tower 3, remove light tower 4, molecular distillation tower 5, extraction tower 6, Stripping tower 7, extraction agent regeneration tower 8 and oil-water separator 9 are formed;

[0030] The upper part of the fixed bed reactor 1 is a vaporization chamber, and the lower part is a fixed bed reaction section, the vaporization chamber is provided with a material inlet 11 and a hydrogen inlet 12; the bottom of the fixed bed reaction section is provided with a bottom outlet 13;

[0031]The n-butylamine removal tower 2, the di-n-butylamine removal tower 3, the light removal tower 4, and the extraction agent regeneration tower 8 are all rectification towers, all of which are provided with a feed inlet, a tower top distillate outlet and a tower still liquid outlet; Specifically:

[0032] The de-n-butylamine tower 2 is provided with...

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PUM

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Abstract

The invention discloses a device for producing high-purity tri-n-butylamine. The device for producing the high-purity tri-n-butylamine comprises a fixed bed reactor, a n-butylamine removal tower, a di-n-butylamine removal tower, a light component removal tower, a molecular distillation tower, an extraction tower, a reextraction tower, an extraction agent regeneration tower and an oil-water separator; each of the n-butylamine removal tower, the di-n-butylamine removal tower, the light component removal tower and the extraction agent regeneration tower is a rectifying tower and is provided witha feed opening, a tower top distillate opening and a tower kettle liquid outlet; the extraction tower and the reextraction tower are extraction towers; a light phase outlet and a heavy phase inlet areformed in the top of each of the extraction tower and the reextraction tower; and a light phase inlet and a heavy phase outlet are formed in the bottom of each of the extraction tower and the reextraction tower. The invention also provides a method for producing the tri-n-butylamine by using the device. A process of water extraction, di-n-butylamine reextraction and rectification regeneration ofan extraction agent is utilized, the heavy impurity N-butyl butyramide in a tri-n-butylamine production system is discharged out of the production system, and the purity of the tri-n-butylamine product is ensured.

Description

technical field [0001] The invention belongs to the field of low-carbon aliphatic amine production, and in particular relates to a high-purity tri-n-butylamine production device and process. Background technique [0002] Tri-n-butylamine, whose molecular formula is C 12 h 27 N, CAS number: 102-82-9, molecular weight 185.35, boiling point 216.0-217.0°C under normal pressure. Tri-n-butylamine is a colorless or light yellow liquid at normal temperature and pressure. It has a special odor and is weakly alkaline. It is easily soluble in ethanol, ether, etc., and slightly soluble in water. It has a wide range of industrial uses, is an important organic chemical intermediate, and is also an excellent reagent, emulsifier, extractant, insecticide and preservative. The traditional production process of tri-n-butylamine, such as figure 1 As shown, after vaporizing n-butylamine and di-n-butylamine in the fixed-bed reactor (the function of the vaporization chamber is to vaporize the ...

Claims

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Application Information

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IPC IPC(8): C07C209/64C07C209/84C07C209/86C07C211/07
CPCC07C209/64C07C209/84C07C209/86C07C211/07Y02P20/10
Inventor 沈剑冯烈杨泽慧周国权陈云斌李东郑丰平李风莲
Owner ZHEJIANG JIANYE CHEM
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