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High-purity tri-n-butylamine production method and device used

A technology of tri-n-butylamine and production equipment, which is applied in the fields of purification/separation of amino compounds, organic chemistry, and disproportionation to prepare amino compounds. The effect of reducing the amount of processing

Active Publication Date: 2022-07-05
ZHEJIANG JIANYE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • High-purity tri-n-butylamine production method and device used
  • High-purity tri-n-butylamine production method and device used

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example 1

[0029] Example 1, a kind of high-purity tri-n-butylamine production device, by fixed bed reactor 1, removing n-butylamine tower 2, removing di-n-butylamine tower 3, removing light tower 4, molecular distillation tower 5, extraction tower 6, The stripping tower 7, the extractant regeneration tower 8 and the 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 removal of n-butylamine tower 2, the removal of di-n-butylamine tower 3, the removal of light tower 4, and the extraction agent regeneration tower 8 are all rectification towers, and are all provided with a feed inlet, a tower top distillate liquid outlet and a tower still liquid outlet; Specifically:

[0032] The de-n-butylamine tower...

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Abstract

The invention discloses a high-purity tri-n-butylamine production device. Regenerating tower and oil-water separator; removing n-butylamine tower, removing di-n-butylamine tower, removing light tower and extracting agent regeneration tower are all rectifying towers, all of which are equipped with feed inlet, tower top distillate outlet and tower The kettle liquid outlet; the extraction tower and the back-extraction tower are both extraction towers, the top is provided with a light phase outlet and a heavy phase inlet, and the bottom is provided with a light phase inlet and a heavy phase outlet. The present invention also provides a method for producing tri-n-butylamine by utilizing the device. The present invention utilizes the process of water extraction+di-n-butylamine back-extraction+rectification to regenerate the extraction agent, and the heavy impurity N-butylbutanamide in the tri-n-butylamine production system is discharged from the production system, thereby ensuring the high quality of the tri-n-butylamine product. purity.

Description

technical field [0001] The invention belongs to the field of low-carbon fatty amine production, and in particular relates to a high-purity tri-n-butylamine production device and process. Background technique [0002] Tri-n-butylamine, its molecular formula is C 12 H 27 N, CAS No.: 102-82-9, molecular weight is 185.35, boiling point under normal pressure is 216.0-217.0℃. Tri-n-butylamine is colorless or light yellow liquid under normal temperature and pressure, has a special smell, is weakly alkaline, 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 the n-butylamine and di-n-butylamine are vaporized in the fixed-bed reactor (the function of the vaporization chamber is to vaporize the mixture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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