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Tri-n-butylamine production device with dividing-wall distillation columns

A technology of dividing wall rectification column and tri-n-butylamine, which is applied in the field of tri-n-butylamine production equipment, can solve the problem of high energy consumption, achieve the effects of reducing energy consumption, saving equipment investment and energy consumption, and ensuring quality

Active Publication Date: 2018-06-12
ZHEJIANG JIANYE CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current tri-n-butylamine production process uses three rectification towers for product extraction and separation, so the energy consumption is relatively high

Method used

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  • Tri-n-butylamine production device with dividing-wall distillation columns
  • Tri-n-butylamine production device with dividing-wall distillation columns
  • Tri-n-butylamine production device with dividing-wall distillation columns

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Embodiment 1

[0031] Embodiment 1, a kind of tri-n-butylamine production device that uses dividing wall rectification tower, such as figure 2 and image 3 As shown, it includes a fixed bed reactor 1, a first heat pump 2, a first heat exchanger 3, a first dividing wall rectification column 4, a second heat exchanger 5, a second heat pump 6, and a second dividing wall rectification column 7 and the third heat exchanger 8.

[0032] The upper part of the fixed bed reactor 1 is a vaporization mixing chamber, and the lower part is a fixed bed, and the vaporization mixing chamber is provided with a mixed solution inlet 11 and a hydrogen inlet 12, and the mixed solution inlet 11 is located above the hydrogen inlet 12; the fixed The bed is filled with a catalyst, and the bottom of the fixed bed is provided with a reactant outlet 13;

[0033] The first heat pump 2 and the second heat pump 6 are respectively provided with respective inlets and outlets; both the first heat pump 2 and the second heat...

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Abstract

The invention discloses a tri-n-butylamine production device with dividing-wall distillation columns. The tri-n-butylamine production device with the dividing-wall distillation columns comprises a fixed bed reactor, a first heat pump, a first heat exchanger, a first dividing-wall distillation column, a second heat exchanger, a second heat pump, a second dividing-wall distillation column and a third heat exchanger, wherein the first dividing-wall distillation column and the second dividing-wall distillation column are in the identical structure including that the middle of a distillation columncavity is provided with a vertical dividing wall which divides the middle of the distillation column cavity into a feeding side and a non-feeding side, both the feeding side and the non-feeding sideare filled with filler, the distillation column cavity above the dividing wall is a distillation section filled with distillation section filler, and the distillation column cavity under the dividingwall is a stripping section filled with stripping section filler. The tri-n-butylamine production device with the dividing-wall distillation columns has the advantages of saving energy and reducing consumption when applied to producing tri-n-butylamine.

Description

technical field [0001] The invention belongs to the field of tri-n-butylamine production, and in particular relates to a tri-n-butylamine production device using a dividing wall rectification tower. 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, with a special odor, 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. [0003] The main 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 mixt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/14B01D3/32C07C209/86C07C209/22C07C211/13
CPCB01D3/14B01D3/32C07C209/22C07C209/86C07C211/13Y02P20/10Y02P70/10
Inventor 沈剑冯烈郑丰平孙琪宋同辉张建明
Owner ZHEJIANG JIANYE CHEM
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