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A kind of crude anthracene extraction system and extraction method

An extraction method and crude anthracene technology, applied in the field of crude anthracene extraction systems, can solve the problems of long production cycle, low cooling crystallization efficiency, long residence time, etc., to simplify production equipment and processes, reduce production costs, and improve product quality. Effect

Active Publication Date: 2015-12-02
CHONGQING LUYANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the process of extracting crude anthracene in industry is mainly crystallization-centrifugation, but the quality of crude anthracene produced by the current process is unstable, and the residence time of anthracene oil in the crystallizer is long, about 16 to 24 hours, and the batch crystallization required The number of machines is large, the efficiency of cooling and crystallization is low, the production cycle is long, and the floor area is large, the labor intensity of workers is high, and continuous production cannot be realized, resulting in low production efficiency of crude anthracene

Method used

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  • A kind of crude anthracene extraction system and extraction method
  • A kind of crude anthracene extraction system and extraction method
  • A kind of crude anthracene extraction system and extraction method

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Experimental program
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Effect test

Embodiment 1

[0064] According to the crude anthracene extraction system of the present invention, the system includes: an anthracene oil tank, which is used to hold and provide anthracene oil; a first crystallizer, the first end of the first crystallizer is connected to the anthracene oil tank, and is used to supply the anthracene oil tank Anthracene oil is crystallized; the first crystal growth tank, the first end of the first crystal growth tank is connected to the second end of the first crystallizer, for the crystal to stay and continue to grow after the anthracene oil is cooled and crystallized; the first centrifuge, the second The first end of a centrifuge is connected to the second end of the first crystal growth tank, and the anthracene oil crystals after crystal growth are centrifugally separated into crude anthracene and decrystallized anthracene oil; the decrystallized anthracene oil tank, the first end of the decrystallized anthracene oil tank is connected to The second end of t...

Embodiment 2

[0066] according to figure 2 The crude anthracene extraction system of the present invention is shown, the system includes: anthracene oil tank, the anthracene oil tank is used to hold and provide anthracene oil; the first crystallizer, the first end of the first crystallizer is connected with the anthracene oil tank, and is used to extract the anthracene oil tank The provided anthracene oil is crystallized; the first crystal growth tank, the first end of the first crystal growth tank is connected to the second end of the first crystallizer, for the crystallization of the anthracene oil to stay and continue to grow after cooling and crystallization; the first centrifuge , the first end of the first centrifuge is connected with the second end of the first crystal growth tank, and the anthracene oil after the crystal growth is separated into crude anthracene and decrystallized anthracene oil; decrystallized anthracene oil tank, the first end of the decrystallized anthracene oil ...

Embodiment 3

[0070] According to the crude anthracene extraction method of the present invention, the method includes: providing an extraction system: the system includes an anthracene oil tank; a first crystallizer, the first end of the first crystallizer is connected to the anthracene oil tank; Crystal tank, the first end of the first crystal growth tank is connected to the second end of the first crystallizer; the first centrifuge, the first end of the first centrifuge is connected to the second end of the first crystal growth tank The two ends are connected; the decrystallized anthracene oil tank, the first end of the decrystallized anthracene oil tank is connected to the second end of the first centrifuge; the method includes the steps: first enter the first crystallization step S1100: the anthracene oil tank provides anthracene at 100°C The oil is put into the first crystallizer, and the anthracene oil is cooled to 45°C within 70 minutes to crystallize; the first crystal growth step S...

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Abstract

The invention discloses a crude anthracene extracting system. The system comprises an anthracene oil tank, a first crystallizer, a first crystal growing tank, a first centrifuge and a decrystalized anthracene oil tank, wherein the first end of the first crystallizer is connected with the anthracene oil tank; the first end of the first crystal growing tank is connected with the second end of the first crystallizer; the first end of the first centrifuge is connected with the second end of the first crystal growing tank; the first end of the decrystalized anthracene oil tank is connected with the second end of the first centrifuge. The invention also discloses a crude anthracene extracting method realized by using the system. The crude anthracene extracting method comprises the steps of: first crystallization step: providing 100-110-DEG C anthracene oil to the first crystallizer by the anthracene oil tank, cooling the anthracene oil to 45-50 DEG C within 70-100min, and then crystallizing; first crystal growing step: conveying the crystallized anthracene oil from the top to the bottom of the first crystal growing tank and continuing to crystallize; first centrifuging step: centrifuging the crystal growing anthracene oil in the first centrifuge to obtain crude anthracene and decrystalized anthracene oil.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a crude anthracene extraction system and extraction method. Background technique [0002] Crude anthracene is a mixture composed of anthracene, phenanthrene and carbazole. Crude anthracene is a very important intermediate product in the process of coal tar refining, and is mainly used to extract refined anthracene, phenanthrene and carbazole. [0003] At present, the process of extracting crude anthracene in industry is mainly crystallization-centrifugation, but the quality of crude anthracene produced by the current process is unstable, and the residence time of anthracene oil in the crystallizer is long, about 16 to 24 hours, and the batch crystallization required The number of machines is large, the efficiency of cooling and crystallization is low, the production cycle is long, and the floor area is large, the labor intensity of workers is high, and continuous production canno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C15/28C07C7/14
Inventor 陈国平汪洋黄福林李成张超远
Owner CHONGQING LUYANG CHEM