Drying device for 2,5-di-anilino-terephthalic acid production

A technology of terephthalic acid and drying device, which is applied in the directions of drying gas arrangement, drying solid materials, drying goods processing, etc., can solve the problems such as the specific structure of the undisclosed dryer, and achieve the effect of saving energy

Active Publication Date: 2021-11-05
河北彩客新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the specific structure of the dryer is not disclosed

Method used

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  • Drying device for 2,5-di-anilino-terephthalic acid production
  • Drying device for 2,5-di-anilino-terephthalic acid production
  • Drying device for 2,5-di-anilino-terephthalic acid production

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Embodiment

[0032] Embodiment: a kind of 2,5-dianilino terephthalic acid production drying device, such as figure 1 with figure 2 , comprising a base 1 placed on the ground, the upper end of the base 1 is provided with a vertical plate 11, and the vertical plate 11 is provided with a multi-layer mesh conveyor belt 12 parallel to each other, and the conveyor belts 12 of each layer are driven by a motor; at this time, each layer of transmission The belts 12 are all fixed on the vertical plate 11 by two rotating shafts, the rotating shaft is connected with the vertical plate 11 in rotation, and one of the rotating shafts is driven by a motor to rotate, and the transmission belt 12 is wound outside the two rotating shafts, because the transmission of the transmission belt 12 is a prior art , which will not be described here.

[0033] Such as figure 1 with figure 2 , one side of the base 1 is provided with a feeding part for transferring the product to the uppermost conveyor belt 12, and ...

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PUM

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Abstract

The invention discloses a drying device for 2,5-di-anilino-terephthalic acid production, and relates to the technical field of chemical synthesis and preparation. The drying device has the advantage of drying the product 2,5-di-anilino-terephthalic acid, and the technical scheme is characterized in that the drying device comprises a base placed on the ground, a vertical plate is arranged at the upper end of the base, a plurality of layers of mutually parallel net-shaped conveying belts are arranged on the vertical plate, and the layers of conveying belts are driven by a motor; one side of the base is provided with a material conveying piece for conveying products to the uppermost layer of conveying belt, and one side of the base is provided with a storage piece for receiving the products output from the lowermost layer of conveying belt; the conveying directions of every two adjacent conveying belts are opposite, the feeding ends and the output ports of every two adjacent conveying belts in the vertical direction are distributed in a staggered mode, the feeding end of the lower conveying belt is located below the output port of the upper conveying belt, and a V-shaped conveying pipe is arranged on the portion, between every two adjacent conveying belts, of the vertical plate; and a plurality of air heaters are evenly distributed on the portion, below the conveying belts, of a heat preservation cover, and an exhaust fan is arranged at the upper end of the heat preservation cover.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis and preparation, in particular to a drying device for producing 2,5-dianiline terephthalic acid. Background technique [0002] 2,5-di-anilino-terephthalic acid (2,5-di-anilino-terephthalic acid), molecular formula C20H16O4N2, molecular weight 348, purple-red solid powder, referred to as DATA. 2,5-Dianiline terephthalic acid intermediate is an important intermediate for the synthesis of advanced organic pigments quinacridone pigments. [0003] The Chinese patent with the publication number CN101823978A discloses a method for preparing 2,5-dianilino terephthalic acid DATA, which uses dimethyl succinylate DMSS and aniline AN as raw materials, and the steps of the method are as follows (1) ingredients mixing; (2) heating and dissolving; (3) condensation reaction; (4) hydrolysis oxidation reaction; (5) solid-liquid separation; (6) adsorption and removal of impurities; (7) solid-liquid separ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B17/04F26B21/00F26B25/00F26B5/16
CPCF26B17/04F26B21/001F26B21/004F26B25/002F26B5/16Y02P20/10
Inventor 马林波任全胜李祥金柴汉松侯晓培
Owner 河北彩客新材料科技股份有限公司
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