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Anthraquinone production process and equipment

A production process and production equipment technology, applied in the field of anthraquinone production process and equipment, can solve the problems of large safety hazards in the collection process, dust explosion, and affecting the output of the device, so as to solve the pollution of waste water and waste gas, and improve product quality and yield Effect

Pending Publication Date: 2022-03-01
兖矿科蓝凯美特化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the collection of anthraquinone by the collector is an intermittent operation. After the collector is full of anthraquinone, it needs to be cleaned manually (once a day). This process seriously affects the output of the device.
Moreover, the collection process has a relatively high safety hazard, and there is a risk of dust explosion

Method used

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  • Anthraquinone production process and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment discloses a production process of anthraquinone,

[0038] a) Evaporation of anthracene: liquid refined anthracene is vaporized by superheated steam in the evaporator, and the mixture of water vapor and refined anthracene gas leaves the evaporator and enters the carbon deposit filter, where the carbon deposit in the mixed gas is filtered out. The purified mixture enters the reactor after being mixed with hot air in the mixer;

[0039] b) Oxidation reaction of anthracene: gaseous anthracene fully mixed with hot air enters the reactor, and is oxidized to produce anthraquinone in a five-stage reactor equipped with a catalyst;

[0040] c) Desublimation and collection of anthraquinone: add a new desublimation device before collecting anthraquinone, anthraquinone gas enters the desublimation device, and desalinated water and hot air are sprayed to the desublimation at a certain temperature at the same time In the container, the heat carried by the anthraquinon...

Embodiment 2

[0043] like figure 1As shown, the anthraquinone production equipment includes an evaporator 1, the steam inlet of the evaporator is connected to the steam pipeline, superheated steam enters the evaporator through the steam pipeline, and the feed inlet of the evaporator is connected to the raw material pipeline, The liquid refined anthracene is pumped into the evaporator by the raw material pipeline through the raw material pump 7, and the discharge port of the evaporator is connected with the feed port of the carbon deposit filter 2; the exhaust port of the carbon deposit filter 2 and the hot air pipeline All are communicated with the air inlet of the gas mixing tube 9, and the gas outlet of the gas mixing tube 9 is communicated with the feed port of the reactor; the reactor is a five-stage reactor equipped with a catalyst, and the five-stage reactor outlet is connected to the The feed port of the device 6 is connected, and the discharge port of the desublimer 6 is connected w...

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PUM

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Abstract

The invention relates to an anthraquinone production process which comprises the following steps: a) anthracene evaporation; b) oxidation reaction of anthracene; and c) desublimation and collection of anthraquinone. The invention further discloses anthraquinone production equipment. The invention has the following beneficial effects: continuous and safe production can be realized, and no three wastes are generated. The gasified refined anthracene is filtered to remove impurities, so that other side reactions in the oxidation reaction process are prevented, and the product quality and yield are effectively improved. The desublimation device is additionally arranged, gaseous anthraquinone can be collected in a concentrated mode, continuous and automatic anthraquinone collection is achieved through the cooperation of the desublimation device and the collector of a unique structure, generated waste gas is incinerated, and no three wastes are generated in the production process.

Description

technical field [0001] The invention relates to an anthraquinone production process and equipment, belonging to the technical field of chemical industry. Background technique [0002] At present, most domestic anthraquinone production processes adopt the catalytic oxidation of anthracene, which uses refined anthracene as raw material to obtain anthraquinone through gas-phase catalytic oxidation. This method has been applied in many enterprises in China. The process route is: melting solid refined anthracene into liquid refined anthracene in an anthracene melting tank, and then pumping the liquid refined anthracene to the gasification kettle through a submerged pump. The refined anthracene is gasified by mixing S3 steam and liquid refined anthracene in the gasification kettle, and the gasified refined anthracene is mixed with the heated hot air in the mixer. The gasified refined anthracene mixed with hot air enters the reactor equipped with catalyst, and an oxidation reactio...

Claims

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Application Information

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IPC IPC(8): C07C46/04C07C46/10C07C50/18C07C7/00C07C15/28
CPCC07C46/04C07C46/10B01D1/14B01D46/00B01J8/02C07C7/005C07C50/18C07C15/28
Inventor 商振池刘文平谭诗诚闫晓燕唐海洋于灵
Owner 兖矿科蓝凯美特化工有限公司