Treatment method of nitration wastewater in TATB (triamino trinitrobenzene) production technique

A technology of nitrification wastewater and treatment method, which is applied in the fields of natural water treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of non-selectivity, no economical and effective method for nitrification wastewater, etc., and achieves short treatment time. , Simple operation, high COD removal rate

Inactive Publication Date: 2015-01-07
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Activated carbon is often used as an adsorbent for wastewater treatment because of its large specific surface area and more pore structure, which can remove organic matter from wastewater, and because of its simple operation, wide sourc

Method used

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  • Treatment method of nitration wastewater in TATB (triamino trinitrobenzene) production technique
  • Treatment method of nitration wastewater in TATB (triamino trinitrobenzene) production technique
  • Treatment method of nitration wastewater in TATB (triamino trinitrobenzene) production technique

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Experimental program
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Effect test

Embodiment 1

[0033] (1) Filtration: filter the wastewater produced by the TATB nitrification reaction, collect the precipitate, wash to obtain nitrification wastewater; the pH of the nitrification wastewater is <0, the COD value is 672.7mg / L, and the phloroglucinol content is 0.73mg / ml;

[0034] (2) Adsorption: At 30°C, take 20ml (wet volume) X-5 resin and evenly fill it in the adsorption column In the process, 100ml of nitrification wastewater was added to the adsorption column filled with X-5 resin, and the wastewater was flowed through the adsorption column at a speed of 1BV / h, and the colorless effluent was collected. The COD value was 80.5mg / L, and the COD removal rate reached 88.03 %.

[0035] (3) Desorption: The X-5 resin after adsorption treatment is eluted with methanol, wherein the elution temperature is 40°C; the eluate after methanol elution is distilled to recover methanol, and the residue is incinerated; The adsorption column was washed with hot water and reused.

Embodiment 2

[0037] (1) Filtration: filter the wastewater produced by the TATB nitrification reaction, collect the precipitate, wash to obtain nitrification wastewater; the pH of the nitrification wastewater is <0, the COD value is 672.7mg / L, and the phloroglucinol content is 0.73mg / ml;

[0038] (2) Adsorption: At 40°C, take 100ml (wet volume) X-5 resin and evenly fill it in the adsorption column In the process, 100ml of nitrification wastewater was added to the adsorption column filled with X-5 resin, and the wastewater flowed through the adsorption column at a speed of 3BV / h, and the colorless effluent was collected. The COD value was 79.76mg / L, and the COD removal rate reached 88.14 %.

[0039] (3) Desorption: The X-5 resin after adsorption treatment is eluted with methanol, wherein the elution temperature is 60°C; the eluate after methanol elution is distilled to recover methanol, and the residue is incinerated; The adsorption column was washed with hot water and reused.

Embodiment 3

[0041] (1) Filtration: filter the wastewater produced by the TATB nitrification reaction, collect the precipitate, wash to obtain nitrification wastewater; the pH of the nitrification wastewater is <0, the COD value is 672.7mg / L, and the phloroglucinol content is 0.73mg / ml;

[0042] (2) Adsorption: At 15°C, take 20ml (wet volume) X-5 resin and evenly fill it in the adsorption column In the process, 100ml of nitrification wastewater was added to the adsorption column filled with X-5 resin, and the wastewater was flowed through the adsorption column at a speed of 5BV / h, and the colorless effluent was collected. The COD value was 84.5mg / L, and the COD removal rate reached 87.44 %.

[0043] (3) Desorption: The X-5 resin after adsorption treatment is eluted with methanol, wherein the elution temperature is 45°C; the eluate after methanol elution is distilled to recover methanol, and the residue is incinerated; The adsorption column was washed with hot water and reused.

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Abstract

The invention discloses a treatment method of nitration wastewater in a TATB (triamino trinitrobenzene) production technique, belonging to the technical field of wastewater treatment by chemical techniques. The method comprises the following steps: filtering wastewater generated by TATB nitration, collecting the precipitate, and washing to obtain nitration wastewater; adding the nitration wastewater into an adsorption column filled with an ultrahighly-crosslinked adsorbent resin to adsorb phenol compounds in the wastewater onto the resin and obtain an effluent liquid, wherein the effluent liquid is treated nitration wastewater; and carrying out desorption treatment on the ultrahighly-crosslinked adsorbent resin for cyclic utilization. The treatment method of nitration wastewater implements cyclic utilization of 2,4,6-trinitrophloroglucin and acid liquor on the premise of enhancing the wastewater treatment effect, reduces the pollution, lowers the cost, and implements organic combination of wastewater treatment and resource recovery.

Description

technical field [0001] The invention relates to a treatment method for nitrification reaction waste water in a TATB production process, in particular to a three-step synthesis of 1,3,5-triamine- Treatment method of nitrification reaction waste liquid in 2,4,6-trinitrobenzene (TATB) production process Nitrification wastewater treatment, so that 2,4,6-trinitrophloroglucinol and reaction acid in the process wastewater can be obtained Recycling and recycling, realizing the treatment and resource utilization of TATB nitrification production process wastewater, belong to the technical field of chemical process wastewater treatment. Background technique [0002] TATB can be used in oil deep well perforating bullets and raw materials for making liquid crystal and electromagnetic materials. At present, the production process of TATB usually uses phloroglucinol as a raw material, and is synthesized in three steps of nitration, alkylation, and amination. Among them, the nitration reac...

Claims

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Application Information

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IPC IPC(8): C02F1/28
CPCC02F1/285C02F2103/36
Inventor 胡长文魏冰雪马承伟马灵初卢欢唱
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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