Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 source, and low price. Its adsorption mostly belongs to steric effect and is not selective.
[0004] According to literature search at home and abroad, there is no economical and effective method for the treatment of nitrification wastewater.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com