CN105060565A - Technology for treating J acid mother liquor efficiently and economically - Google Patents
Technology for treating J acid mother liquor efficiently and economically Download PDFInfo
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- CN105060565A CN105060565A CN201510509358.1A CN201510509358A CN105060565A CN 105060565 A CN105060565 A CN 105060565A CN 201510509358 A CN201510509358 A CN 201510509358A CN 105060565 A CN105060565 A CN 105060565A
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Abstract
The invention discloses a technology for treating J acid mother liquor efficiently and economically. The technology comprises the steps of reducing the COD of the J acid mother liquor by taking a Fenton reagent for catalytic oxidation; adding trioctylamine; adjusting the pH value with NaOH; precipitating; removing chromaticity. Being treated according to the technology, the COD of the J acid mother liquor is smaller than 200 mg/L, and the chromaticity of the J acid mother liquor is smaller than 4. The technology is economical, fast and efficient. The J acid mother liquor treated according to the technology can be directly discharged into an urban pipe network, or directly discharged after being diluted by two times.
Description
Technical field
The present invention relates to a kind of efficient treatment process processing J acid mother liquor, specifically the technique of a kind of economy, quick, efficient process J acid mother liquor.
Technical background
J acid is one of typical products of naphthalene series dye intermediate, the waste liquor produced in production process contains a large amount of J acid and a small amount of aniline, mother solution C OD can reach 30000-50000mg/L, colourity is large, in sauce black, and there is strong impulse smell, poisonous to biology, belong to extremely unmanageable organic industrial sewage.J acid waste liquor generally adopts organic solvent extraction to reclaim J acid technique, but recovery utilization rate is low, complex technical process, and waste liquor still has higher colourity and COD after treatment.
Summary of the invention
The present invention be directed to current J acid waste liquor treatment process inefficiency, the problem of complex technical process, provides a kind of economy, fast and efficiently treatment process.
Technical scheme of the present invention is as follows:
A technique for efficient economy process J acid mother liquor, comprises following two steps: (1) removes COD with Fenton reagent catalyzed oxidation; (2) add trioctylamine, with NaOH solution adjust ph postprecipitation, reduce colourity.
Foregoing technique, preferred scheme is, described step (1) is removed COD with Fenton reagent catalyzed oxidation and referred to: get J acid mother liquor, and dilution, with HCl solution adjust ph, adds Fe in order successively
2+solution and H
2o
2, catalyzed oxidation J acid mother liquor under static conditions.
Foregoing technique, preferred scheme is, gets 100mLJ acid mother liquor, is diluted to 2-4 doubly with tap water.
Foregoing technique, preferred scheme is, with 5mol/LHCl solution adjust ph for 3-4.
Foregoing technique, preferred scheme adds 10mL20g/LFe successively in order
2+solution and 10-20mL30%H
2o
2.
Foregoing technique, preferred scheme is, the reaction times is 1h.
Foregoing technique, preferred scheme is, described step (2) refers to NaOH solution adjust ph: in the J acid mother liquor after step (1) process, add trioctylamine, stir, then to add 5mol/LNaOH solution adjust ph be 9.
Foregoing technique, preferred scheme is, described step (2), with after NaOH solution adjust ph, stirs mild agitation 3-10min(with magnetic preferred, stirs mild agitation 5min with magnetic).
Foregoing technique, preferred scheme is, described step (2), after fully reacting, staticly settles 25-40min(preferred, staticly settles 30min).
This technique, with Fenton reagent catalytic oxidation technologies, reduces the COD of J acid mother liquor, adds trioctylamine again through NaOH adjust ph postprecipitation, removes the colourity of J acid mother liquor.J acid mother liquor is after this art breading, and COD and colourity all can meet the in line requirement of urban pipe network, or directly discharge after diluting 2 times.
Beneficial effect of the present invention is: present method can economic, quick, efficient process J acid mother liquor.J acid mother liquor is after this art breading, and COD is less than 200mg/L, and colourity is less than 4, directly can enter urban pipe network, or directly arranges outward after diluting 2 times.
Embodiment
Below by embodiment, the invention will be further described, to help better to understand content of the present invention, but the protection domain that these embodiments do not limit the present invention in any way.
Process an efficient treatment process for J acid mother liquor, take method to be (1) with Fenton reagent catalyzed oxidation and remove COD(2) to add after trioctylamine with NaOH solution adjust ph postprecipitation, reduce colourity.
(1) COD is removed with Fenton reagent catalyzed oxidation
Get 100mLJ acid mother liquor, be diluted to 2-4 doubly with tap water, with 5mol/LHCl solution adjust ph for 3-4, add 10mL20g/LFe successively in order
2+solution and 10-20mL30%H
2o
2, catalyzed oxidation J acid mother liquor under static conditions, the reaction times is 1h.
(2) add with NaOH solution adjust ph postprecipitation after trioctylamine, reduce colourity
In the J acid mother liquor after step (1) process, add 2-4mL trioctylamine, stir, then to add 5mol/LNaOH solution adjust ph be about 9, stir mild agitation 5min with magnetic, after abundant reaction, staticly settle 30min.
embodiment 1
Certain enterprise produces dyestuff intermediate, and the J acid mother liquor of generation is sauce black, and its COD is about 45000mg/L, gets 100mL mother liquor, dilutes 3 times, adds 10mL20g/LFe
2+solution and 15mL30%H
2o
2, catalyzed oxidation 1h under static conditions.When temperature is down to close to room temperature, add 3mL trioctylamine, stir, then to add 5mol/LNaOH solution adjust ph be about 9, stir mild agitation 5min with magnetic, after abundant reaction, staticly settle 30min.J acid mother liquor COD after process is 179mg/L, and colourity is 2.
embodiment 2
Certain enterprise produces dyestuff intermediate, and the J acid mother liquor of generation is sauce black, and its COD is about 26000mg/L, dilutes 2 times, adds 10mL20g/LFe
2+solution and 15mL30%H
2o
2, catalyzed oxidation 1h under static conditions.When temperature is down to close to room temperature, add 2mL trioctylamine, stir, then to add 5mol/LNaOH solution adjust ph be about 9, stir mild agitation 5min with magnetic, after abundant reaction, staticly settle 30min.J acid mother liquor COD after process is 163mg/L, and colourity is 2.
embodiment 3
Certain enterprise produces dyestuff intermediate, and the J acid mother liquor of generation is sauce black, and its COD is about 32000mg/L, dilutes 3 times, adds 10mL20g/LFe
2+solution and 17mL30%H
2o
2, catalyzed oxidation 1h under static conditions.When temperature is down to close to room temperature, add 2mL trioctylamine, stir, then to add 5mol/LNaOH solution adjust ph be about 9, stir mild agitation 5min with magnetic, after abundant reaction, staticly settle 30min.J acid mother liquor COD after process is 188mg/L, and colourity is 2.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.Be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a technique for efficient economy process J acid mother liquor, is characterized in that, comprises following two steps: (1) removes COD with Fenton reagent catalyzed oxidation; (2) add trioctylamine, with NaOH solution adjust ph postprecipitation, reduce colourity.
2. technique according to claim 1, is characterized in that, described step (1) is removed COD with Fenton reagent catalyzed oxidation and referred to: get J acid mother liquor, and dilution, with HCl solution adjust ph, adds Fe in order successively
2+solution and H
2o
2, catalyzed oxidation J acid mother liquor under static conditions.
3. technique according to claim 2, is characterized in that, gets 100mLJ acid mother liquor, is diluted to 2-4 doubly with tap water.
4. technique according to claim 2, is characterized in that, with 5mol/LHCl solution adjust ph for 3-4.
5. technique according to claim 2, is characterized in that, adds 10mL20g/LFe successively in order
2+solution and 10-20mL30%H
2o
2.
6. technique according to claim 2, is characterized in that, the reaction times is 1h.
7. technique according to claim 1, is characterized in that, described step (2) refers to NaOH solution adjust ph: in the J acid mother liquor after step (1) process, add trioctylamine, stir, then to add 5mol/LNaOH solution adjust ph be 9.
8. technique according to claim 1, is characterized in that, described step (2), with after NaOH solution adjust ph, stirs mild agitation 3-10min(with magnetic preferred, stirs mild agitation 5min with magnetic).
9. technique according to claim 1, is characterized in that, described step (2), after fully reacting, staticly settles 25-40min(preferred, staticly settles 30min).
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| CN201510509358.1A CN105060565B (en) | 2015-08-19 | 2015-08-19 | A kind of technique of high-efficiency and economic processing J acid mother liquors |
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| CN201510509358.1A CN105060565B (en) | 2015-08-19 | 2015-08-19 | A kind of technique of high-efficiency and economic processing J acid mother liquors |
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| CN105060565B CN105060565B (en) | 2017-11-14 |
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Citations (4)
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|---|---|---|---|---|
| CN101066824A (en) * | 2007-06-14 | 2007-11-07 | 南开大学 | Process of treating and reusing effluent from 1-amino-8-naphthol-3, 6-disulfonic acid production |
| CN101186402A (en) * | 2007-11-27 | 2008-05-28 | 华泰集团有限公司 | Fenton two-stage method oxidation processing technique for paper-making pulping waste water |
| CN104190472A (en) * | 2014-08-22 | 2014-12-10 | 中国科学院生态环境研究中心 | Preparation and application of novel high-efficiency heterogeneous Fenton catalyst Fe3O4@EDTA |
| CN204111543U (en) * | 2014-10-27 | 2015-01-21 | 南京格洛特环境工程股份有限公司 | A kind of 2-Naphthol production wastewater treatment equipment |
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2015
- 2015-08-19 CN CN201510509358.1A patent/CN105060565B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066824A (en) * | 2007-06-14 | 2007-11-07 | 南开大学 | Process of treating and reusing effluent from 1-amino-8-naphthol-3, 6-disulfonic acid production |
| CN101186402A (en) * | 2007-11-27 | 2008-05-28 | 华泰集团有限公司 | Fenton two-stage method oxidation processing technique for paper-making pulping waste water |
| CN104190472A (en) * | 2014-08-22 | 2014-12-10 | 中国科学院生态环境研究中心 | Preparation and application of novel high-efficiency heterogeneous Fenton catalyst Fe3O4@EDTA |
| CN204111543U (en) * | 2014-10-27 | 2015-01-21 | 南京格洛特环境工程股份有限公司 | A kind of 2-Naphthol production wastewater treatment equipment |
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| 冯文国 等: "萘系染料中间体生产废水的治理方法", 《化工环保》 * |
| 张淑媛: "Fenton+混凝工艺预处理染料中间体废水的试验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 柴丽敏 等: "DSD酸氧化废水水处理技术研究进展", 《化学工业与工程》 * |
| 龙超 等: "芳香磺酸类有机化工废水处理研究进展", 《环境污染治理技术与设备》 * |
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Effective date of registration: 20210716 Address after: 252000 Shandong Liaocheng high tech Zone the Yellow River Road South, Mount Lu Road East 1820 three storey western half Patentee after: Shandong chat Technology Co.,Ltd. Address before: 252059 No. 1, Dongchangfu, Liaocheng District, Shandong, Hunan Road Patentee before: LIAOCHENG University |