CN105060565B - A kind of technique of high-efficiency and economic processing J acid mother liquors - Google Patents
A kind of technique of high-efficiency and economic processing J acid mother liquors Download PDFInfo
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- CN105060565B CN105060565B CN201510509358.1A CN201510509358A CN105060565B CN 105060565 B CN105060565 B CN 105060565B CN 201510509358 A CN201510509358 A CN 201510509358A CN 105060565 B CN105060565 B CN 105060565B
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Abstract
The invention discloses a kind of handling process of processing J acid mother liquor high-efficiency and economics, this technique reduces the COD of J acid mother liquors with Fenton reagent catalysis oxidation, adds trioctylamine and is precipitated again after NaOH adjusts pH value, removes colourity.For J acid mother liquors after this PROCESS FOR TREATMENT, COD is less than 200 mg/L, and colourity is less than 4.This process economics, quick, efficiently, J acid mother liquors can be directly discharged into urban pipe network after processing, or through directly being discharged after 2 times of dilution.
Description
Technical field
It is specifically a kind of economical, quick, efficient the present invention relates to a kind of efficient treatment process of processing J acid mother liquors
The technique for handling J acid mother liquors.
Technical background
J acid is one of typical products of naphthalene series dye intermediate, and caused waste liquor contains a large amount of J acid in production process
And a small amount of aniline, for mother solution C OD up to 30000-50000 mg/L, colourity is big, in sauce black, and has strong impulse
Smell, it is poisonous to biology, belong to extremely intractable organic industrial sewage.J acid waste liquor typically uses organic solvent extraction and recovery J
Sour technique, still, recovery utilization rate is low, complex technical process, and after processing waste liquor still have higher colourity and
COD。
The content of the invention
The present invention be directed to current J acid waste liquor handling process efficiency is low, the problem of complex technical process, there is provided a kind of
Economy, fast and efficiently handling process.
Technical scheme is as follows：
A kind of technique of high-efficiency and economic processing J acid mother liquors, including following two steps：（1）Oxygen is catalyzed with Fenton reagent
Change and remove COD；（2）Trioctylamine is added, is precipitated after adjusting pH value with NaOH solution, reduces colourity.
Foregoing technique, preferable scheme are the steps（1）Removing COD with Fenton reagent catalysis oxidation is
Refer to：J acid mother liquors are taken, are diluted, pH value is adjusted with HCl solution, sequentially adds Fe in order2+Solution and H2O2, under static conditions
Catalysis oxidation J acid mother liquors.
Foregoing technique, preferable scheme are to take 100 mL J acid mother liquors, and 2-4 times is diluted to running water.
Foregoing technique, preferable scheme are to adjust pH value as 3-4 using 5 mol/L HCl solutions.
Foregoing technique, preferable scheme are to sequentially add the g/L Fe of 10 mL 20 in order2+Solution and 10-20
mL 30 % H2O2。
Foregoing technique, preferable scheme are that the reaction time is 1 h.
Foregoing technique, preferable scheme are the steps（2）Referred to NaOH solution regulation pH value：To through step
Suddenly（1）Trioctylamine is added in J acid mother liquors after processing, is stirred, it is 9 to add 5 mol/L NaOH solutions regulation pH value.
Foregoing technique, preferable scheme are the steps（2）After adjusting pH value with NaOH solution, stirred with magnetic
Mild agitation 3-10min（Preferably, with magnetic stirring mild agitation 5 min）.
Foregoing technique, preferable scheme are the steps（2）After abundant reaction, 25-40min is staticly settled
（It is preferred that staticly settle 30min）.
This technique is reduced the COD of J acid mother liquors, is added trioctylamine and adjusted again through NaOH with Fenton reagent catalytic oxidation technologies
Precipitated after section pH value, remove the colourity of J acid mother liquors.For J acid mother liquors after this PROCESS FOR TREATMENT, COD and colourity can all meet that city is managed
In line requirement is netted, or is directly discharged after diluting 2 times.
Beneficial effects of the present invention are：This method can economic, quick, efficient process J acid mother liquors.J acid mother liquors are by this
After PROCESS FOR TREATMENT, COD is less than 200 mg/L, and colourity is less than 4, can be directly discharged into urban pipe network, or after diluting 2 times directly outside
Row.
Embodiment
Below by embodiment, the invention will be further described, to help to be better understood from the present invention
Hold, but these embodiments are not in any way limit the scope of the present invention.
A kind of efficient treatment process of processing J acid mother liquors, takes the method to be（1）Removed with Fenton reagent catalysis oxidation
COD（2）Add after trioctylamine after adjusting pH value with NaOH solution and precipitate, reduce colourity.
（1）COD is removed with Fenton reagent catalysis oxidation
100 mL J acid mother liquors are taken, 2-4 times is diluted to running water, pH value is adjusted as 3-4 using 5 mol/L HCl solutions,
The g/L Fe of 10 mL 20 are sequentially added in order2+Solution and the % H of 10-20 mL 302O2, the catalysis oxidation J under static conditions
Acid mother liquor, reaction time are 1 h.
（2）Add after trioctylamine after adjusting pH value with NaOH solution and precipitate, reduce colourity
To through step（1）2-4 mL trioctylamines are added in J acid mother liquors after processing, stirs, adds 5 mol/L
NaOH solution regulation pH value is 9 or so, and the min of mild agitation 5 is stirred with magnetic, and 30 min are staticly settled after abundant reaction.
Embodiment 1
Certain enterprise produces dyestuff intermediate, and caused J acid mother liquors are in sauce black, and its COD is 45000 mg/L or so, is taken
100 mL mother liquors, 3 times are diluted, add the g/L Fe of 10 mL 202+Solution and the % H of 15 mL 302O2, it is catalyzed under static conditions
Aoxidize 1 h.When temperature is down to close to room temperature, 3 mL trioctylamines are added, are stirred, add 5 mol/L NaOH solutions tune
It is 9 or so to save pH value, and the min of mild agitation 5 is stirred with magnetic, and 30 min are staticly settled after abundant reaction.J acid after processing is female
Liquid COD is 179 mg/L, colourity 2.
Embodiment 2
Certain enterprise produces dyestuff intermediate, and caused J acid mother liquors are in sauce black, and its COD is 26000 mg/L or so, is diluted
2 times, add the g/L Fe of 10 mL 202+Solution and the % H of 15 mL 302O2, the h of catalysis oxidation 1 under static conditions.Treat temperature
When being down to close to room temperature, 2 mL trioctylamines are added, are stirred, it is 9 or so to add 5 mol/L NaOH solutions regulation pH value,
The min of mild agitation 5 is stirred with magnetic, 30 min are staticly settled after abundant reaction.J acid mother liquors COD after processing is 163 mg/
L, colourity 2.
Embodiment 3
Certain enterprise produces dyestuff intermediate, and caused J acid mother liquors are in sauce black, and its COD is 32000 mg/L or so, is diluted
3 times, add the g/L Fe of 10 mL 202+Solution and the % H of 17 mL 302O2, the h of catalysis oxidation 1 under static conditions.Treat temperature
When being down to close to room temperature, 2 mL trioctylamines are added, are stirred, it is 9 or so to add 5 mol/L NaOH solutions regulation pH value,
The min of mild agitation 5 is stirred with magnetic, 30 min are staticly settled after abundant reaction.J acid mother liquors COD after processing is 188 mg/
L, colourity 2.
The explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.To these embodiments
A variety of modifications are it will be apparent that generic principles defined herein can be not for those skilled in the art
Realized in other embodiments in the case of departing from the spirit or scope of the present invention.Therefore, the present invention is not intended to be limited to this
These embodiments shown in text, and it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (5)
1. a kind of technique of high-efficiency and economic processing J acid mother liquors, it is characterized in that, including following two steps：（1）With Fenton reagent
Catalysis oxidation removes COD；（2）Trioctylamine is added, is precipitated after adjusting pH value with NaOH solution, reduces colourity；
The step（1）COD is removed with Fenton reagent catalysis oxidation to refer to：J acid mother liquors are taken, are diluted, pH is adjusted with HCl solution
Value, sequentially adds the g/L Fe of 10 mL 20 in order2+Solution and the H of 10-20 mL 30%2O2, the catalysis oxidation under static conditions
J acid mother liquors；
The step（2）Referred to NaOH solution regulation pH value：To through step（1）Trioctylamine is added in J acid mother liquors after processing,
Stir, it is 9 to add 5 mol/L NaOH solutions regulation pH value；
The step（2）After adjusting pH value with NaOH solution, with magnetic stirring mild agitation 3-10 min；
The step（2）After abundant reaction, 25-40 min are staticly settled.
2. technique according to claim 1, it is characterized in that, 100 mL J acid mother liquors are taken, 2-4 times is diluted to running water.
3. technique according to claim 1, it is characterized in that, pH value is adjusted as 3-4 using 5 mol/L HCl solutions.
4. technique according to claim 1, it is characterized in that, the step（2）After adjusting pH value with NaOH solution, stirred with magnetic
Mix the min of mild agitation 5.
5. technique according to claim 1, it is characterized in that, the step（2）After adjusting pH value with NaOH solution, it is heavy to stand
Form sediment 30 min.
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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 true CN105060565B (en) | 2017-11-14 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101066824B (en) * | 2007-06-14 | 2010-10-27 | 南开大学 | Process of treating and reusing effluent from 1-amino-8-naphthol-3, 6-disulfonic acid production |
| CN101186402B (en) * | 2007-11-27 | 2011-06-01 | 华泰集团有限公司 | Fenton two-stage method oxidation processing technique for paper-making and pulping waste water |
| CN104190472B (en) * | 2014-08-22 | 2017-08-25 | 中国科学院生态环境研究中心 | A kind of new and effective multiphase Fenton catalyst Fe 3O4@EDTA preparation and application |
| 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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Effective date of registration: 20180919 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 Hunan Road 1, Dongchangfu District, Liaocheng, Shandong Patentee before: Liaocheng University |
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Effective date of registration: 20181213 Address after: 252059 Hunan Road 1, Dongchangfu District, Liaocheng, Shandong Patentee after: Liaocheng University Address before: 252000 Shandong Liaocheng high tech Zone the Yellow River Road South, Mount Lu Road East 1820 three storey western half Patentee before: Shandong chat Technology Co., Ltd. |
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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 |