CN1132725A - Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene - Google Patents
Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene Download PDFInfo
- Publication number
- CN1132725A CN1132725A CN 95117037 CN95117037A CN1132725A CN 1132725 A CN1132725 A CN 1132725A CN 95117037 CN95117037 CN 95117037 CN 95117037 A CN95117037 A CN 95117037A CN 1132725 A CN1132725 A CN 1132725A
- Authority
- CN
- China
- Prior art keywords
- nitrobenzene
- waste water
- chlorobenzene
- nitro
- benzene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 title claims abstract description 45
- BFCFYVKQTRLZHA-UHFFFAOYSA-N 1-chloro-2-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1Cl BFCFYVKQTRLZHA-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 title claims description 21
- 238000003672 processing method Methods 0.000 title claims 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 33
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 238000000605 extraction Methods 0.000 claims description 13
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 3
- 239000002699 waste material Substances 0.000 abstract 3
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 5
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- VEFXTGTZJOWDOF-UHFFFAOYSA-N benzene;hydrate Chemical compound O.C1=CC=CC=C1 VEFXTGTZJOWDOF-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- -1 nitryl chlorobenzene Chemical compound 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Extraction Or Liquid Replacement (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for treating waste liquid generated from production of nitrobenzene and nitrochlorobenzene with high effect includes addition of CCl4 or benzene to said waste liquid, oscillating sufficiently, standing for layering, and extracting with CCl4 or benzene in the same volume several times. Treated waste liquid does not contain nitrobenzene and nitrochlorobenzene.
Description
The present invention relates to the method for wastewater treatment that a kind of oil of mirbane and nitro-chlorobenzene are produced, belong to chemical technology field.
Nitrobenzene and nitro-chlorobenzene are important chemical industry base stocks, will go out one ton of waste water calculating by producing one ton of product, and will there be nearly 200,000 tons of discharge of wastewater every year in China in environment.Wherein organism is pressed minimum content calculating, wherein has 2500 tons of oil of mirbane and nitro-chlorobenzene to be discharged in the environment, and financial loss reaches 1,750 ten thousand yuan.And two kinds of organism all are huge poisonous substance matter, and the infringement that environment is caused is very big.Processing about waste water has the patent report, the patent No. is IT912,500, this patent proposes to produce the waste water benzene extraction of oil of mirbane, the waste water of producing nitro-chlorobenzene extracts with chlorobenzene, the content of extract can reduce one or two order of magnitude, but used benzene and chlorobenzene also has bigger solubleness in water, and separating effect has certain limitation in industrial popularization.Also useful n-butyl acetate and naphtha extraction, 94% nitro thing can extract.Although this method effect is all right, separating technology is more loaded down with trivial details owing to contain more water, when separating because azeotropic mixture is difficult to separation.
The objective of the invention is to design a kind of new process for producing nitrobenzene and the method for nitro-chlorobenzene waste water, as extractant, need not separate being directly used in reaction with the catalyst carbon tetrachloride of participating in reaction after the extraction, make treatment effect good and be easy to industrial applications.
The method of wastewater treatment that nitrobenzene of the present invention and nitro-chlorobenzene are produced, in waste water, to add any in carbon tetrachloride or the benzene, the adding volume ratio is waste water: carbon tetrachloride (or benzene)=1: 0.6-1.2, static layering after fully vibrating, divide carbon tetrachloride or the benzene used again behind the water-yielding stratum with the water equal volume to extract, extraction namely contains minute quantity nitrobenzene and nitro-chlorobenzene more than 3 times in the waste water.
Embodiments of the invention are:
Embodiment 1:
The waste water (nitrobenzene-containing 2300ppm) of getting the 30ml nitrobenzene-containing adds in the 100ml separating funnel, adds the 30ml tetracol phenixin again, fully leaves standstill 5 minutes after the vibration, divides water-yielding stratum, measures through the uv-absorbing instrument, and nitrobenzene is reduced to 300ppm.After same method extracted for the second time, the content of Nitrobenzene in Wastewater was to 150ppm.After three extractions, the content of oil of mirbane is reduced to 80ppm in the waste water.
Embodiment 2:
The waste water (nitrobenzene-containing 2300ppm) of getting the 30ml nitrobenzene-containing adds in the 100ml separating funnel, adds the extraction of 30ml benzene, fully leaves standstill 5 minutes after the vibration, divides water-yielding stratum, and nitrobenzene is 210ppm after measured.After benzene extracted for the second time, the content of Nitrobenzene in Wastewater was 90ppm.Change tetracol phenixin into and extract for the third time, the content of the oil of mirbane in the waste water of extraction back drops to 20ppm.
Embodiment 3:
Get synthesizing nitryl chlorobenzene waste water 20ml and add in the 100ml separating funnel, use the 20ml tetracol phenixin, after the extraction once, the content of nitro-chlorobenzene has 700ppm to drop to 60ppm in the waste water, uses the carbon tetrachloride extraction DeGrain again.
The method of wastewater treatment of the present invention's design adopts the catalyst carbon tetrachloride of reaction to make extractant.Need not separate after the extraction and be directly used in reaction.Because tetracol phenixin is the thing polar molecule, it is minimum that its solubleness in water reaches, and is far smaller than the polar N-BUTYL ACETATE.Extraction effect is also more satisfactory.Nitrobenzene is after extraction, and 96% nitrobenzene can reclaim, and 92% nitro-chlorobenzene can reclaim.
Claims (1)
1, the method for wastewater treatment of a kind of nitrobenzene and nitro-chlorobenzene production, it is characterized in that this processing method is to add any in carbon tetrachloride or the benzene in waste water, the adding volume ratio is waste water: carbon tetrachloride (or benzene)=1: 0.6-1.2, static layering after fully vibrating, divide carbon tetrachloride or the benzene used again behind the water-yielding stratum with the water equal volume to extract, extraction namely contains a small amount of nitrobenzene and nitro-chlorobenzene more than 3 times in the waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117037 CN1055902C (en) | 1995-10-20 | 1995-10-20 | Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117037 CN1055902C (en) | 1995-10-20 | 1995-10-20 | Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1132725A true CN1132725A (en) | 1996-10-09 |
| CN1055902C CN1055902C (en) | 2000-08-30 |
Family
ID=5081108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95117037 Expired - Fee Related CN1055902C (en) | 1995-10-20 | 1995-10-20 | Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055902C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312049C (en) * | 2004-11-12 | 2007-04-25 | 南京大学 | Method for separating and recovering nitro chlorobenzene from wastewater by using silanization modified zeolite |
| CN100417604C (en) * | 2004-12-22 | 2008-09-10 | 中国石化集团南京化学工业有限公司 | Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture |
| CN102295380A (en) * | 2011-08-19 | 2011-12-28 | 杭州江南科学研究院有限公司 | Processing and recovering method of aromatic nitro-compound wastewater |
| CN102836570A (en) * | 2012-09-19 | 2012-12-26 | 辽宁庆阳特种化工有限公司 | Extracting and separating method and device for waste acid generated in production procedure of m-dinitrobenzene |
| US9278876B2 (en) | 2010-10-27 | 2016-03-08 | Peking University | Treatment of waste product |
| CN107512810A (en) * | 2017-07-13 | 2017-12-26 | 安徽东至广信农化有限公司 | Method of wastewater treatment after a kind of nitro-chlorobenzene production |
-
1995
- 1995-10-20 CN CN 95117037 patent/CN1055902C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312049C (en) * | 2004-11-12 | 2007-04-25 | 南京大学 | Method for separating and recovering nitro chlorobenzene from wastewater by using silanization modified zeolite |
| CN100417604C (en) * | 2004-12-22 | 2008-09-10 | 中国石化集团南京化学工业有限公司 | Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture |
| US9278876B2 (en) | 2010-10-27 | 2016-03-08 | Peking University | Treatment of waste product |
| CN102295380A (en) * | 2011-08-19 | 2011-12-28 | 杭州江南科学研究院有限公司 | Processing and recovering method of aromatic nitro-compound wastewater |
| CN102836570A (en) * | 2012-09-19 | 2012-12-26 | 辽宁庆阳特种化工有限公司 | Extracting and separating method and device for waste acid generated in production procedure of m-dinitrobenzene |
| CN107512810A (en) * | 2017-07-13 | 2017-12-26 | 安徽东至广信农化有限公司 | Method of wastewater treatment after a kind of nitro-chlorobenzene production |
| CN107512810B (en) * | 2017-07-13 | 2021-04-16 | 安徽东至广信农化有限公司 | Method for treating wastewater generated after nitrochlorobenzene production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1055902C (en) | 2000-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110563253A (en) | treatment method of anisole organic wastewater | |
| CN110835297A (en) | Method for extracting multiple active substances from waste liquid of ginkgo leaf extract production | |
| CN1132725A (en) | Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene | |
| CN1911902A (en) | Extraction technology of capsanthin and capsicine | |
| CN110922376A (en) | Method for producing high-purity tetrahydrocannabinol by chromatography | |
| US8535625B2 (en) | Adsorbent and method of collecting precious metal using the same | |
| Vanni et al. | Powdered grape seeds (PGS) as an alternative biosorbent to remove pharmaceutical dyes from aqueous solutions | |
| US4661179A (en) | Destruction of waste explosive by hydrogenolysis | |
| JP4750787B2 (en) | Removal of propylene glycol and propylene glycol ether from aqueous liquid streams | |
| CN101053823A (en) | Poly (m-phenylene diamine) used as mercury ion adsorbent | |
| CN107698078B (en) | Pretreatment method and treatment system for explosive production wastewater | |
| CN101190893B (en) | System and method for purifying crude caprolactam water solution | |
| Wang et al. | Characterization of dissolved organic matter removal during biological treatment of commingled chemical industrial wastewater: relationship with fluorescent dissolved organic matter transformation | |
| US5849984A (en) | Method and system for treating waste nitrocellulose | |
| CN107445349A (en) | A kind of recycling processing method of gallic acid production wastewater | |
| CN100491347C (en) | Method of extracting garlicin from garlic deep-processing waste water and garlicin absorption resin for extracting garlicin | |
| CN104003910A (en) | Method for extracting m-phthalic acid-5-sodium sulfonate from ternary-monomer industrial waste water | |
| CN111393568A (en) | Tocopherol molecularly imprinted polymer, preparation method and application | |
| Gong et al. | Preparation and application of thiol wheat straw as sorbent for removing mercury ion from aqueous solution | |
| CN1600696A (en) | Nitrobenzene extraction method for treating aniline wastewater | |
| WO2002053269A1 (en) | Method of separating isotopes | |
| FR2667327A1 (en) | PROCESS FOR PURIFYING ALKYL PHOSPHATE SOLUTIONS IN A HYDROPHOBIC ORGANIC SOLVENT | |
| CN109368859B (en) | Zero-discharge treatment process for fluoride-applying wastewater in steroid drug production | |
| CN108484557B (en) | Method for extracting isofraxidin from acanthopanax senticosus | |
| CN106622163A (en) | Temperature sensitive urea formaldehyde resin, and preparation method and applications thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1021712 Country of ref document: HK |