CN108793553A - A kind of method of DMF Sewage treatments - Google Patents
A kind of method of DMF Sewage treatments Download PDFInfo
- Publication number
- CN108793553A CN108793553A CN201810590871.1A CN201810590871A CN108793553A CN 108793553 A CN108793553 A CN 108793553A CN 201810590871 A CN201810590871 A CN 201810590871A CN 108793553 A CN108793553 A CN 108793553A
- Authority
- CN
- China
- Prior art keywords
- dmf
- waste water
- water
- sec
- butyl phenol
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/04—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C233/05—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Removal Of Specific Substances (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a kind of methods of DMF wastewater treatments, are related to technical field of wastewater recovery.Treatment method is：During synthesizing Envidor, a large amount of DMF waste water is will produce, conventional processing method is usually to steam water, high energy consumption, investment is high, needs tower to detach DMF and water, and the DMF steamed is hardly consistent with technological requirement, DMF of the present invention in o-sec-butyl phenol extraction water, layering, water jacket is used, organic phase is recovered under reduced pressure, recycles DMF, residue is o-sec-butyl phenol, it applies mechanically, continues to extract；The major advantage of the method for the present invention is：It solves recycling DMF steamings water consumption height at present, invests high problem, have found a kind of small, the high method of organic efficiency of investment, and recycling DMF purity is high, can be applied in reaction.
Description
Technical field
The present invention relates to technical field of wastewater recovery, more particularly, to a kind of method of DMF Sewage treatments.
Background technology
DMF be dimethylformamide be both a kind of industrial chemicals that purposes is extremely wide and it is a kind of have many uses it is excellent molten
Agent.It can be used for the synthesis of the wet spinning silk, polyurethane of the synthetic fibers such as polyacrylonitrile fibre；Dimethylformamide is not only widely used as
The solvent of reaction and the important intermediate of organic synthesis.It can be used to produce Spanon in pesticide industry；It can be used in medical industry
In synthesis sulphadiazine, fortimicin, cortisone, vitamin B6, iodoxuridine, monopar, Pyrantel, N- N-foymylsarcolysins, resist
Tumor propylhomoserin, O-Methoxyl Sarcolysinum, Bian mustargen, lomustine, florafur, tranxamic acid, times point U.S. pine, megestrol acetate, courage dimension
He, chlorpheniramine etc..Dimethylformamide has catalytic action in the reaction for adding hydrogen, dehydrogenation, dehydration and dehydrohalogenation, makes anti-
Temperature is answered to reduce, product purity improves.
Water and DMF is separately recovered for rectifying in the method that prevailing technology uses at present, but distillation process high energy consumption and investment
It is larger.
Invention content
The technical problem to be solved by the present invention is to：Current distillation process high energy consumption is solved, investment is big, provides a kind of investment
It is small, the recovery method for the DMF waste water that low energy consumption.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of method of DMF wastewater treatments, it is characterised in that：DMF waste water is placed in flask, o-sec-butyl is added
Phenol stirs, and stands, and layering, DMF is extracted into organic phase, and the DMF in organic phase is recovered under reduced pressure, and remaining organic phase is adjacent secondary
Butylphenol continues to apply mechanically as extractant.
The method of the DMF wastewater treatments, it is characterised in that：Used waste water is the DMF for producing Envidor and generating
Waste water, but it is not limited only to this waste water.
The method of the DMF wastewater treatments, it is characterised in that：Waste water is 1 with o-sec-butyl phenol weight ratio:0.1-1,
It is preferred that 0.2.
The method of the DMF wastewater treatments, it is characterised in that：Waste water after extraction is applied to technique, using decompression
Mode recycles DMF, and the DMF of recycling can be applied to reaction.
The method of the DMF wastewater treatments, it is characterised in that：Recycling DMF residual organic substances are o-sec-butyl phenol, can
To be applied to next batch extraction.
The method of the DMF wastewater treatments, it is characterised in that：The waste water extracted can be applied in technique, as
Process water uses.
It is using advantageous effect caused by above-mentioned technical proposal：
1, present invention process is compared with traditional rectification process, and equipment is simple, and device therefor is all relatively common, equipment cost
The about one third of rectifying column.
2, rectificating method needs first to recycle water, then recycling DMF, high energy consumption, and by the method for extraction, water does not have to steam
It evaporates, directly applies mechanically, only need simple distillation, recycle DMF.
3, extraction efficiency is high, compared with the extraction of other organic solvents, only needs the 0.2 of water weight.
Specific implementation mode
The present invention will be further described in detail with reference to the specific embodiments.
Embodiment 1
By 150g DMF waste water (Envidor production generates waste water, contains DMF11%), it is added in reaction bulb, it is secondary that 15g neighbour is added
Butylphenol stirs 30min, stands 30min, and upper aqueous layer is applied mechanically as process water, and DMF contents are reduced to 2% by 11%, under
Layer organic phase recycles DMF13.5g, and residue is that o-sec-butyl phenol continues to apply mechanically.
Embodiment 2
By 150g DMF waste water (Envidor production generates waste water, contains DMF11%), it is added in reaction bulb, it is secondary that 30g neighbour is added
Butylphenol stirs 30min, stands 30min, and upper aqueous layer is applied mechanically as process water, and DMF contents are reduced to 0.2% by 11%,
Lower layer's organic phase recycles DMF16.2g, and residue is that o-sec-butyl phenol continues to apply mechanically.
Embodiment 3
By 150g DMF waste water (Envidor production generates waste water, contains DMF11%), it is added in reaction bulb, it is secondary that 50g neighbour is added
Butylphenol stirs 30min, stands 30min, and upper aqueous layer is applied mechanically as process water, and DMF contents are reduced to 0.2% by 11%,
Lower layer's organic phase recycles DMF16.1g, and residue is that o-sec-butyl phenol continues to apply mechanically.
Embodiment 4
By 150g DMF waste water (Envidor production generates waste water, contains DMF11%), it is added in reaction bulb, it is adjacent that 150g is added
Sec-butyl phenol stirs 30min, stands 30min, and upper aqueous layer is applied mechanically as process water, and DMF contents are reduced to by 11%
0.1%, lower layer's organic phase recycles DMF16g, and residue is that o-sec-butyl phenol continues to apply mechanically.
Embodiment 5
By 150g DMF waste water (Envidor production generates waste water, contains DMF11%), it is added in reaction bulb, it is primary that 30g is added
O-sec-butyl phenol is applied mechanically, 30min is stirred, stands 30min, upper aqueous layer is applied mechanically as process water, and DMF contents are reduced by 11%
To 0.2%, lower layer's organic phase recycles DMF16.1g, and residue is that o-sec-butyl phenol continues to apply mechanically.
Embodiment 6
By 150g DMF waste water (Envidor production generates waste water, contains DMF11%), it is added in reaction bulb, 30g is added bis- times
O-sec-butyl phenol is applied mechanically, 30min is stirred, stands 30min, upper aqueous layer is applied mechanically as process water, and DMF contents are reduced by 11%
To 0.1%, lower layer's organic phase recycles DMF15.9g, and residue is that o-sec-butyl phenol continues to apply mechanically.
Claims (6)
1. a kind of method of DMF wastewater treatments, it is characterised in that：DMF waste water is placed in flask, o-sec-butyl phenol is added,
Stirring is stood, and layering, DMF is extracted into organic phase, and the DMF in organic phase is recovered under reduced pressure, and remaining organic phase is o-sec-butyl
Phenol continues to apply mechanically as extractant.
2. the method for DMF wastewater treatments according to claim 1, it is characterised in that：Used waste water is production spiral shell mite
The DMF waste water that ester generates, but it is not limited only to this waste water.
3. the method for the DMF wastewater treatments according to right 1, it is characterised in that：Waste water is with o-sec-butyl phenol weight ratio
1:0.1-1, preferably 0.2.
4. the method for the DMF wastewater treatments according to right 1, it is characterised in that：Waste water after extraction is applied to technique, uses
The mode of decompression recycles DMF, and the DMF of recycling can be applied to reaction.
5. the method for the DMF wastewater treatments according to right 4, it is characterised in that：Recycling DMF residual organic substances are o-sec-butyl
Phenol can be applied to next batch extraction.
6. the method for DMF wastewater treatments according to claim 1, it is characterised in that：The waste water extracted can be applied to
In technique, used as process water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590871.1A CN108793553A (en) | 2018-06-09 | 2018-06-09 | A kind of method of DMF Sewage treatments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590871.1A CN108793553A (en) | 2018-06-09 | 2018-06-09 | A kind of method of DMF Sewage treatments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108793553A true CN108793553A (en) | 2018-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810590871.1A Pending CN108793553A (en) | 2018-06-09 | 2018-06-09 | A kind of method of DMF Sewage treatments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064222A (en) * | 2019-05-08 | 2019-07-30 | 河北德瑞化工有限公司 | A kind of extractant and the method using its processing Diacloden production waste water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003340441A (en) * | 2002-05-28 | 2003-12-02 | Teijin Ltd | Method for treating waste water containing n,n- dimethylformamide |
| CN1793111A (en) * | 2005-11-04 | 2006-06-28 | 清华大学 | Process for recovering dimethyl formyl amide from waste water |
| CN101555080A (en) * | 2009-05-12 | 2009-10-14 | 刘景峰 | Treatment method for waste water containing dimethyl formamide and treatment device |
-
2018
- 2018-06-09 CN CN201810590871.1A patent/CN108793553A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003340441A (en) * | 2002-05-28 | 2003-12-02 | Teijin Ltd | Method for treating waste water containing n,n- dimethylformamide |
| CN1793111A (en) * | 2005-11-04 | 2006-06-28 | 清华大学 | Process for recovering dimethyl formyl amide from waste water |
| CN101555080A (en) * | 2009-05-12 | 2009-10-14 | 刘景峰 | Treatment method for waste water containing dimethyl formamide and treatment device |
Non-Patent Citations (2)
| Title |
|---|
| LONG LIN等: "Mutual Solubilities for the Water−2-sec-Butylphenol System and Partition Coefficients for Furfural and Formic Acid in the Water−2-sec-Butylphenol System", 《JOURNAL OF CHEMICAL & ENGINEERING DATA》 * |
| 黎四芳等: "邻仲丁基苯酚萃取回收废水中二甲基甲酰胺", 《化学工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064222A (en) * | 2019-05-08 | 2019-07-30 | 河北德瑞化工有限公司 | A kind of extractant and the method using its processing Diacloden production waste water |
| CN110064222B (en) * | 2019-05-08 | 2021-09-28 | 河北德瑞化工有限公司 | Extracting agent and method for treating thiamethoxam production wastewater by using same |
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