CN103787441A - Dicumyl peroxide reduction waste water treatment method - Google Patents
Dicumyl peroxide reduction waste water treatment method Download PDFInfo
- Publication number
- CN103787441A CN103787441A CN201210426208.0A CN201210426208A CN103787441A CN 103787441 A CN103787441 A CN 103787441A CN 201210426208 A CN201210426208 A CN 201210426208A CN 103787441 A CN103787441 A CN 103787441A
- Authority
- CN
- China
- Prior art keywords
- waste water
- dicumyl peroxide
- extraction
- reducing waste
- treatment process
- 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
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- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000004065 wastewater treatment Methods 0.000 title abstract description 5
- 239000002351 wastewater Substances 0.000 claims abstract description 61
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000000605 extraction Methods 0.000 claims abstract description 44
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 235000019445 benzyl alcohol Nutrition 0.000 claims abstract description 12
- 238000000622 liquid--liquid extraction Methods 0.000 claims abstract description 6
- 238000000638 solvent extraction Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 19
- JESIHYIJKKUWIS-UHFFFAOYSA-N 1-(4-Methylphenyl)ethanol Chemical compound CC(O)C1=CC=C(C)C=C1 JESIHYIJKKUWIS-UHFFFAOYSA-N 0.000 claims description 16
- 229960004217 benzyl alcohol Drugs 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims 2
- 230000005494 condensation Effects 0.000 claims 2
- 238000004064 recycling Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- MRIZMKJLUDDMHF-UHFFFAOYSA-N cumene;hydrogen peroxide Chemical compound OO.CC(C)C1=CC=CC=C1 MRIZMKJLUDDMHF-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 125000006182 dimethyl benzyl group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention relates to a dicumyl peroxide reduction waste water treatment method. The dicumyl peroxide reduction waste water treatment method comprises liquid-liquid extraction of dicumyl peroxide reduction waste water by isopropyl benzene as an extraction agent. Benzyl alcohol in the reduction waste water respectively has different solubility values in isopropyl benzene and water and according to the characteristic, benzyl alcohol in the reduction waste water is dissolved in isopropyl benzene so that reduction waste water separation is realized. Through extraction treatment, benzyl alcohol in the reduction waste water is recovered and COD in the discharged reduction waste water is reduced so that the treated waste water in a water treatment plant can be treated easily and a treatment cost is reduced.
Description
Technical field
The present invention relates to a kind for the treatment of process of dicumyl peroxide reducing waste water.
Background technology
Dicumyl peroxide (DCP) is a kind of organo-peroxide linking agent, the main linking agent as various olefin polymers and multipolymer (as polyethylene, chlorinatedpolyethylene, silicon rubber etc.), also can be used as the polymerization starter of polystyrene, or the solidifying agent of unsaturated polyester resin.After DCP is crosslinked, the physical properties of polymkeric substance is greatly improved, and its heat impedance, chemical resistant properties, resistance to pressure, splitting resistance and physical strength all increase to some extent.DCP is widely used in the industries such as electric wire, shoemaking, building materials.Along with the continuous expansion in macromolecular material market, the demand of DCP increases year by year in recent years, and market potential is huge.
Industrial production DCP is take isopropyl benzene as raw material, make it pass through oxidizing reaction Hydrogen Peroxide isopropyl benzene, and make part hydrogen phosphide cumene generate dimethyl benzyl alcohol by reduction reaction, then dimethyl benzyl alcohol and hydrogen phosphide cumene carry out condensation reaction generation DCP.In above-mentioned reduction reaction process and in reduced liquid washing process, can produce dicumyl peroxide reducing waste water.In DCP reducing waste water, contain the organic pollutant such as dimethyl benzyl alcohol, isopropyl benzene, show as comprehensive COD up to 14000-20000.Described waste water is very big to the pollution of environment, and aromatic ring is difficult to degraded.
In the prior art, generally in device, described reducing waste water is not processed, but the treatment plant of directly anhydrating processes.When DCP waste water directly anhydrates treatment plant's processing, cost is high, and difficulty is large, also has the problem that produces unpleasant hydrogen sulfide odor in sewage second-level biochemical treatment process simultaneously.Therefore in the urgent need to a kind of simple and easy to do DCP reducing waste water pretreatment process, to reduce intractability and the processing cost of water treatment plant.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides the low and simple dicumyl peroxide reducing waste water treatment process of a kind of cost.
Particularly, the invention provides a kind of dicumyl peroxide reducing waste water treatment process, being characterised in that of described method is that extraction agent carries out liquid-liquid extraction to dicumyl peroxide reducing waste water with isopropyl benzene.
In one embodiment of the invention, method of the present invention comprises the flow of controlling waste water and extraction agent, make waste water with extraction agent with volume ratio waste water: extraction agent=4-1:1, preferably 2:1 mixes, and obtains the step of mixed solution.
In yet another embodiment of the present invention, also comprise by the step that extraction agent carries out liquid-liquid extraction to dicumyl peroxide reducing waste water: make the mixed solution of waste water and extraction agent enter the first subsider, after separating, the reducing waste water of processing is gone out from bottom, and extraction liquid is gone out from top;
In yet another embodiment of the present invention, further comprise by the step that extraction agent carries out liquid-liquid extraction to dicumyl peroxide reducing waste water: make after mixing, to enter the second subsider from the reducing waste water of the processing of the first subsider bottom with the extraction liquid from the first subsider top, after separating, the reducing waste water of secondary treatment is gone out from bottom, and extraction liquid is gone out from top.
In yet another embodiment of the present invention, method of the present invention also comprises that the dimethyl benzyl alcohol content of controlling in final extraction liquid is not more than 18vol%, the step of 12-15vol% left and right preferably.
In yet another embodiment of the present invention, method of the present invention also comprises the step that reclaims isopropyl benzene and dimethyl benzyl alcohol by the rectifying of benzylalcohol tower.
In yet another embodiment of the present invention, method of the present invention also comprises step at least a portion extraction liquid is direct or that recycle after at least a portion benzylalcohol of isolating wherein.
The extraction of DCP reducing waste water is the Liquid-liquid Extraction Processes of take isopropyl benzene as solvent (extraction agent), it is this characteristic of different solubility of utilizing dimethyl benzyl alcohol in reducing waste water in isopropyl benzene extraction agent and in water, reach the benzylalcohol making in reducing waste water and be dissolved in isopropyl benzene, thus the object separating with reducing waste water.Isopropyl benzene and dimethyl benzyl alcohol reclaim by the rectifying of benzylalcohol tower.
In reducing waste water, contain dimethyl benzyl alcohol, have to recycle to be worth, beneficial to reducing product consumption.Its extracting power of increase with dimethylbenzyl determining alcohol in isopropyl benzene reduces, and now needs to supplement new isopropyl benzene or for example, removes by tripping device (benzylalcohol tower) dimethyl benzyl alcohol that at least a portion is dissolved.Can increase the rate of recovery of benzylalcohol by adjusting the ratio of reducing waste water and isopropyl benzene.
Method of the present invention has following beneficial effect
1, reclaim the benzylalcohol in reducing waste water, reduced the consumption of isopropyl benzene.
2, reduce the COD of reducing waste water discharge.
3, stripped waste water is easily processed in water treatment plant, and processing cost is low.
Embodiment
Further illustrate method of the present invention with specific embodiment below.
embodiment 1
Make extraction agent with isopropyl benzene; Control the flow of waste water and extraction agent, make waste water and extraction agent with volume ratio waste water: isopropyl benzene=2:1 mixes, and obtains mixed solution; Make above-mentioned mixed solution enter the first subsider, after separating, the reducing waste water of processing is gone out from bottom, and extraction liquid is gone out from top; Make after again mixing, to enter the second subsider from the reducing waste water of the first subsider bottom with the extraction liquid from the first subsider top, after the second subsider separates, the reducing waste water of processing is gone out from bottom, and extraction liquid is gone out from top; The dimethyl benzyl alcohol content of controlling respectively in final extraction liquid is up to 18vol%, 15vol% and 12vol%, once arrive described content, supplement immediately fresh isopropyl benzene or use benzylalcohol tower and remove at least a portion dimethyl benzyl alcohol in extraction liquid, extraction liquid recycles.COD changing conditions before and after extraction is as following table 1:
Table 1: the COD before and after extraction in DCP reducing waste water changes
| Sequence number | Dimethyl benzyl alcohol in extraction liquid | The extraction COD(mg/L of ingress) | Extraction exit COD(mg/L) |
| 1 | <18vol% | 17600 | 12050 |
| 2 | <15vol% | 16950 | 12400 |
| 3 | <12vol% | 14300 | 10900 |
From the data that detect, the COD emission concentration in DCP reducing waste water has larger decline.Therefore, while further processing in water treatment plant, difficulty reduces, and has also reduced processing cost simultaneously.
Claims (9)
1. a treatment process for dicumyl peroxide reducing waste water, is characterized in that: as extraction agent, dicumyl peroxide reducing waste water is carried out to liquid-liquid extraction with isopropyl benzene.
2. the treatment process of dicumyl peroxide reducing waste water according to claim 1, described method comprises the flow of controlling waste water and extraction agent, makes waste water and extraction agent with volume ratio waste water: extraction agent=4-1:1 mixes, and obtains the step of mixed solution.
3. the treatment process of dicumyl peroxide reducing waste water according to claim 2, wherein the volume ratio of waste water and extraction agent is waste water: extraction agent=2:1.
4. according to the treatment process of the dicumyl peroxide condensation waste water described in claim 2 or 3, described method comprises makes the mixed solution of waste water and extraction agent enter the first subsider, after the first subsider separates, the reducing waste water of processing is gone out from bottom, the step that extraction liquid is gone out from top.
5. the treatment process of dicumyl peroxide condensation waste water according to claim 4, described method further comprises: make after mixing, to enter the second subsider from the reducing waste water of the processing of the first subsider bottom with the extraction liquid from the first subsider top, after the second subsider separates, the reducing waste water of secondary treatment is gone out from bottom, and extraction liquid is gone out from top.
6. according to the treatment process of the dicumyl peroxide reducing waste water described in claim 1,2 or 5, described method also comprises that the dimethyl benzyl alcohol content of controlling in final extraction liquid is not more than the step of 18vol%.
7. the treatment process of dicumyl peroxide reducing waste water according to claim 7, wherein controls dimethyl benzyl alcohol content in final extraction liquid in 12-15vol% left and right.
8. according to the treatment process of the dicumyl peroxide reducing waste water described in claim 1,2,5 or 7, wherein said method also comprises the step that reclaims isopropyl benzene and dimethyl benzyl alcohol by the rectifying of benzylalcohol tower.
9. according to the treatment process of the dicumyl peroxide reducing waste water described in claim 1,2,5 or 7, wherein said method also comprises by least a portion extraction liquid directly and/or the step recycling after isolating at least a portion dimethyl benzyl alcohol wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426208.0A CN103787441B (en) | 2012-10-31 | 2012-10-31 | The processing method of cumyl peroxide reducing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426208.0A CN103787441B (en) | 2012-10-31 | 2012-10-31 | The processing method of cumyl peroxide reducing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103787441A true CN103787441A (en) | 2014-05-14 |
| CN103787441B CN103787441B (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210426208.0A Active CN103787441B (en) | 2012-10-31 | 2012-10-31 | The processing method of cumyl peroxide reducing waste water |
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| Country | Link |
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| CN (1) | CN103787441B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910059A (en) * | 2015-05-07 | 2015-09-16 | 中石化上海工程有限公司 | Dicumyl peroxide (DCP) apparatus circulating mother liquor recovery method |
| CN108203183A (en) * | 2018-01-23 | 2018-06-26 | 孙国芳 | A kind of sewage pretreatment device and processing method |
| CN114634401A (en) * | 2020-12-15 | 2022-06-17 | 中国石油化工股份有限公司 | Method for pretreating raw material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1247313B (en) * | 1959-06-24 | 1967-08-17 | Hibernia Ag | Process for the production of diisopropylbenzene dihydroperoxides |
| CN1289725A (en) * | 2000-10-13 | 2001-04-04 | 清华大学 | Process for pre-treating waste liquid of p-benzoic acid by complexing and extraction |
-
2012
- 2012-10-31 CN CN201210426208.0A patent/CN103787441B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1247313B (en) * | 1959-06-24 | 1967-08-17 | Hibernia Ag | Process for the production of diisopropylbenzene dihydroperoxides |
| CN1289725A (en) * | 2000-10-13 | 2001-04-04 | 清华大学 | Process for pre-treating waste liquid of p-benzoic acid by complexing and extraction |
Non-Patent Citations (1)
| Title |
|---|
| 居寿祥 等: "含酚废水萃取中的反乳化", 《化学世界》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910059A (en) * | 2015-05-07 | 2015-09-16 | 中石化上海工程有限公司 | Dicumyl peroxide (DCP) apparatus circulating mother liquor recovery method |
| CN108203183A (en) * | 2018-01-23 | 2018-06-26 | 孙国芳 | A kind of sewage pretreatment device and processing method |
| CN114634401A (en) * | 2020-12-15 | 2022-06-17 | 中国石油化工股份有限公司 | Method for pretreating raw material |
| CN114634401B (en) * | 2020-12-15 | 2024-05-28 | 中国石油化工股份有限公司 | Method for pretreating raw materials |
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| Publication number | Publication date |
|---|---|
| CN103787441B (en) | 2016-06-15 |
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