CN101544409B - Method for concentrating and desalinating alkylphenol polyoxyethylene ether wastewater - Google Patents
Method for concentrating and desalinating alkylphenol polyoxyethylene ether wastewater Download PDFInfo
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- CN101544409B CN101544409B CN2009100982451A CN200910098245A CN101544409B CN 101544409 B CN101544409 B CN 101544409B CN 2009100982451 A CN2009100982451 A CN 2009100982451A CN 200910098245 A CN200910098245 A CN 200910098245A CN 101544409 B CN101544409 B CN 101544409B
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Abstract
The invention discloses a method for concentrating and desalinating alkylphenol polyoxyethylene ether wastewater, which comprises the following steps: 1) after heating dispersing poly(tetrafluoroethylene) latex wastewater containing alkylphenol polyoxyethylene ether to boil the waste water, standing the wastewater at 50 to 100 DEG C for 5 to 60 minutes, and collecting lower layer liquid which is a concentrated solution of the alkylphenol polyoxyethylene ether; and 2) mixing the concentrated solution of the alkylphenol polyoxyethylene ether with deionized water in a mass ratio of 0.2 to 5, heating the mixed solution to boil the mixed solution, standing the mixed solution at 50 to 100 DEG C for 5 to 60 minutes, and collecting lower layer liquid which is the concentrated and desalinated solution of the alkylphenol polyoxyethylene ether wastewater. The method is simple in process and high in yield, recovers the alkylphenol polyoxyethylene ether with low slat content, and meets the quality requirements for the production of PTFE dispersive latex.
Description
Technical field
The present invention relates to method for concentrating and desalinating, relate in particular to a kind of method for concentrating and desalinating of alkylphenol polyoxyethylene ether wastewater.
Background technology
Alkylphenol polyoxyethylene belongs to nonionogenic tenside, and chemical property is stable, has good hydrotropy, wetting, dispersion, emulsification, detergency ability, is a kind of widely used tensio-active agent, can use with various surfactants.As the actives of liquid washing agent, metal cleaner, the component of the finish of the levelling agent of textile industry, detergent, chemical fibre industry and the polymeric emulsifiers of resin etc. can be made the auxiliary agent of organic reaction in chemical industry.
In the PTFE dispersion emulsion was produced, the emulsion solid content increased substantially after the adding alkylphenol polyoxyethylene in the dispersion PTFE polymer fluid, and makes emulsion-stabilizing.The emulsions wastewater that produces in the dispersion PTFE polymer fluid concentration process contains alkylphenol polyoxyethylene and the low amounts of resin about 3%, this waste water lathering property is good, and biochemical is poor, and intractability is big, deposit and burn after now generally adopting directly discharging or evaporation concentration, not only contaminate environment but also waste resource.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of method for concentrating and desalinating of alkylphenol polyoxyethylene ether wastewater is provided.
The method of alkylphenol polyoxyethylene ether wastewater concentrating and desalinating is to contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, leaves standstill 5～60min under 50～110 ℃, collects lower floor's liquid and is the alkylphenol polyoxyethylene concentrated solution.
Described dwell temperature is 80～100 ℃, and time of repose is 10～30min.
The method of alkylphenol polyoxyethylene ether wastewater concentrating and desalinating comprises the steps:
1) will contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 50～100 ℃, leave standstill 5～60min, and collect lower floor's liquid and be the alkylphenol polyoxyethylene concentrated solution;
2) deionized water of alkylphenol polyoxyethylene concentrated solution with 0.2～5 mass ratio mixed, after the heated and boiled, under 50～100 ℃, leave standstill 5～60min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid.
Described dwell temperature is 80～100 ℃, and time of repose is 10～30min.Described alkylphenol polyoxyethylene concentrated solution mixes with the deionized water of 0.5～3 mass ratio.
The beneficial effect that the present invention compared with prior art has is:
1) the alkylphenol polyoxyethylene quality of Hui Shouing is good, and saltiness (specific conductivity) is low, can substitute the import alkylphenol polyoxyethylene in emulsion is produced and use prepared good emulsion stability;
2) cycles of concentration height.Cycles of concentration reaches more than 10 times;
3) organic efficiency height.The alkylphenol polyoxyethylene rate of recovery can be greater than 95%, can make the waste water COD content that reclaims after the alkylphenol polyoxyethylene reduce more than 95%;
4) concentrated cost is low.This invention has technology characteristics simple, easy and simple to handle, and energy consumption and working cost are low.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1
To contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 50 ℃, leave standstill 60min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 179.0g, alkylphenol polyoxyethylene content is 30.5%, specific conductivity 153.2 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.31%, the alkylphenol polyoxyethylene rate of recovery 90.7%, ratio of desalinization 78.9%.
Embodiment 2
To contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 100 ℃, leave standstill 5min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 134.2g, alkylphenol polyoxyethylene content is 43.9%, specific conductivity 105.9 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.12%, the alkylphenol polyoxyethylene rate of recovery 96.3%, ratio of desalinization 84.7%.
Embodiment 3
To contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 80 ℃, leave standstill 10min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 135.1g, alkylphenol polyoxyethylene content is 43.1%, specific conductivity 103.1 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.12%, the alkylphenol polyoxyethylene rate of recovery 96.0%, ratio of desalinization 85.5%.
Embodiment 4
To contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 100 ℃, leave standstill 30min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 132.6g, alkylphenol polyoxyethylene content is 44.1%, specific conductivity 103.1 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.11%, the alkylphenol polyoxyethylene rate of recovery 96.6%, ratio of desalinization 84.5%.
Embodiment 5
To contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 50 ℃, leave standstill 60min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 179.0g, alkylphenol polyoxyethylene content is 30.5%, specific conductivity 153.2 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.31%, the alkylphenol polyoxyethylene rate of recovery 90.7%, ratio of desalinization 78.9%.
2) the alkylphenol polyoxyethylene concentrated solution that makes is mixed with the deionized water of 0.2 mass ratio, after the heated and boiled, under 50 ℃, leave standstill 60min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid, alkylphenol polyoxyethylene content is 35.5%, specific conductivity 86.2 μ S/cm.
Embodiment 6
1) will contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 100 ℃, leave standstill 5min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 134.2g, alkylphenol polyoxyethylene content is 43.9%, specific conductivity 105.9 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.12%, the alkylphenol polyoxyethylene rate of recovery 96.3%, ratio of desalinization 84.7%;
2) the alkylphenol polyoxyethylene concentrated solution that makes is mixed with the deionized water of 5 mass ratioes, after the heated and boiled, under 100 ℃, leave standstill 60min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid, alkylphenol polyoxyethylene content is 38.5%, specific conductivity 22.2 μ S/cm.
Embodiment 7
1) will contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 80 ℃, leave standstill 10min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 135.1g, alkylphenol polyoxyethylene content is 43.1%, specific conductivity 103.1 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.12%, the alkylphenol polyoxyethylene rate of recovery 96.0%, ratio of desalinization 85.5%.
2) the alkylphenol polyoxyethylene concentrated solution that makes is mixed with the deionized water of 0.5 mass ratio, after the heated and boiled, under 80 ℃, leave standstill 10min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid, alkylphenol polyoxyethylene content is 44.5%, specific conductivity 42.3 μ S/cm.
Embodiment 8
1) will contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 100 ℃, leave standstill 30min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 132.6g, alkylphenol polyoxyethylene content is 44.1%, specific conductivity 103.1 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.11%, the alkylphenol polyoxyethylene rate of recovery 96.6%, ratio of desalinization 84.5%;
2) the alkylphenol polyoxyethylene concentrated solution that makes is mixed with the deionized water of 3 mass ratioes, after the heated and boiled, under 100 ℃, leave standstill 30min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid, alkylphenol polyoxyethylene content is 41.5%, specific conductivity 23.3 μ S/cm.
Embodiment 9
1) will contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 90 ℃, leave standstill 20min, collect lower floor's liquid and be alkylphenol polyoxyethylene concentrated solution 154.0g, alkylphenol polyoxyethylene content is 44.5%, specific conductivity 102.1 μ S/cm (containing alkylphenol polyoxyethylene 3% to be mixed with), supernatant liquid alkylphenol polyoxyethylene content 0.10%, the alkylphenol polyoxyethylene rate of recovery 97.4%, ratio of desalinization 85.8%;
2) the alkylphenol polyoxyethylene concentrated solution that makes is mixed with the deionized water of 1 mass ratio, after the heated and boiled, under 90 ℃, leave standstill 20min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid, alkylphenol polyoxyethylene content is 45.3%, specific conductivity 26.2 μ S/cm.
Claims (3)
1. the method for an alkylphenol polyoxyethylene ether wastewater concentrating and desalinating is characterized in that comprising the steps:
1) will contain alkylphenol polyoxyethylene dispersed polytetrafluoroethylresin emulsions wastewater, after the heated and boiled, under 50～100 ℃, leave standstill 5～60min, and collect lower floor's liquid and be the alkylphenol polyoxyethylene concentrated solution;
2) deionized water of alkylphenol polyoxyethylene concentrated solution with 0.2～5 mass ratio mixed, after the heated and boiled, under 50～100 ℃, leave standstill 5～60min, collect lower floor's liquid and be alkylphenol polyoxyethylene ether wastewater concentrating and desalinating liquid.
2. the method for a kind of alkylphenol polyoxyethylene ether wastewater concentrating and desalinating according to claim 1 is characterized in that described dwell temperature is 80～100 ℃, and time of repose is 10～30min.
3. the method for a kind of alkylphenol polyoxyethylene ether wastewater concentrating and desalinating according to claim 1 is characterized in that described alkylphenol polyoxyethylene concentrated solution mixes with the deionized water of 0.5～3 mass ratio.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006076446A2 (en) * | 2005-01-11 | 2006-07-20 | 3M Innovative Properties Company | Treatment of wastewater streams containing surfactants |
| CN1974431A (en) * | 2005-12-01 | 2007-06-06 | 栗田工业株式会社 | Water processing method containing surface active agent and processing device |
| CN101045592A (en) * | 2006-03-27 | 2007-10-03 | 栗田工业株式会社 | Treatment method for discharged water containing surfactant |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006076446A2 (en) * | 2005-01-11 | 2006-07-20 | 3M Innovative Properties Company | Treatment of wastewater streams containing surfactants |
| CN1974431A (en) * | 2005-12-01 | 2007-06-06 | 栗田工业株式会社 | Water processing method containing surface active agent and processing device |
| CN101045592A (en) * | 2006-03-27 | 2007-10-03 | 栗田工业株式会社 | Treatment method for discharged water containing surfactant |
Non-Patent Citations (1)
| Title |
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| 刘程等.表面活性剂应用手册.《表面活性剂应用手册》.1995,15-16. * |
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Owner name: JUSHENG FLUORINE CHEMISTRY CO LTD, ZHEJIANG Effective date: 20120418 |
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Effective date of registration: 20120418 Address after: 324004 Zhejiang Province, Quzhou City Kecheng District Juhua Central Avenue Co-patentee after: Jusheng Fluorine Chemistry Co., Ltd., Zhejiang Patentee after: Juhua Group Corp. Address before: 324004 Zhejiang Province, Quzhou City Kecheng District Juhua Central Avenue Patentee before: Juhua Group Corp. |