CN104174295A - Phosphorus-free reverse osmosis scale inhibitor and preparation method thereof - Google Patents
Phosphorus-free reverse osmosis scale inhibitor and preparation method thereof Download PDFInfo
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- CN104174295A CN104174295A CN201410467673.8A CN201410467673A CN104174295A CN 104174295 A CN104174295 A CN 104174295A CN 201410467673 A CN201410467673 A CN 201410467673A CN 104174295 A CN104174295 A CN 104174295A
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Abstract
The invention provides a phosphorus-free reverse osmosis scale inhibitor and a preparation method thereof. The scale inhibitor is mainly prepared from raw materials such as maleic anhydride, hydrogen peroxide, isooctyl 3-mercaptopropionate and citric acid. By virtue of the phosphate-free reverse osmosis scale inhibitor, the problems that organophosphorus is used as a main material of the existing reverse osmosis scale inhibitor, the content of the phosphorus is high, thallose slime is easily generated and an reverse osmosis film is polluted in the prior art are solved; meanwhile, the problems that foreign products are used as main components of the reverse osmosis scale inhibitor, the treatment capability of the reverse osmosis scale inhibitor is limited, the reverse osmosis scale inhibitor is complexly synthesized and the production cost is relatively high in the prior art can be solved.
Description
Technical field
The invention belongs to reverse osmosis membrane water treatment field, relate to a kind of without phosphorus reverse osmosis antisludging agent.
Background technology
Can be realized sewage, waste water, salt water, seawater etc. are become to drinking water, water for industrial use, agricultural water, ecological water etc. by key technology desalinations such as film separation, reverse osmosis antisludging agent is a kind of normal product using of reverse osmosis membrane of safeguarding.Reverse osmosis antisludging agent is taking external product as main at present, and price is high, and reverse osmosis antisludging agent cost of the present invention is lower, for the entity and individual that use reverse osmosis antisludging agent have saved producing cost.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of without phosphorus reverse osmosis antisludging agent and preparation method thereof.
Without phosphorus reverse osmosis antisludging agent of the present invention is mainly prepared from by the raw material of following parts by weight: maleic anhydride 20-50 part, hydrogen peroxide 10-35 part, the different monooctyl ester 1-3 of 3-mercaptopropionic acid part, citric acid 10-30 part, vanadic anhydride 0.001-0.01 part, water 10-35 part.
Hydrogen peroxide of the present invention is the aqueous hydrogen peroxide solution of 27-35%.
The different monooctyl ester of 3-mercaptopropionic acid of the present invention is molecular weight regulator, reduces the molecular weight of polymer, and polymer viscosity is evenly distributed.Play catalyst, antioxidant simultaneously, improve the stability of polymer, extend the shelf-life of polymer.
Citric acid of the present invention is organic carboxyl acid, can precipitate metal ion, and make soil dispersion suspend, improve the performance of surfactant, prevent that reverse osmosis membrane is dirty stifled, be a kind of good chelating agent simultaneously.
Vanadic anhydride of the present invention is catalyst, improves polymer reaction speed, reduces the reaction time.
Water of the present invention is deionized water.
The preparation method of without phosphorus reverse osmosis antisludging agent of the present invention, mainly comprises the steps:
(1) clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
(2) feed intake: maleic anhydride, the different monooctyl ester of 3-mercaptopropionic acid, vanadic anhydride and part water are dropped in reactor, open and stir, stirring and dissolving is even;
(3) dissolve: by remaining water-soluble solution for citric acid;
(4) drip: when material in reactor is warming up to 80-100 DEG C, first drip hydrogen peroxide, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 3-4 hour controls reactor temperature 80-100 DEG C simultaneously;
(5) insulation: after hydrogen peroxide and citric acid solution dropwise, insulation 1.5-2 hour, temperature is controlled at 80-100 DEG C;
(6) after insulation finishes, be cooled to below 50 DEG C, stop stirring, blowing, filters and packages, and to obtain final product.
Step adds part water in (1), and those skilled in the art can add suitable quantity of water as required.
The invention solves existing reverse osmosis antisludging agent taking organophosphor as main, phosphorus content is high, easily produces the glutinous mud of bacterium algae, pollutes the problem of reverse osmosis membrane; And solve the problems such as in prior art, reverse osmosis antisludging agent is taking external product as main, and disposal ability is limited, synthetic complicated, and production cost is higher simultaneously.
Detailed description of the invention
Embodiment 1
1, clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
2, feed intake: maleic anhydride 400 ㎏, different monooctyl ester 2 ㎏ of 3-mercaptopropionic acid, vanadic anhydride 0.001 ㎏, water 200 ㎏ are dropped in reactor, open and stir, stirring and dissolving is even;
3, dissolve: citric acid 100 ㎏ are dissolved in 120 ㎏ water;
4, drip: when being warming up to 80 DEG C in reactor, first dripping 27.5% hydrogen peroxide 180 ㎏, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 3 hours is controlled 80 DEG C of reactor temperatures simultaneously;
5, insulation: after hydrogen peroxide and citric acid solution dropwise, be incubated 2 hours, temperature is controlled at 80 DEG C;
6, after insulation finishes, be cooled to 40 DEG C, stop stirring, blowing, filters and packages, and obtains without phosphorus reverse osmosis antisludging agent of the present invention, deposits in cool place and deposits wind place.
Embodiment 2
1, clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
2, feed intake: maleic anhydride 300 ㎏, different monooctyl ester 3 ㎏ of 3-mercaptopropionic acid, vanadic anhydride 0.005 ㎏, water 150 ㎏ are dropped in reactor, open and stir, stirring and dissolving is even;
3, dissolve: citric acid 300 ㎏ are dissolved in 220 ㎏ water;
4, drip: when being warming up to 100 DEG C in reactor, first dripping 27.5% hydrogen peroxide 100 ㎏, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 4 hours is controlled 100 DEG C of reactor temperatures simultaneously;
5, insulation: after hydrogen peroxide and citric acid solution dropwise, be incubated 1.5 hours, temperature is controlled at 100 DEG C;
6, after insulation finishes, be cooled to 45 DEG C, stop stirring, blowing, filters and packages, and obtains without phosphorus reverse osmosis antisludging agent of the present invention, deposits in cool place and deposits wind place.
Embodiment 3
1, clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
2, feed intake: maleic anhydride 500 ㎏, different monooctyl ester 1.2 ㎏ of 3-mercaptopropionic acid, vanadic anhydride 0.008 ㎏, water 200 ㎏ are dropped in reactor, open and stir, stirring and dissolving is even;
3, dissolve: citric acid 100 ㎏ are dissolved in 100 ㎏ water;
4, drip: when being warming up to 90 DEG C in reactor, first dripping 35% hydrogen peroxide 100 ㎏, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 3.5 hours is controlled 90 DEG C of reactor temperatures simultaneously;
5, insulation: after hydrogen peroxide and citric acid solution dropwise, be incubated 2 hours, temperature is controlled at 90 DEG C;
6, after insulation finishes, be cooled to 40 DEG C, stop stirring, blowing, filters and packages, and obtains without phosphorus reverse osmosis antisludging agent of the present invention, deposits in cool place and deposits wind place.
Embodiment 4
1, clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
2, feed intake: maleic anhydride 200 ㎏, different monooctyl ester 1.5 ㎏ of 3-mercaptopropionic acid, vanadic anhydride 0.01 ㎏, water 100 ㎏ are dropped in reactor, open and stir, stirring and dissolving is even;
3, dissolve: citric acid 200 ㎏ are dissolved in 150 ㎏ water;
4, drip: when being warming up to 95 DEG C in reactor, first dripping 27.5% hydrogen peroxide 350 ㎏, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 4 hours is controlled 95 DEG C of reactor temperatures simultaneously;
5, insulation: after hydrogen peroxide and citric acid solution dropwise, be incubated 2 hours, temperature is controlled at 95 DEG C;
6, after insulation finishes, be cooled to 48 DEG C, stop stirring, blowing, filters and packages, and obtains without phosphorus reverse osmosis antisludging agent of the present invention, deposits in cool place and deposits wind place.
Embodiment 5
1, clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
2, feed intake: maleic anhydride 250 ㎏, different monooctyl ester 2.5 ㎏ of 3-mercaptopropionic acid, vanadic anhydride 0.01 ㎏, water 200 ㎏ are dropped in reactor, open and stir, stirring and dissolving is even;
3, dissolve: citric acid 150 ㎏ are dissolved in 150 ㎏ water;
4, drip: when being warming up to 85 DEG C in reactor, first dripping 35% hydrogen peroxide 250 ㎏, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 3 hours is controlled 85 DEG C of reactor temperatures simultaneously;
5, insulation: after hydrogen peroxide and citric acid solution dropwise, be incubated 1.5 hours, temperature is controlled at 85 DEG C;
6, after insulation finishes, be cooled to 42 DEG C, stop stirring, blowing, filters and packages, and obtains without phosphorus reverse osmosis antisludging agent of the present invention, deposits in cool place and deposits wind place.
Claims (4)
1. a without phosphorus reverse osmosis antisludging agent, it is characterized in that, be mainly prepared from by the raw material of following parts by weight: maleic anhydride 20-50 part, hydrogen peroxide 10-35 part, the different monooctyl ester 1-3 of 3-mercaptopropionic acid part, citric acid 10-30 part, vanadic anhydride 0.001-0.01 part, water 10-35 part.
2. without phosphorus reverse osmosis antisludging agent as claimed in claim 1, is characterized in that the aqueous hydrogen peroxide solution that described hydrogen peroxide is 27-35%.
3. without phosphorus reverse osmosis antisludging agent as described in claim 1 or 2 any one, is characterized in that, its preparation method mainly comprises the steps:
(1) clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
(2) feed intake: maleic anhydride, the different monooctyl ester of 3-mercaptopropionic acid, vanadic anhydride and part water are dropped in reactor, open and stir, stirring and dissolving is even;
(3) dissolve: by remaining water-soluble solution for citric acid;
(4) drip: when material in reactor is warming up to 80-100 DEG C, first drip hydrogen peroxide, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 3-4 hour controls reactor temperature 80-100 DEG C simultaneously;
(5) insulation: after hydrogen peroxide and citric acid solution dropwise, insulation 1.5-2 hour, temperature is controlled at 80-100 DEG C;
(6) after insulation finishes, be cooled to below 50 DEG C, stop stirring, blowing, filters and packages, and to obtain final product.
4. the preparation method of without phosphorus reverse osmosis antisludging agent as described in claim 1 or 2 any one, is characterized in that, mainly comprises the steps:
(1) clean and dry reactor: after reactor is rinsed well, reactor is dried in heating;
(2) feed intake: maleic anhydride, the different monooctyl ester of 3-mercaptopropionic acid, vanadic anhydride and part water are dropped in reactor, open and stir, stirring and dissolving is even;
(3) dissolve: by remaining water-soluble solution for citric acid;
(4) drip: when material in reactor is warming up to 80-100 DEG C, first drip hydrogen peroxide, then drip citric acid solution, coutroi velocity drips off hydrogen peroxide and citric acid solution simultaneously, and time for adding 3-4 hour controls reactor temperature 80-100 DEG C simultaneously;
(5) insulation: after hydrogen peroxide and citric acid solution dropwise, insulation 1.5-2 hour, temperature is controlled at 80-100 DEG C;
(6) after insulation finishes, be cooled to below 50 DEG C, stop stirring, blowing, filters and packages, and to obtain final product.
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| CN201410467673.8A CN104174295A (en) | 2014-09-15 | 2014-09-15 | Phosphorus-free reverse osmosis scale inhibitor and preparation method thereof |
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| CN201410467673.8A CN104174295A (en) | 2014-09-15 | 2014-09-15 | Phosphorus-free reverse osmosis scale inhibitor and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126628A (en) * | 2015-08-26 | 2015-12-09 | 山东天庆科技发展有限公司 | Reverse osmosis scale inhibitor and preparation method therefor |
| CN105169954A (en) * | 2015-09-10 | 2015-12-23 | 韩功篑 | Reverse osmosis scale inhibitor for desalting seawater and preparation method thereof |
| CN107362691A (en) * | 2017-06-22 | 2017-11-21 | 山东英联化学科技有限公司 | Seawater desalination reverse osmosis film green research of non-phosphorus scale inhibitor and preparation method thereof |
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| US4654159A (en) * | 1985-06-24 | 1987-03-31 | The Procter & Gamble Company | Ether hydroxypolycarboxylate detergency builders |
| US5871691A (en) * | 1993-08-13 | 1999-02-16 | Betzdearborn Inc. | Inhibition of corrosion in aqueous systems |
| CN101041516A (en) * | 2007-03-16 | 2007-09-26 | 湖北省化学研究院 | Preparation method for highly effective maleic anhydride series polymer antisludging agent |
| CN101554565A (en) * | 2009-04-21 | 2009-10-14 | 李洪社 | Phosphorus-free reverse osmosis membrane antisludging agent and preparation method thereof |
| CN102358772A (en) * | 2011-09-19 | 2012-02-22 | 济南大学 | Preparation method of phosphorus-free green environment-friendly scale inhibitor |
| US20130180926A1 (en) * | 2011-07-22 | 2013-07-18 | Basf Se | Preparing maleic acid-isoprenol copolymers |
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2014
- 2014-09-15 CN CN201410467673.8A patent/CN104174295A/en active Pending
Patent Citations (6)
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| US4654159A (en) * | 1985-06-24 | 1987-03-31 | The Procter & Gamble Company | Ether hydroxypolycarboxylate detergency builders |
| US5871691A (en) * | 1993-08-13 | 1999-02-16 | Betzdearborn Inc. | Inhibition of corrosion in aqueous systems |
| CN101041516A (en) * | 2007-03-16 | 2007-09-26 | 湖北省化学研究院 | Preparation method for highly effective maleic anhydride series polymer antisludging agent |
| CN101554565A (en) * | 2009-04-21 | 2009-10-14 | 李洪社 | Phosphorus-free reverse osmosis membrane antisludging agent and preparation method thereof |
| US20130180926A1 (en) * | 2011-07-22 | 2013-07-18 | Basf Se | Preparing maleic acid-isoprenol copolymers |
| CN102358772A (en) * | 2011-09-19 | 2012-02-22 | 济南大学 | Preparation method of phosphorus-free green environment-friendly scale inhibitor |
Non-Patent Citations (2)
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| CHEN WANG,ETAL.: "Calcium carbonate inhibition by a phosphonate-terminated poly(maleic-co-sulfonate)polymeric inhibitor", 《DESALINATION》, vol. 249, 24 September 2009 (2009-09-24), pages 1 - 4, XP026699793, DOI: doi:10.1016/j.desal.2009.06.006 * |
| 宋彦梅: "绿色阻垢剂的研究现状及应用进展", 《工业水处理》, vol. 25, no. 9, 30 September 2005 (2005-09-30), pages 8 - 12 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126628A (en) * | 2015-08-26 | 2015-12-09 | 山东天庆科技发展有限公司 | Reverse osmosis scale inhibitor and preparation method therefor |
| CN105169954A (en) * | 2015-09-10 | 2015-12-23 | 韩功篑 | Reverse osmosis scale inhibitor for desalting seawater and preparation method thereof |
| CN107362691A (en) * | 2017-06-22 | 2017-11-21 | 山东英联化学科技有限公司 | Seawater desalination reverse osmosis film green research of non-phosphorus scale inhibitor and preparation method thereof |
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