CN106669429A - Phosphate-free scale inhibitor for reverse osmosis membrane - Google Patents
Phosphate-free scale inhibitor for reverse osmosis membrane Download PDFInfo
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- CN106669429A CN106669429A CN201611200541.4A CN201611200541A CN106669429A CN 106669429 A CN106669429 A CN 106669429A CN 201611200541 A CN201611200541 A CN 201611200541A CN 106669429 A CN106669429 A CN 106669429A
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- reverse osmosis
- scale inhibitor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/162—Use of acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/168—Use of other chemical agents
Abstract
The invention discloses a phosphate-free scale inhibitor for a reverse osmosis membrane. The phosphate-free scale inhibitor is prepared from the following components in parts by weight: 5 to 9 parts of 2-hydroxy-phosphonoacetic acid, 8 to 13 parts of hydrolytic polymaleic anhydride, 6 to 11 parts of polyphosphonyl carboxylic acid copolymer, 2 to 6 parts of potassium peroxodisulfate and 60 to 80 parts of distilled water. The invention provides the phosphate-free scale inhibitor for the reverse osmosis membrane, which has the characteristic of stable performance; according to the phosphate-free scale inhibitor, scaling is blocked off, the scaling risk of the membrane is effectively reduced, the service life of the membrane is prolonged, and cleaning times of the membrane are reduced.
Description
Technical field
The present invention relates to technical field of chemistry, more particularly to a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane.
Background technology
Counter-infiltration system be by raw water through fine filter, granular activated carbon filter, extruded activated carbon filter etc.,
Pressurizeed by pump again, using aperture be 1/10000 μm (equivalent to the 1/6000 of escherichia coli size, 1/300) anti-of virus
Permeable membrane (RO films), the water for making higher concentration is changed into low concentration of water, while industrial soil, heavy metal, antibacterial, virus etc. is a large amount of
Be mixed into impurity in water all to isolate, so as to reach the physical and chemical index and sanitary standard of drinking regulation, output to clear to pure water,
It is optimum selection that human body supplements in time high-quality moisture content.At present in all controlling the water circulation technologies that people grasp, by RO reverse osmosiss skills
The water degree of purity highest of art production, cleanliness factor nearly reaches 100%.
Reverse osmosis membrane is the key equipment of counter-infiltration system, when system long-time is continuously run, calcium and magnesium plasma meeting in water
Constantly separate out and in reverse osmosis membrane surface attachment, form fouling and clogging fenestra, can so affect the water outlet efficiency of counter-infiltration system,
Damage reverse osmosis membrane.Due to reverse osmosis membrane costly, so in system operation, to increase by one section of medicine system, in water
Reverse osmosis antisludging agent is added, delays the precipitation and face fouling of calcium ions and magnesium ions.
Reverse osmosis antisludging agent is used exclusively for the antisludging agent of reverse osmosiss (RO) system and nanofiltration (NF) and ultrafiltration (UF) system,
Face fouling can be prevented, aquifer yield can be improved and water quality is produced, reduce operating cost.
At present, organophosphors composite scale agent mostly is using antisludging agent on counter-infiltration system, phosphorus is the battalion of antibacterial and algae
Foster source, can provide antibacterial and the phosphorous nutrient substance needed for growth of microorganism, so as to cause membranous system to the inside of counter-infiltration system
There is the exceeded hidden danger of biological pollution and antibacterial；And easily react and cause in film with the ion in water containing Phosphorus antisludging agent
Calcium phosphate precipitation pollution is produced on element；Three be the phosphorus contained in water with concentrated water discharge, environmental water systemses are polluted.Therefore,
The without phosphorus novel green reverse osmosis membrane antisludging agent of exploitation has become the developing direction of reverse osmosis membrane antisludging agent, is the difficulty of current research
Point.At present based on external product, the reverse osmosiss research of non-phosphorus scale inhibitor raw material of the present invention is easy to get without phosphorus reverse osmosis antisludging agent, produces work
Skill is simple, and cost is relatively low, produces preferable Social benefit and economic benefit.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane.
The present invention proposes a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, and component is 2- hydroxyls-phosphine acyl acetic acid, hydrolyzes and gather
Maleic anhydride, potassium peroxydisulfate and water.
Preferably, the component is in parts by weight 2- hydroxyls-phosphine acyl acetic acid 5-9 parts, hydrolytic polymaleic anhydride 8-
13 parts, potassium peroxydisulfate 2-6 parts, distilled water 60-80 parts.
Preferably, the component also includes poly- copolymer of phosphono carboxylic acid, and parts by weight are 6-11 parts.
Preferably, the component in parts by weight for 2- hydroxyls -7 parts of phosphine acyl acetic acid, 10 parts of hydrolytic polymaleic anhydride,
70 parts of 9 parts of poly- copolymer of phosphono carboxylic acid, 4 parts of potassium peroxydisulfate and distilled water.
A kind of preparation method of the research of non-phosphorus scale inhibitor for reverse osmosis membrane, method and step is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number
In reactor, after stirring 30min, with 5 DEG C/min 40-45 DEG C is gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 65-70 DEG C is gradually heating to, be stirred for after temperature stabilization
30min；
S4：After stirring terminates in S3, insulation 3-5h gets product.
Preferably, the mixing speed of the reactor is 300-400r/min.
Action principle of the present invention：
The reverse osmosiss research of non-phosphorus scale inhibitor of the present invention contains the macromolecular compound of macromolecular chain, due to electrostatic repulsion, solubilising
With the presence of distortion of lattice effect, there is preferable dispersing and dissolving ability to various inorganic scales and colloid dirt, indissoluble can be separated into
The difficulty soluble salt microgranule of salt nucleus of crystal, reduces or controls the aggregation fouling of difficulty soluble salt, moreover it is possible to make the crystal generation lattice of deposition abnormal
Become, the purpose of scale inhibition is reached, for preventing Calcium Carbonate, silicate, sulfate and phosphate dirt deposition.2- hydroxyls-phosphono second
Acid, can biodegradation, and with sequestration and dispersion etc. function；Poly- copolymer of phosphono carboxylic acid has chela to many kinds of metal ions
Cooperation is used, and biological degradability is good, environmental protection.
Compared with prior art, the device have the advantages that being：
The present invention provides a kind of reverse osmosiss research of non-phosphorus scale inhibitor, and its stable performance blocks fouling, effectively reduces film fouling wind
Danger, prolonging service lifetime of film reduces Membrane cleaning number of times.
Specific embodiment
The present invention proposes a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane.With reference to specific embodiment the present invention is made into
One step explanation.
Embodiment 1
A kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, the component hydroxyls of 2- by weight -5 parts of phosphine acyl acetic acid, hydrolysis
8 parts of polymaleic anhydride, 6 parts of poly- copolymer of phosphono carboxylic acid, 2 parts of potassium peroxydisulfate, 60 parts of distilled water.
Preparation method is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number
In reactor, after stirring 30min, with 5 DEG C/min 40 DEG C are gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 65 DEG C are gradually heating to, 30min is stirred for after temperature stabilization；
S4：After stirring terminates in S3, insulation 3h gets product.
The mixing speed of reactor is 300r/min.
Embodiment 2
A kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, the component hydroxyls of 2- by weight -7 parts of phosphine acyl acetic acid, hydrolysis
10 parts of polymaleic anhydride, 9 parts of poly- copolymer of phosphono carboxylic acid, 4 parts of potassium peroxydisulfate, 70 parts of distilled water.
Preparation method is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number
In reactor, after stirring 30min, with 5 DEG C/min 43 DEG C are gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 67 DEG C are gradually heating to, 30min is stirred for after temperature stabilization；
S4：After stirring terminates in S3, insulation 4h gets product.
The mixing speed of reactor is 350r/min.
Embodiment 3
A kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, the component hydroxyls of 2- by weight -9 parts of phosphine acyl acetic acid, hydrolysis
13 parts of polymaleic anhydride, 11 parts of poly- copolymer of phosphono carboxylic acid, 6 parts of potassium peroxydisulfate, 80 parts of distilled water.
Preparation method is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number
In reactor, after stirring 30min, with 5 DEG C/min 45 DEG C are gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 70 DEG C are gradually heating to, 30min is stirred for after temperature stabilization；
S4：After stirring terminates in S3, insulation 5h gets product.
The mixing speed of reactor is 400r/min.
Embodiment 4
A kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, the component hydroxyls of 2- by weight -6 parts of phosphine acyl acetic acid, hydrolysis
9 parts of polymaleic anhydride, 10 parts of poly- copolymer of phosphono carboxylic acid, 5 parts of potassium peroxydisulfate, 75 parts of distilled water.
Preparation method is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number
In reactor, after stirring 30min, with 5 DEG C/min 44 DEG C are gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 68 DEG C are gradually heating to, 30min is stirred for after temperature stabilization；
S4：After stirring terminates in S3, insulation 4h gets product.
The mixing speed of reactor is 320r/min.
Embodiment 5
A kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, the component hydroxyls of 2- by weight -8 parts of phosphine acyl acetic acid, hydrolysis
12 parts of polymaleic anhydride, 7 parts of poly- copolymer of phosphono carboxylic acid, 3 parts of potassium peroxydisulfate, 65 parts of distilled water.
Preparation method is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number
In reactor, after stirring 30min, with 5 DEG C/min 41 DEG C are gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 69 DEG C are gradually heating to, 30min is stirred for after temperature stabilization；
S4：After stirring terminates in S3, insulation 3h gets product.
The mixing speed of reactor is 370r/min.
Properties of product are tested
Do experiment in small reverse osmosis system, the cycle is 20 days, at identical conditions, commercially available reverse osmosiss is added respectively
Scale inhibitor special and embodiment 1, embodiment 2, the product of the gained of embodiment 3, test result indicate that：Reality is added in process of the test
The equal normal operation of counter-infiltration system of example 1, embodiment 2, the products obtained therefrom of embodiment 3 is applied, reverse osmosis membrane is split out into observation can find,
Trickle scale forming matter is found in the film for adding commercially available reverse osmosiss scale inhibitor special, and adds embodiment 1, embodiment 2, embodiment
Scale formation is not found in the reverse osmosis membrane of 3 products obtained therefroms.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (6)
1. a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane, it is characterised in that component is that 2- hydroxyls-phosphine acyl acetic acid, hydrolysis are poly-
Maleic anhydride, potassium peroxydisulfate and water.
2. a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane according to claim 1, it is characterised in that the component according to
Weight portion is calculated as 2- hydroxyls-phosphine acyl acetic acid 5-9 parts, hydrolytic polymaleic anhydride 8-13 part, potassium peroxydisulfate 2-6 parts, distilled water 60-
80 parts.
3. a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane according to claim 1, it is characterised in that the component is also wrapped
Poly- copolymer of phosphono carboxylic acid is included, parts by weight are 6-11 parts.
4. a kind of research of non-phosphorus scale inhibitor for reverse osmosis membrane according to claims 1 to 3, it is characterised in that the component
In parts by weight for 2- hydroxyls -7 parts of phosphine acyl acetic acid, 10 parts of hydrolytic polymaleic anhydride, 9 parts of poly- copolymer of phosphono carboxylic acid,
70 parts of 4 parts of potassium peroxydisulfate and distilled water.
5. a kind of preparation method of research of non-phosphorus scale inhibitor for reverse osmosis membrane according to claims 1 to 4, its feature exists
In method and step is as follows：
S1：2- hydroxyls-phosphine acyl acetic acid, hydrolytic polymaleic anhydride, poly- copolymer of phosphono carboxylic acid are added according to number and reacted
In kettle, after stirring 30min, with 5 DEG C/min 40-45 DEG C is gradually heating to；
S2：Potassium peroxydisulfate is added after temperature stabilization in S1, it is thick to stir to liquid；
S3：Distilled water is added in S2, with 5 DEG C/min 65-70 DEG C is gradually heating to, 30min is stirred for after temperature stabilization；
S4：After stirring terminates in S3, insulation 3-5h gets product.
6. a kind of preparation method of research of non-phosphorus scale inhibitor for reverse osmosis membrane according to claim 5, it is characterised in that institute
The mixing speed for stating reactor is 300-400r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200541.4A CN106669429A (en) | 2016-12-22 | 2016-12-22 | Phosphate-free scale inhibitor for reverse osmosis membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200541.4A CN106669429A (en) | 2016-12-22 | 2016-12-22 | Phosphate-free scale inhibitor for reverse osmosis membrane |
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| CN106669429A true CN106669429A (en) | 2017-05-17 |
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| CN201611200541.4A Pending CN106669429A (en) | 2016-12-22 | 2016-12-22 | Phosphate-free scale inhibitor for reverse osmosis membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321190A (en) * | 2017-05-31 | 2017-11-07 | 四川奥恒环保科技有限公司 | A kind of reverse osmosis membrane antisludging agent and preparation method thereof |
Citations (3)
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|---|---|---|---|---|
| CN104609578A (en) * | 2013-11-01 | 2015-05-13 | 湖州欧美新材料有限公司 | Multi-component corrosion and scale inhibitor |
| 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 |
| CN105366822A (en) * | 2014-08-29 | 2016-03-02 | 中国石油化工股份有限公司 | Low-phosphorous corrosion and scale inhibitor composition, low-phosphorous corrosion and scale inhibitor and application thereof |
-
2016
- 2016-12-22 CN CN201611200541.4A patent/CN106669429A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609578A (en) * | 2013-11-01 | 2015-05-13 | 湖州欧美新材料有限公司 | Multi-component corrosion and scale inhibitor |
| CN105366822A (en) * | 2014-08-29 | 2016-03-02 | 中国石油化工股份有限公司 | Low-phosphorous corrosion and scale inhibitor composition, low-phosphorous corrosion and scale inhibitor and application thereof |
| 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 |
Non-Patent Citations (1)
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| 张玉龙等: "《水处理剂配方设计与实例》", 31 May 2011, 中国纺织出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321190A (en) * | 2017-05-31 | 2017-11-07 | 四川奥恒环保科技有限公司 | A kind of reverse osmosis membrane antisludging agent and preparation method thereof |
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Address after: 830013 Urumqi high tech Zone (new city) North Industrial Park, blue sky road, No. 216, No. Applicant after: De blue water technology, Limited by Share Ltd Address before: 830013 Urumqi high tech Zone (new city) North Industrial Park, blue sky road, No. 216, No. Applicant before: Xinjiang Delan Co., Ltd. |
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Application publication date: 20170517 |