CN106045071A - Scale inhibitor for MVR evaporator and preparation method of scale inhibitor - Google Patents
Scale inhibitor for MVR evaporator and preparation method of scale inhibitor Download PDFInfo
- Publication number
- CN106045071A CN106045071A CN201610489815.XA CN201610489815A CN106045071A CN 106045071 A CN106045071 A CN 106045071A CN 201610489815 A CN201610489815 A CN 201610489815A CN 106045071 A CN106045071 A CN 106045071A
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- Prior art keywords
- acid
- reactor
- maleic anhydride
- scale inhibitor
- acrylic acid
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- 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
- C02F2101/306—Pesticides
-
- 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
- C02F2103/343—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 pharmaceutical industry, e.g. containing antibiotics
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of zero discharge of wastewater and particularly discloses a scale inhibitor for an MVR evaporator and a preparation method of the scale inhibitor. The scale inhibitor for the MVR evaporator is prepared by mixing styrene-acrylic acid-maleic anhydride-aminopropanesulfonic acid tetra-copolymer, isothiazolinone, polyaspartic acid, acrylic acid, 2-acrylamide-2-methylpropanesulfonic acid copolymer, hydrolytic polymaleic anhydride, hexamethylenetetramine, sodium benzotriazole and polydiallyldimethylammonium chloride in water in certain proportion by weight. The ingredients of the product disclosed by the invention are safe and environment-friendly; the production process is simple; and aiming at a high scale inhibition rate of high-hardness high-COD wastewater treated by the MVR evaporator, the cleaning period can be prolonged by more than one time.
Description
(1) technical field
The present invention relates to waste water zero-discharge technology field, particularly to a kind of MVR vaporizer antisludging agent and preparation method thereof.
(2) background technology
Having substantial amounts of waste water to produce in commercial production, be the important waste water source polluting environment, a lot of enterprises all use MVR vaporizer
Process the waste water of high rigidity height COD.
When processing high rigidity high-COD waste water, MVR vaporizer is easy to structure, general about 15 days will the most once,
Clearly needing the time of 3-5 days every time, need to consume substantial amounts of cleaning agent, hand labor intensity is big.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of delay fouling, extend the cleaning frequency MVR vaporizer use
Antisludging agent and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of MVR vaporizer antisludging agent, is characterized by, be made up of the raw material of following weight fraction: 5-8 part styrene-propene
Acid-maleic anhydride-aminopropanesulfonic acid quadripolymer, 1-5 part isothiazolone, 15-25 part Polysucciuimide, 25-40 part third
Olefin(e) acid and 2-acrylamide-2-methyl propane sulfonic copolymer, 10-20 part hydrolytic polymaleic anhydride, 5-12 part hexamethylenetetramine,
2-5 part benzotriazole sodium, 8-15 part polydiene base the third alkyl dimethyl ammonium chloride, 30-50 part water.
The more excellent technical scheme of the present invention is:
Described Styrene And Chloroalkyl Acrylates-maleic anhydride-aminopropanesulfonic acid quadripolymer uses as dispersant, wherein styrene,
The mol ratio of acrylic acid, maleic anhydride and aminopropanesulfonic acid is 10:1-15:1-8:1-8.
The present invention adds isothiazolone, effectively reduces antibacterial and algae infestation in production process, is the most also beneficial to mud
Stripping.
The preparation method of described MVR vaporizer antisludging agent, comprises the steps:
(1) in reactor A, hydrolytic polymaleic anhydride, BTA sodium, Styrene And Chloroalkyl Acrylates-maleic anhydride-amino are added
Tetrasulfonic acid quadripolymer, stirring and dissolving；
(2) in reactor B, isothiazolone, Polysucciuimide, acrylic acid are added with 2-acrylamide-2-methyl propane sulfonic altogether
Polymers, hexamethylenetetramine, polydiene base the third alkyl dimethyl ammonium chloride, stir；
(3) solution in reactor A is joined in reactor B, be stirring evenly and then adding into water, be stirred for uniformly i.e. can being produced
Product.
Product component safety and environmental protection of the present invention, production technology is simple, and the high rigidity height COD processed for MVR vaporizer gives up
The scale inhibition performance of water is high, and its cleaning frequency can be made to extend more than one times.
(4) detailed description of the invention
Embodiment 1:
Certain company uses domestic MVR to carry out the process of agricultural chemicals waste water, this useless hardness of water be 35640mg/l, COD be 46780mg/
L, is normally that 15 days needs are carried out once, and after using the antisludging agent of the present invention, the cleaning frequency reaches 40-45 days.
The antisludging agent preparation process of the present invention is:
(1) in reactor A, weigh 20 parts of hydrolytic polymaleic anhydride by mass fraction, add 5 parts of BTA sodium, 8 parts of benzene
Ethylene-acrylic acid-maleic anhydride-aminopropanesulfonic acid quadripolymer, stirring and dissolving；
(2) in reactor B, 5 parts of isothiazolone, 25 parts of poly-aspartates, 40 parts of acrylic acid and 2-third are weighed by mass fraction
Acrylamide-2-methyl propane sulfonic acid copolymer, 12 parts of hexamethylenetetramines, 15 parts of polydiene base third alkyl dimethyl ammonium chlorides, stirring is all
Even；
(3) solution in reactor A is joined in reactor B, be stirring evenly and then adding into 50 parts of water, be stirred for uniformly.
Embodiment 2:
Certain company uses the MVR equipment of Canada's import to carry out chemical wastewater treatment, and this useless hardness of water is 9650mg/l, COD
For 6780mg/l, being normally to clean once for 45 days, after using the antisludging agent of the present invention, the cleaning frequency reaches 140-160 days.
The antisludging agent preparation process of the present invention is:
(1) in reactor A, weigh 10 parts of hydrolytic polymaleic anhydride by mass fraction, add 2 parts of BTA sodium, 5 parts of benzene
Ethylene-acrylic acid-maleic anhydride-aminopropanesulfonic acid quadripolymer, stirring and dissolving；
(2) in reactor B, 1 part of isothiazolone, 15 parts of poly-aspartates, 25 parts of acrylic acid and 2-third are weighed by mass fraction
Acrylamide-2-methyl propane sulfonic acid copolymer, 5 parts of hexamethylenetetramines, 8 parts of polydiene base third alkyl dimethyl ammonium chlorides, stir；
(3) solution in reactor A is joined in reactor B, be stirring evenly and then adding into 30 parts of water, be stirred for uniformly.
Embodiment 3:
Certain company uses domestic MVR to carry out the process of agricultural chemicals waste water, this useless hardness of water be 21830mg/l, COD be 29480mg/
L, is normally that 30 days needs are carried out once, and after using the antisludging agent of the present invention, the cleaning frequency reaches 90-100 days.
The antisludging agent preparation process of the present invention is:
(1) in reactor A, weigh 15 parts of hydrolytic polymaleic anhydride by mass fraction, add 3 parts of BTA sodium, 7 parts of benzene
Ethylene-acrylic acid-maleic anhydride-aminopropanesulfonic acid quadripolymer, stirring and dissolving；
(2) in reactor B, 3 parts of isothiazolone, 20 parts of poly-aspartates, 32 parts of acrylic acid and 2-third are weighed by mass fraction
Acrylamide-2-methyl propane sulfonic acid copolymer, 9 parts of hexamethylenetetramines, 12 parts of polydiene base third alkyl dimethyl ammonium chlorides, stirring is all
Even；
(3) solution in reactor A is joined in reactor B, be stirring evenly and then adding into 40 parts of water, be stirred for uniformly.
Claims (3)
1. a MVR vaporizer antisludging agent, is characterized by, is made up of the raw material of following weight fraction: 5-8 part styrene-the third
Olefin(e) acid-maleic anhydride-aminopropanesulfonic acid quadripolymer, 1-5 part isothiazolone, 15-25 part Polysucciuimide, 25-40 part
Acrylic acid and 2-acrylamide-2-methyl propane sulfonic copolymer, 10-20 part hydrolytic polymaleic anhydride, 5-12 part six methine four
Amine, 2-5 part benzotriazole sodium, 8-15 part polydiene base the third alkyl dimethyl ammonium chloride, 30-50 part water.
The preparation method of MVR vaporizer antisludging agent the most according to claim 1, it is characterised in that: described styrene-the third
Olefin(e) acid-maleic anhydride-aminopropanesulfonic acid quadripolymer uses as dispersant, wherein styrene, acrylic acid, maleic anhydride and
The mol ratio of aminopropanesulfonic acid is 10:1-15:1-8:1-8.
The preparation method of MVR vaporizer antisludging agent the most according to claim 1, is characterized by, comprise the steps:
(1) in reactor A, hydrolytic polymaleic anhydride, BTA sodium, Styrene And Chloroalkyl Acrylates-maleic anhydride-amino four sulphur are added
Acid quadripolymer, stirring and dissolving；(2) in reactor B, isothiazolone, Polysucciuimide, acrylic acid and 2-propylene are added
Amide-2-methyl propane sulfonic acid copolymer, hexamethylenetetramine, polydiene base the third alkyl dimethyl ammonium chloride, stir；(3) will be anti-
Answer the solution in still A to join in reactor B, be stirring evenly and then adding into water, be stirred for uniformly i.e. can get product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610489815.XA CN106045071B (en) | 2016-06-29 | 2016-06-29 | A kind of MVR evaporator antisludging agent and preparation method thereof |
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| CN201610489815.XA CN106045071B (en) | 2016-06-29 | 2016-06-29 | A kind of MVR evaporator antisludging agent and preparation method thereof |
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| CN106045071B CN106045071B (en) | 2019-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143678A (en) * | 2019-06-13 | 2019-08-20 | 科得邦（江苏）环境科技有限公司 | A kind of Phosphateless environmentally friendly MVR evaporator antisludging agent and preparation method thereof |
| CN111517487A (en) * | 2020-04-29 | 2020-08-11 | 欣格瑞（山东）环境科技有限公司 | Composite scale inhibitor and preparation method thereof |
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| CN102250604A (en) * | 2011-05-27 | 2011-11-23 | 门正国 | Controlled releasing microcapsule for scale prevention, wax prevention or viscosity reduction of oil well |
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| CN104556419A (en) * | 2014-12-24 | 2015-04-29 | 芜湖协诚金属制品有限公司 | Preparation method for efficient corrosion and scale inhibitor |
| CN104891684A (en) * | 2015-05-25 | 2015-09-09 | 山东英联化学科技有限公司 | Phosphorus-free composite corrosion and scale inhibitor for bitter circulating water and preparation method thereof |
| CN105126627A (en) * | 2015-08-26 | 2015-12-09 | 山东天庆科技发展有限公司 | Reverse osmosis membrane scale inhibitor and application thereof |
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2016
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| CN101948189A (en) * | 2010-09-02 | 2011-01-19 | 蓝星环境工程有限公司 | Non-phosphorus reverse osmosis membrane scale inhibitor and preparation method thereof |
| CN102250604A (en) * | 2011-05-27 | 2011-11-23 | 门正国 | Controlled releasing microcapsule for scale prevention, wax prevention or viscosity reduction of oil well |
| CN104150617A (en) * | 2014-08-26 | 2014-11-19 | 山东瑞爱特环保科技有限公司 | Phosphorus-free scale and corrosion inhibitor and preparation method thereof |
| CN104528966A (en) * | 2014-12-24 | 2015-04-22 | 芜湖协诚金属制品有限公司 | Corrosion mitigation and scale inhibition method for aluminum heat exchanger |
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| CN104891684A (en) * | 2015-05-25 | 2015-09-09 | 山东英联化学科技有限公司 | Phosphorus-free composite corrosion and scale inhibitor for bitter circulating water and preparation method thereof |
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| CN110143678A (en) * | 2019-06-13 | 2019-08-20 | 科得邦（江苏）环境科技有限公司 | A kind of Phosphateless environmentally friendly MVR evaporator antisludging agent and preparation method thereof |
| CN111517487A (en) * | 2020-04-29 | 2020-08-11 | 欣格瑞（山东）环境科技有限公司 | Composite scale inhibitor and preparation method thereof |
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| CN106045071B (en) | 2019-07-02 |
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