CN109095627A - A kind of recirculated water research of non-phosphorus scale inhibitor and preparation method thereof - Google Patents
A kind of recirculated water research of non-phosphorus scale inhibitor and preparation method thereof Download PDFInfo
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- CN109095627A CN109095627A CN201810831927.8A CN201810831927A CN109095627A CN 109095627 A CN109095627 A CN 109095627A CN 201810831927 A CN201810831927 A CN 201810831927A CN 109095627 A CN109095627 A CN 109095627A
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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
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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
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Abstract
The present invention discloses a kind of recirculated water phosphate-free corrosion inhibition antisludging agent and preparation method thereof, the main ingredient of the antisludging agent are as follows: be prepared with methyl maleate-acrylamide copolymer, sodium lignin sulfonate, sodium gluconate, isothiazolinone and deionized water.Antisludging agent of the present invention has efficient dispersing and antisludging effect to a variety of dirty stifled substances, and is without phosphorus formula, not will cause the eutrophication of environment, has certain corrosion mitigating effect and apparent environmental benefit.
Description
Technical field
The invention belongs to Scale Inhibitors for Water technical fields, more particularly to kind of recirculated water research of non-phosphorus scale inhibitor and its a preparation side
Method.
Background technique
China is the serious poor and north and south country unevenly distributed of a water resource, and how industry and daily life save use
Water is at an important project.Wherein cooling water has accounted for 90 or more percent in industrial water.The circulation of cooling water
Use the main method side for being saving industrial water.But cooling water is after recycling, the metal ion in water, dissolved solid and
Suspended matter increases, and makes the equipment scaling in circulation, corrodes, significantly influences the use of equipment, and shorten and set
The standby service life.Added into recirculated water antisludging agent be control fouling main method, therefore antisludging agent become both at home and abroad it is most active
One of field.
The P containing sludge inhibitor largely used in industrial circulating water causes destruction to water resource and environment.Therefore, low-phosphorous or
The key points and difficulties of person's research of non-phosphorus scale inhibitor circulating water antisludging agent development.
Summary of the invention
The object of the present invention is to provide a kind of recirculated water research of non-phosphorus scale inhibitor, which has efficient dispersion resistance
Dirty effect.
The present invention is realized using following technical scheme: a kind of recirculated water research of non-phosphorus scale inhibitor and preparation method thereof, the nothing
Phosphorus antisludging agent includes: methyl maleate -20-30 parts of acrylamide copolymer according to parts by weight, and 13-16 parts of sodium lignin sulfonate,
3-8 parts of sodium gluconate, 0.2-0.6 parts of isothiazolinone, surplus is water.
Further, the methyl maleate-acrylamide copolymer includes: dimethyl maleate 15- according to parts by weight
20 parts, 6-9 parts of acrylamide, 12-15 parts of hydrogen peroxide, 30-50 parts of deionized water.
Further, the research of non-phosphorus scale inhibitor includes: 26 parts of methyl maleate-acrylamide copolymer according to parts by weight,
15 parts of sodium lignin sulfonate, 7 parts of sodium gluconate, 0.4 part of isothiazolinone, surplus is water.
Further, the preparation method of the research of non-phosphorus scale inhibitor, specifically includes the following steps:
Step 1: reaction kettle being rinsed well, methyl maleate-acrylamide copolymer, sodium lignin sulfonate, gluconic acid
Sodium and deionized water are added in reaction kettle, and control temperature of reaction kettle is 80 DEG C, stir 60 minutes；
Step 2: opening cooling water, be down to 25-30 DEG C to temperature of reaction kettle, isothiazolinone is added, stir 10 minutes；
Step 3: opening baiting valve, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Further, the methyl maleate-acrylamide copolymer preparation method specifically includes the following steps:
(1) dimethyl maleate and portions of de-ionized water are put into reaction kettle, reaction kettle is heated to 90-102 DEG C；
(2) 3-6 times of deionized water of acrylamide and its weight is mixed to join in head tank；
(3) hydrogen peroxide is added in another head tank；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 30-45 minutes, and keeps reacting
Temperature in kettle is 115-120 DEG C, is stirred 45-60 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 105-110 DEG C, after heat preservation 60-70 minutes, be cooled to room temperature, maleic acid can be obtained
Methyl esters-acrylamide copolymer.
Beneficial effects of the present invention: research of non-phosphorus scale inhibitor prepared by the present invention contains carboxyl, hydroxyl, ester group, sulfonic group etc.
Functional group, dirty stifled substances a variety of to calcium carbonate, calcium sulfate, calcium phosphate, barium sulfate etc. have apparent dispersing and antisludging effect, and
Also there is certain bactericidal effect；Antisludging agent of the present invention has efficient dispersing and antisludging effect to a variety of dirty stifled substances, and is
Without phosphorus formula not will cause the eutrophication of environment, have certain corrosion mitigating effect and apparent environmental benefit.
Specific embodiment
The present invention is further described through combined with specific embodiments below.
Embodiment 1
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 20 parts of methyl maleate-acrylamide copolymer, 13 parts of sodium lignin sulfonate, 8 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 2
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 30 parts of methyl maleate-acrylamide copolymer, 13 parts of sodium lignin sulfonate, 8 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 3
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 13 parts of sodium lignin sulfonate, 8 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 4
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 16 parts of sodium lignin sulfonate, 8 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 5
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 15 parts of sodium lignin sulfonate, 8 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 6
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 15 parts of sodium lignin sulfonate, 3 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 7
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 15 parts of sodium lignin sulfonate, 6 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.4 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 8
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 15 parts of sodium lignin sulfonate, 6 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.6 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Embodiment 9
Methyl maleate-acrylamide copolymer optimum proportioning is determined by control variate method first, according to optimum proportioning system
Standby methyl maleate-acrylamide copolymer: (1) reaction kettle is rinsed, 17 parts of methyl maleates and 17 parts of deionized waters
It puts into reaction kettle, opens stirring, be heated slowly to 100 DEG C；
(2) 7 parts of acrylamides are mixed with 23 parts of deionized waters, solution is added in head tank with vacuum pump；
(3) 14 parts of hydrogen peroxide are added in another head tank with vacuum pump；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 35 minutes, and is kept in reaction kettle
Temperature be 115 DEG C, stirred 45 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 110 DEG C, heat preservation after sixty minutes, after being cooled to room temperature, opens baiting valve, by what is obtained
Copolymer is attached in pail pack.
Methyl maleate-the acrylamide copolymer being prepared is used to prepare research of non-phosphorus scale inhibitor: (6) rush reaction kettle
Wash clean, 26 parts of methyl maleate-acrylamide copolymer, 15 parts of sodium lignin sulfonate, 6 parts of sodium gluconate, 54.6 parts
Deionized water is added in reaction kettle, and control temperature of reaction kettle is 75 DEG C, stirs 50 minutes.
(7) cooling water is opened, 25 DEG C is down to temperature of reaction kettle, is added 0.2 part of isothiazolinone, stir 10 minutes.
(8) baiting valve is opened, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
Research of non-phosphorus scale inhibitor of the Example 1 into embodiment 9 carries out scale inhibition efficiency test, and the results are shown in Table 1.
1 embodiment 1 of table to embodiment 9 research of non-phosphorus scale inhibitor scale inhibition efficiency
| Antisludging agent title | Inhibitor concentration (ppm) | It hinders calcium carbonate scaling rate (%) | It hinders calcium sulfate scaling rate (%) | It hinders calcium phosphate scales rate (%) | It hinders barium sulfate scaling rate (%) |
| Embodiment 1 | 5 | 95.2 | 94.6 | 92.3 | 87.3 |
| Embodiment 2 | 5 | 95.3 | 95.1 | 94.1 | 88.3 |
| Embodiment 3 | 5 | 96.5 | 95.3 | 97.3 | 88.6 |
| Embodiment 4 | 5 | 97.3 | 96.7 | 97.6 | 89.3 |
| Embodiment 5 | 5 | 97.6 | 96.8 | 98.9 | 90.3 |
| Embodiment 6 | 5 | 98.4 | 97.5 | 99.2 | 92.3 |
| Embodiment 7 | 5 | 99.6 | 99.3 | 99.7 | 94.5 |
| Embodiment 8 | 5 | 99.1 | 98.9 | 98.6 | 93.2 |
| Embodiment 9 | 5 | 98.9 | 97.8 | 98.1 | 92.6 |
It is shown by the data of table 1 it is found that the scale inhibition of embodiment 7 is high-efficient, and does further to the inhibitor concentration of embodiment 7
Test, as shown in table 2.
Test of 2 inhibitor concentration of table to scale inhibition efficiency
| Antisludging agent title | Inhibitor concentration (ppm) | It hinders calcium carbonate scaling rate (%) | It hinders calcium sulfate scaling rate (%) | It hinders calcium phosphate scales rate (%) | It hinders barium sulfate scaling rate (%) |
| Embodiment 7 | 2 | 98.3 | 97.3 | 98.6 | 92.3 |
| Embodiment 7 | 5 | 99.6 | 99.3 | 99.7 | 94.5 |
| Embodiment 7 | 8 | 99.2 | 98.6 | 98.1 | 93.1 |
Antisludging agent of the present invention has efficient dispersing and antisludging effect for a variety of dirty stifled more existing antisludging agents of substance, and is
Without phosphorus formula not will cause the eutrophication of environment, have certain corrosion mitigating effect and apparent environmental benefit.
Claims (5)
1. a kind of recirculated water research of non-phosphorus scale inhibitor and preparation method thereof, which is characterized in that the research of non-phosphorus scale inhibitor is according to parts by weight packet
It includes: methyl maleate -20-30 parts of acrylamide copolymer, 13-16 parts of sodium lignin sulfonate, 3-8 parts of sodium gluconate, different thiophene
0.2-0.6 parts of oxazoline ketone, surplus is water.
2. a kind of recirculated water research of non-phosphorus scale inhibitor according to claim 1 and preparation method thereof, which is characterized in that the Malaysia
Sour methyl esters-acrylamide copolymer includes: 15-20 parts of dimethyl maleate according to parts by weight, and 6-9 parts of acrylamide, hydrogen peroxide
12-15 parts, 30-50 parts of deionized water.
3. a kind of recirculated water research of non-phosphorus scale inhibitor according to claim 1 and preparation method thereof, which is characterized in that described without phosphorus
Antisludging agent includes: 26 parts of methyl maleate-acrylamide copolymer according to parts by weight, and 15 parts of sodium lignin sulfonate, gluconic acid
7 parts of sodium, 0.4 part of isothiazolinone, surplus is water.
4. a kind of recirculated water research of non-phosphorus scale inhibitor according to claim 1 and preparation method thereof, which is characterized in that described without phosphorus
The preparation method of antisludging agent, specifically includes the following steps:
Step 1: reaction kettle being rinsed well, methyl maleate-acrylamide copolymer, sodium lignin sulfonate, gluconic acid
Sodium and deionized water are added in reaction kettle, and control temperature of reaction kettle is 80 DEG C, stir 60 minutes；
Step 2: opening cooling water, be down to 25-30 DEG C to temperature of reaction kettle, isothiazolinone is added, stir 10 minutes；
Step 3: opening baiting valve, solution obtained above is fitted into pail pack, the place for being protected from light ventilation is stored in.
5. a kind of recirculated water research of non-phosphorus scale inhibitor according to claim 2 and preparation method thereof, which is characterized in that the Malaysia
The preparation method of sour methyl esters-acrylamide copolymer specifically includes the following steps:
(1) dimethyl maleate and portions of de-ionized water are put into reaction kettle, reaction kettle is heated to 90-102 DEG C；
(2) 3-6 times of deionized water of acrylamide and its weight is mixed to join in head tank；
(3) hydrogen peroxide is added in another head tank；
(4) raw material in two head tanks is added drop-wise in reaction kettle simultaneously, time for adding is 30-45 minutes, and keeps reacting
Temperature in kettle is 115-120 DEG C, is stirred 45-60 minutes after being added dropwise to complete；
(5) stop mixing control temperature at 105-110 DEG C, after heat preservation 60-70 minutes, be cooled to room temperature, maleic acid can be obtained
Methyl esters-acrylamide copolymer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526686A (en) * | 2021-08-17 | 2021-10-22 | 新疆水处理工程技术研究中心有限公司 | Phosphorus-free scale inhibitor and preparation method thereof |
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Application publication date: 20181228 |