CN105126628B - Reverse osmosis antisludging agent and preparation method thereof - Google Patents
Reverse osmosis antisludging agent and preparation method thereof Download PDFInfo
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- CN105126628B CN105126628B CN201510531695.0A CN201510531695A CN105126628B CN 105126628 B CN105126628 B CN 105126628B CN 201510531695 A CN201510531695 A CN 201510531695A CN 105126628 B CN105126628 B CN 105126628B
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- reverse osmosis
- methanesulfonic acid
- antisludging agent
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- acid solution
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Abstract
The present invention provides a kind of reverse osmosis antisludging agent, and the raw material such as main maleic anhydride, potassium peroxydisulfate, sodium hypophosphite, methanesulfonic acid, stannous octoate, water is made.Sodium hypophosphite is molecular weight regulator in the present invention, can reduce the molecular weight of polymer, polymer viscosity is evenly distributed, and improves the stability of polymer, extends the shelf-life of polymer.Methanesulfonic acid is organic acid, with sulfonic acid group, and soil dispersion can be made to suspend, surface-active is improved, and prevents that reverse osmosis membrane dirt is stifled, while being a kind of excellent chelating agent.Stannous octoate is catalyst, improves polymer reaction speed, reduces the reaction time.Reverse osmosis antisludging agent of the present invention can extend the usage cycles of anti-seepage membrane, reduce cleaning charge, reduce the workload of workman.
Description
Technical field
The invention belongs to chemical field, more particularly to a kind of reverse osmosis antisludging agent and preparation method thereof.
Background technology
It can be realized by the desalination of the key technology such as UF membrane and sewage, waste water, salt water, seawater etc. are become into drinking water, work
Industry water, agricultural water, ecological water etc., reverse osmosis antisludging agent be it is a kind of safeguard the product that reverse osmosis membrane is normally used, generally
In the case of, just occur that aquifer yield declines every half a year or counter-infiltration system some months, the phenomenon such as pressure rise.This be mainly because
There was only scale-inhibiting properties for general reverse osmosis antisludging agent, without antifouling property.So at this moment need by counter-infiltration system stop into
Row cleaning, serious also needs to offline cleaning.Cleaning during shutdown had both influenceed normal production, increased operating cost, also increased workman's
Workload.The reverse osmosis antisludging agent of the present invention has resistant to pollution performance, can extend the cleaning frequency of reverse osmosis membrane, reduces anti-
The shutdown frequency of osmosis system, reduces the workload of workman, has saved expense.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of reverse osmosis antisludging agent and its system
Preparation Method, for solving, the cleaning frequency is short, costly, workload when reverse osmosis antisludging agent is to reverse osmosis membrane processing in the prior art
Big the problem of.
In order to achieve the above objects and other related objects, the present invention provides a kind of reverse osmosis antisludging agent, mainly by following matter
The raw material of amount part is made：20-50 parts of maleic anhydride, 2.0-3.5 parts of potassium peroxydisulfate, 0.1-0.3 parts of sodium hypophosphite, methanesulfonic acid
10-30 parts, 0.001-0.005 parts of stannous octoate, 35-50 parts of water.
According to the present invention, the reverse osmosis antisludging agent, its preparation method includes：
(1) potassium peroxydisulfate, methanesulfonic acid are dissolved with water respectively, prepares ammonium persulfate solution, methanesulfonic acid solution；
(2) will maleic anhydride, sodium hypophosphite, stannous octoate, in water input reaction vessel, stirring is to being uniformly dissolved；
Heating, is added dropwise ammonium persulfate solution first, then starts that methanesulfonic acid solution is added dropwise, controls rate of addition, make ammonium persulfate solution
Dripped off simultaneously with methanesulfonic acid solution；Insulation reaction 1-2 hours, cooling, blowing is produced.
Preferably, in step (2), ammonium persulfate solution is added dropwise and during methanesulfonic acid solution, controls the temperature in reaction vessel to be
70-110℃。
It is preferred that, the time that ammonium persulfate solution and methanesulfonic acid solution is added dropwise is 4-5 hours.
It is preferred that, in step (2), the temperature of insulation reaction is 70-110 DEG C.
In order to achieve the above objects and other related objects, the present invention provides a kind of preparation method of reverse osmosis antisludging agent, bag
Include：
(1) potassium peroxydisulfate, methanesulfonic acid are dissolved with water respectively, prepares ammonium persulfate solution, methanesulfonic acid solution；
(2) will maleic anhydride, sodium hypophosphite, stannous octoate, in water input reaction vessel, stirring is to being uniformly dissolved；
Heating, is added dropwise ammonium persulfate solution first, then starts that methanesulfonic acid solution is added dropwise, controls rate of addition, make ammonium persulfate solution
Dripped off simultaneously with methanesulfonic acid solution；Insulation reaction 1-2 hours, cooling, blowing is produced.
Preferably, in step (2), ammonium persulfate solution is added dropwise and during methanesulfonic acid solution, controls the temperature in reaction vessel to be
70-110℃。
It is preferred that, the time that ammonium persulfate solution and methanesulfonic acid solution is added dropwise is 4-5 hours.
It is preferred that, in step (2), the temperature of insulation reaction is 70-110 DEG C.
As described above, the reverse osmosis antisludging agent of the present invention, has the advantages that：
Sodium hypophosphite is molecular weight regulator in the present invention, can reduce the molecular weight of polymer, makes polymer viscosity point
Cloth is uniform, improves the stability of polymer, extends the shelf-life of polymer.Methanesulfonic acid is organic acid, with sulfonic acid group, can be with
Soil dispersion is suspended, improve surface-active, prevent that reverse osmosis membrane dirt is stifled, while being a kind of excellent chelating agent.Stannous octoate
It is catalyst, improves polymer reaction speed, reduces the reaction time.Reverse osmosis antisludging agent of the present invention can extend anti-seepage membrane
Usage cycles, reduce cleaning charge, reduce workman workload.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be clear that in the following example not specifically dated process equipment or device using conventional equipment in the art or
Device；All pressure values and scope are all referring to absolute pressure.
In addition, it is to be understood that the one or more method and steps mentioned in the present invention do not repel before and after the combination step
There can also be other method step or other method step can also be inserted between the step of these are specifically mentioned, unless separately
It is described；It should also be understood that the combination annexation between the one or more equipment/devices mentioned in the present invention is not repelled
Can also have other equipment/device before and after the unit equipment/device or two equipment/devices specifically mentioning at these it
Between can also insert other equipment/device, unless otherwise indicated.Moreover, unless otherwise indicated, the numbering of various method steps is only
Differentiate the convenient tool of various method steps, rather than ordering or restriction enforceable model of the invention for limitation various method steps
Enclose, being altered or modified for its relativeness is of the invention enforceable when being also considered as in the case of without essence change technology contents
Category.
Embodiment 1
1st, clean and dry reactor：After reactor is rinsed well, reactor is dried in heating；
2nd, feed intake：The ㎏ of maleic anhydride 500, the ㎏ of sodium hypophosphite 3, the ㎏ of stannous octoate 0.005, the ㎏ of water 200 inputs is anti-
Answer in kettle, open stirring, stirring and dissolving is uniform；
3rd, dissolve：The ㎏ of potassium peroxydisulfate 35 is dissolved in 100 ㎏ water, the ㎏ of methanesulfonic acid 100 is dissolved in 100 ㎏ water.
4th, it is added dropwise：When being warming up to 70 DEG C in reactor, potassium persulfate solution is first added dropwise, then methanesulfonic acid solution is added dropwise, controls
Flow velocity, makes potassium persulfate solution and methanesulfonic acid solution while dripping off, time for adding 4 hours, while controlling reactor temperature 70
℃；
5th, it is incubated：After potassium persulfate solution and methanesulfonic acid solution completion of dropping, 2 hours are incubated, temperature control is at 70 DEG C.
6th, after insulation terminates, 45 DEG C are cooled to, stops stirring, blowing is filtered and packaged, that is, obtains anti-soil of the present invention
Reverse osmosis antisludging agent is contaminated, cool place is deposited in and deposits at wind.
Embodiment 2
1st, clean and dry reactor：After reactor is rinsed well, reactor is dried in heating；
2nd, feed intake：The ㎏ of maleic anhydride 200, the ㎏ of sodium hypophosphite 1, the ㎏ of stannous octoate 0.001, the ㎏ of water 150 inputs is anti-
Answer in kettle, open stirring, stirring and dissolving is uniform；
3rd, dissolve：The ㎏ of potassium peroxydisulfate 20 is dissolved in 80 ㎏ water, the ㎏ of methanesulfonic acid 300 is dissolved in 250 ㎏ water；
4th, it is added dropwise：When being warming up to 110 DEG C in reactor, potassium persulfate solution is first added dropwise, then methanesulfonic acid solution is added dropwise, controls
Flow velocity, makes potassium persulfate solution and methanesulfonic acid solution while dripping off, time for adding 5 hours, while controlling reactor temperature 110
℃；
5th, it is incubated：After potassium persulfate solution and methanesulfonic acid solution completion of dropping, 1 hour is incubated, temperature control is at 100 DEG C.
6th, after insulation terminates, 40 DEG C are cooled to, stops stirring, blowing is filtered and packaged, that is, obtains anti-soil of the present invention
Reverse osmosis antisludging agent is contaminated, cool place is deposited in and deposits at wind.
Embodiment 3
1st, clean and dry reactor：After reactor is rinsed well, reactor is dried in heating；
2nd, feed intake：The ㎏ of maleic anhydride 400, the ㎏ of sodium hypophosphite 2, the ㎏ of stannous octoate 0.004, the ㎏ of water 150 inputs is anti-
Answer in kettle, open stirring, stirring and dissolving is uniform；
3rd, dissolve：The ㎏ of potassium peroxydisulfate 25 is dissolved in 80 ㎏ water, the ㎏ of methanesulfonic acid 250 is dissolved in 120 ㎏ water；
4th, it is added dropwise：When being warming up to 95 DEG C in reactor, potassium persulfate solution is first added dropwise, then methanesulfonic acid solution is added dropwise, controls
Flow velocity, makes potassium persulfate solution and methanesulfonic acid solution while dripping off, time for adding 4.5 hours, while controlling reactor temperature
95℃；
5th, it is incubated：After potassium persulfate solution and methanesulfonic acid solution completion of dropping, 2 hours are incubated, temperature control is at 95 DEG C.
6th, after insulation terminates, 42 DEG C are cooled to, stops stirring, blowing is filtered and packaged, that is, obtains anti-soil of the present invention
Reverse osmosis antisludging agent is contaminated, cool place is deposited in and deposits at wind.
Embodiment 4
1st, clean and dry reactor：After reactor is rinsed well, reactor is dried in heating；
2nd, feed intake：By the ㎏ of maleic anhydride 300, the ㎏ of sodium hypophosphite 2.5, the ㎏ of stannous octoate 0.002, the ㎏ of water 100 inputs
In reactor, stirring is opened, stirring and dissolving is uniform；
3rd, dissolve：The ㎏ of potassium peroxydisulfate 30 is dissolved in 200 ㎏ water, the ㎏ of methanesulfonic acid 200 is dissolved in 200 ㎏ water；
4th, it is added dropwise：When being warming up to 100 DEG C in reactor, potassium persulfate solution is first added dropwise, then methanesulfonic acid solution is added dropwise, controls
Flow velocity, makes potassium persulfate solution and methanesulfonic acid solution while dripping off, time for adding 4 hours, while controlling reactor temperature 100
℃；
5th, it is incubated：After potassium persulfate solution and methanesulfonic acid solution completion of dropping, 2 hours are incubated, temperature control is at 100 DEG C.
6th, after insulation terminates, 40 DEG C are cooled to, stops stirring, blowing is filtered and packaged, that is, obtains anti-soil of the present invention
Reverse osmosis antisludging agent is contaminated, cool place is deposited in and deposits at wind.
Embodiment 5
1st, clean and dry reactor：After reactor is rinsed well, reactor is dried in heating；
2nd, feed intake：By the ㎏ of maleic anhydride 350, the ㎏ of sodium hypophosphite 1.5, the ㎏ of stannous octoate 0.004, the ㎏ of water 150 inputs
In reactor, stirring is opened, stirring and dissolving is uniform；
3rd, dissolve：The ㎏ of potassium peroxydisulfate 25 is dissolved in 100 ㎏ water, the ㎏ of methanesulfonic acid 250 is dissolved in 150 ㎏ water；
4th, it is added dropwise：When being warming up to 80 DEG C in reactor, potassium persulfate solution is first added dropwise, then methanesulfonic acid solution is added dropwise, controls
Flow velocity, makes potassium persulfate solution and methanesulfonic acid solution while dripping off, time for adding 5 hours, while controlling reactor temperature 80
℃；
5th, it is incubated：After potassium persulfate solution and methanesulfonic acid solution completion of dropping, 1.5 hours are incubated, temperature control is at 80 DEG C.
6th, after insulation terminates, 40 DEG C are cooled to, stops stirring, blowing is filtered and packaged, that is, obtains anti-soil of the present invention
Reverse osmosis antisludging agent is contaminated, cool place is deposited in and deposits at wind.
Test example 1
Two sets of counter-infiltration systems of northeast steam power plant, water source is underground water, the ton hour of aquifer yield 80 is often covered, from 2008
Since driving, always using the reverse osmosis antisludging agent of Tianjin company, often run three to four months when, producing water ratio decline 15% with
On, pressure increase by more than 15%, production water conductivity increase by more than 15%.Because the cleaning Standard General of counter-infiltration is under producing water ratio
Drop more than 15%, pressure increase by more than 15%, production water conductivity increase by more than 15%.Therefore often operation is had to for three to four months
Cleaning during shutdown, every time during cleaning one section of counter-infiltration system have compared with multi-pollutant, scavenging period is generally five to seven days, seriously
It has impact on production.Particularly heating season in the winter time, influences more serious.Since 2010, the steam power plant employed this hair
Bright anti-pollution reverse-osmosis antisludging agent, when the cycle of operation reaches 1 year, producing water ratio declines 8%, and pressure increase by 5%, production water power is led
Rate increase by 12%.Illustrate the integration period that pollutant is slow down using the antipollution anti-incrustation corrosion inhibitor of the present invention, extend reverse osmosis
The cleaning frequency of permeable system, the cleaning frequency of steam power plant's counter-infiltration system was extended to 1 year by three to four months.
Test example 2
Five sets of Shandong chemical plant counter-infiltration system, water source is Huanghe water, the ton hour of aquifer yield 100 is often covered, from 2010
Since driving, always using the reverse osmosis antisludging agent of Nanjing company, when often running one to two month, producing water ratio decline 15% with
On, pressure increase by more than 15%, production water conductivity increase by more than 15%.Because the cleaning Standard General of counter-infiltration is under producing water ratio
Drop more than 15%, pressure increase by more than 15%, production water conductivity increase by more than 15%.Therefore one to two moon is often run to have to
Cleaning during shutdown, there be compared with multi-pollutant one section of counter-infiltration system, and two sections of foulings are more serious when cleaning every time.During cleaning
Between generally seven to ten days, had a strong impact on production.Since 2013, the chemical plant employed the antipollution reverse osmosis of the present invention
Saturating antisludging agent, when the cycle of operation reaches 1 year, producing water ratio declines 10%, pressure increase by 8%, production water conductivity increase by 10%.Say
The bright antipollution anti-incrustation corrosion inhibitor using the present invention slow down the integration period of pollutant, extend the cleaning week of counter-infiltration system
Phase, by the cleaning frequency of the chemical plant counter-infiltration system by extending to 1 year one to two moon.
Test example 3
Four sets of Hebei power plant counter-infiltration system, water source is underground water, the ton hour of aquifer yield 200 is often covered, from 2011
Since driving, always using the reverse osmosis antisludging agent of Beijing company, often run five to six months when, producing water ratio decline 15% with
On, pressure increase by more than 15%, production water conductivity increase by more than 15%.Because the cleaning Standard General of counter-infiltration is under producing water ratio
Drop more than 15%, pressure increase by more than 15%, production water conductivity increase by more than 15%.Therefore often operation is had to for five to six months
Cleaning during shutdown, every time during cleaning one section of counter-infiltration system have compared with multi-pollutant, scavenging period is generally five to seven days, seriously
It has impact on production.Since 2014, the power plant employed the anti-pollution reverse-osmosis antisludging agent of the present invention, and the cycle of operation reaches
At 1 year, producing water ratio declines 6%, pressure increase by 5%, production water conductivity increase by 10%.Illustrate to hinder using the antipollution of the present invention
Dirty corrosion inhibiter slow down the integration period of pollutant, extend the cleaning frequency of counter-infiltration system, by the power plant counter-infiltration system
The cleaning frequency of system extended to 1 year by five to six months.
Embodiment above is, in order to illustrate embodiment disclosed by the invention, can not to be interpreted as the limit to the present invention
System.In addition, method, the change of composition in various modifications listed herein and invention, are not departing from the scope of the present invention
Be obvious for those skilled in the art on the premise of spirit.Although having combined a variety of specific of the present invention
Preferred embodiment has carried out specific description to the present invention, it is to be understood that, the present invention should not be limited only to these specific embodiments.
In fact, various modifications obvious for those skilled in the art as described above should all include to obtain invention
Within the scope of the invention.
Claims (8)
1. a kind of reverse osmosis antisludging agent, it is characterised in that be mainly made up of the raw material of following mass parts：Maleic anhydride 20-
50 parts, 2.0-3.5 parts of potassium peroxydisulfate, 0.1-0.3 parts of sodium hypophosphite, 10-30 parts of methanesulfonic acid, 0.001-0.005 parts of stannous octoate,
35-50 parts of water；
Its preparation method includes：
(1) potassium peroxydisulfate, methanesulfonic acid are dissolved with water respectively, prepares ammonium persulfate solution, methanesulfonic acid solution；
(2) will maleic anhydride, sodium hypophosphite, stannous octoate, in water input reaction vessel, stirring is to being uniformly dissolved；Heating,
Potassium persulfate solution is added dropwise first, then starts that methanesulfonic acid solution is added dropwise, controls rate of addition, make ammonium persulfate solution and first sulphur
Acid solution is dripped off simultaneously；Insulation reaction 1-2 hours, cooling, blowing is produced.
2. reverse osmosis antisludging agent as claimed in claim 1, it is characterised in that in step (2), is added dropwise potassium persulfate solution and first sulphur
During acid solution, it is 70-110 DEG C to control temperature in reaction vessel.
3. reverse osmosis antisludging agent as claimed in claim 1, it is characterised in that in step (2), is added dropwise potassium persulfate solution and first sulphur
The time of acid solution is 4-5 hours.
4. reverse osmosis antisludging agent as claimed in claim 1, it is characterised in that in step (2), the temperature of insulation reaction is 70-110
℃。
5. the preparation method of reverse osmosis antisludging agent as claimed in claim 1, it is characterised in that including：
(1) potassium peroxydisulfate, methanesulfonic acid are dissolved with water respectively, prepares ammonium persulfate solution, methanesulfonic acid solution；
(2) will maleic anhydride, sodium hypophosphite, stannous octoate, in water input reaction vessel, stirring is to being uniformly dissolved；Heating,
Potassium persulfate solution is added dropwise first, then starts that methanesulfonic acid solution is added dropwise, controls rate of addition, make ammonium persulfate solution and first sulphur
Acid solution is dripped off simultaneously；Insulation reaction 1-2 hours, cooling, blowing is produced.
6. the preparation method of reverse osmosis antisludging agent as claimed in claim 5, it is characterised in that in step (2), is added dropwise potassium peroxydisulfate
When solution and methanesulfonic acid solution, it is 70-110 DEG C to control temperature in reaction vessel.
7. the preparation method of reverse osmosis antisludging agent as claimed in claim 5, it is characterised in that potassium persulfate solution and first sulphur is added dropwise
The time of acid solution is 4-5 hours.
8. the preparation method of reverse osmosis antisludging agent as claimed in claim 5, it is characterised in that in step (2), the temperature of insulation reaction
Spend for 70-110 DEG C.
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| CN106669429A (en) * | 2016-12-22 | 2017-05-17 | 新疆德蓝股份有限公司 | Phosphate-free scale inhibitor for reverse osmosis membrane |
| CN107456843A (en) * | 2017-09-11 | 2017-12-12 | 安徽智博新材料科技有限公司 | A kind of pharmaceutical factory's waste gas dedicated treating liquid |
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| CN103554361B (en) * | 2013-10-25 | 2016-03-30 | 中国海洋石油总公司 | A kind of preparation method of high-efficiency calcium phosphate scale inhibitor |
| CN104174295A (en) * | 2014-09-15 | 2014-12-03 | 山东天庆科技发展有限公司 | Phosphorus-free reverse osmosis scale inhibitor and preparation method thereof |
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