CN105130022A - Preparation method for reverse-osmosis scale inhibition dispersion agent - Google Patents
Preparation method for reverse-osmosis scale inhibition dispersion agent Download PDFInfo
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- CN105130022A CN105130022A CN201510560913.3A CN201510560913A CN105130022A CN 105130022 A CN105130022 A CN 105130022A CN 201510560913 A CN201510560913 A CN 201510560913A CN 105130022 A CN105130022 A CN 105130022A
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Abstract
The invention discloses a preparation method for a scale inhibition dispersion agent. The preparation method comprises the following steps: firstly, preparation of a dispersant is carried out; secondly, compounding of a scale inhibition dispersion agent is carried out. The prepared scale inhibition dispersion agent has the following advantages: firstly, the scale inhibition dispersion agent has an excellent scale inhibition performance to calcium carbonate, calcium phosphate, barium sulfate and the like, and can be applied in an reverse-osmosis system with a high pH value, a high alkalinity, high hardness and a high recovery rate; secondly, the scale inhibition dispersion agent has a good dispersion effect on common metal pollution and has a good inhibition effect on microbial pollution; thirdly, the scale inhibition dispersion agent employs a low-phosphorous formula, and is environmentally friendly and safe.
Description
Technical field
The present invention relates to reverse osmosis dirt dispersion agent field, particularly a kind of preparation method being applicable to the reverse osmosis system dirt dispersion agent of high ph-values, high alkalinity, high rigidity and high-recovery.
Background technology
In recent years along with the reinforcement of environmental protection dynamics and the intensification of the contradiction of supply and demand for the water resource, rational utilization of water resources has become very important.In entire society's water, process water occupies very large ratio, is therefore the key point of saving water resource to the Appropriate application of process water.Current industrial sewage how reuse becomes the hot issue of saving water resource, more commonly Treated sewage reusing, then embrane method desalination is used through pre-treatment, due to the singularity of the high pH of middle water, high alkalinity, high rigidity, and containing more metal ion and organism, therefore more serious scaling fouling, metallic pollution and microbial contamination can be brought to reverse osmosis system.
Add dirt dispersion agent and fungistat is the method well suppressing fouling in water circulation system and microbial contamination, the kind of dirt dispersion agent has inorganic dirt dispersion agent, natural polymer, polycarboxylate, poly-phosphate, multipolymer etc.; The kind of fungistat has chlorine and hypochlorite, bromine and bromide, chlorophenols, amine, thiazoles, aldehydes etc.
Chinese patent CN102146161A discloses a kind of polyaspartic acid complex for Scale inhibitors, this synthetics is by cis-butenedioic anhydride, obtain by polyreaction containing ammoniac compounds, water, this Scale inhibitors has good scale effect for the various ions in certain water body, but poor for the scale prevention ability of the poor high alkalinity of source water quality, hardness, good restraining effect be there is no for metallic pollution and microbial contamination simultaneously.CN1990912A discloses a kind of molybdenum phosphine system composite anti-erosion anti-sludging agent and preparation method thereof, this Scale inhibitors forms by molybdate, organophosphorus, oxygenant and vehicle are composite, this Scale inhibitors scale-inhibiting properties is better, but more excellent dissemination is not had to metal pollutant and organic pollutant, simultaneously owing to being high phosphorus formula, the pollution that organic phosphine brings can not be ignored.Above Scale inhibitors scale-inhibiting properties is all better, but owing to not taking into account the various pollutent of effective suppression, is not suitable for the reverse osmosis system that water source is poor.Therefore be adapted to the water body of high ph-values, high alkalinity, high-recovery, and have excellent scale-inhibiting properties simultaneously, the exploitation of good metal pollutant, organic pollutant dispersing property and the agent of bacteriostasis property low-phosphorus antiincrustation seems particularly important.
Summary of the invention
For the above-mentioned problems in the prior art, the invention provides a kind of preparation method of reverse osmosis dirt dispersion agent, particularly a kind of preparation method being applicable to the reverse osmosis system dirt dispersion agent of high ph-values, high alkalinity, high rigidity and high-recovery.With overcome the euroky that existing Scale inhibitors exists poor, to metal pollutant with organic pollutant dispersive ability is poor, the unconspicuous shortcoming of fungistatic effect.
For overcoming existing Problems existing, technical scheme of the present invention is: a kind of preparation method of compound reverse osmosis dirt dispersion agent, and it comprises the following steps:
(1): the preparation of dispersion agent
60 ~ 130 parts of cis-butenedioic anhydrides are added in the reactor by mass fraction, 10 ~ 30 parts of sodium hypophosphites and 100 ~ 400 parts of distilled water, 60 ~ 100 DEG C are warming up to after mixing, then in reactor, 50 ~ 90 parts of 2-acrylamide-2-methyl propane sulfonics are dripped, the mixing solutions that 90 ~ 100 parts of vinylformic acid and 300 ~ 400 parts of water form, and slowly drip 80 ~ 150 parts of initiators, at 80 ~ 90 DEG C, 1 ~ 3h is incubated after dropwising, control rate of addition and temperature of reaction, make the molecular weight of product between 2000 ~ 4000, be cooled to room temperature after insulation terminates and add 10 ~ 30 parts of polyvalent alcohols, dispersion agent is obtained after 80 ~ 120 parts of water mix,
(2): dirt dispersion agent composite
The dispersion agent obtained by 10 ~ 30 parts of steps (1), 10 ~ 30 parts of 2-phosphates-1,2,4-butane tricarboxylate, 1 ~ 10 part of sterilant, 1 ~ 15 part of tensio-active agent and 40 ~ 60 parts of distilled water mix, and by weak acid regulator solution outward appearance to transparent clear, obtain target product.
Described initiator is the mixture of any one or they in ammonium persulphate, Potassium Persulphate, hydrogen peroxide.
Described polyvalent alcohol is the mixture of any one or they in ethylene glycol, Virahol, Diethylene Glycol.
Described weak acid is the mixture of any one or they in hydrochloric acid, sulfuric acid.
Described sterilant is the mixture of any one or they in isothiazolinone, DBNPA.
Described tensio-active agent is the mixture of any one or they in Sodium dodecylbenzene sulfonate, stearic acid.
Wherein the synthesis of dispersion agent is shown below:
Dirt dispersion agent is composite to be shown below:
The present invention to fill a prescription the problems such as polluted-water in order to the lower and high phosphorus of dense water side LSI value that is poor to pollutent inhibition, that adapt to overcoming common reverse osmosis antisludging agent and exist.This dirt dispersion agent is composite by dispersion agent, Scale inhibitors, fungistat and tensio-active agent, and stirred for several hour obtains.Wherein dispersion agent is that sodium hypophosphite, cis-butenedioic anhydride and water are mixed into solution A; 2-acrylamide-2-methyl propane sulfonic, vinylformic acid and water are mixed into solution B; Then solution B is slowly dripped in solution A, drip a small amount of initiator simultaneously, and maintain the temperature at 60 ~ 100 DEG C of reactions 1 ~ 3h, synthetic intermediate C; Finally intermediate is mixed to get final dispersion agent with a small amount of polynary alcohol and water at normal temperatures; By obtained dispersion agent and Scale inhibitors, sterilant and a small amount of surfactant compound, application result shows: this dirt dispersion agent has following advantage:
1. pair calcium carbonate, calcium phosphate, barium sulfate etc. all have excellent scale-inhibiting properties, can be applicable to the reverse osmosis system of high ph-values, high alkalinity, high rigidity, high-recovery, and dense water side LSI reaches 2.8 still non-scalings;
2. pair common metallic pollution has good dissemination, has good restraining effect to microbial contamination;
3. low-phosphorous formula, not polluted-water, Environmental Safety.
Embodiment
Embodiment 1
60 parts of cis-butenedioic anhydrides, 27 parts of sodium hypophosphites and 160 parts of distilled water are added in the reactor by mass fraction, 85 DEG C are warming up to after mixing, then in reactor, 50 parts of 2-acrylamide-2-methyl propane sulfonics, 90 parts of vinylformic acid and 300 parts of water mixed solutions are dripped, and slowly drip 140 parts of initiators, at 85 DEG C of insulation 1.5h after dropwising, control rate of addition and temperature of reaction, make the molecular weight of product about 2000, be cooled to room temperature after insulation terminates and add 10 parts of Virahols, after 120 parts of water mix, obtain dispersion agent; By 10 parts of dispersion agents, 20 parts of 2-phosphate-1,2,4-butane tricarboxylates, 5 parts of sterilant, 6.5 parts of SDS and 60 part distilled water mix, and by weak acid regulator solution outward appearance to transparent clear, obtain target product.
Embodiment 2
45 parts of cis-butenedioic anhydrides, 19 parts of sodium hypophosphites and 150 parts of distilled water are added in the reactor by massfraction, 85 DEG C are warming up to after mixing, then in reactor, 67 parts of 2-acrylamide-2-methyl propane sulfonics, 95 parts of vinylformic acid and 300 parts of water mixed solutions are dripped, and slowly drip 90 parts of initiators, at 85 DEG C of insulation 2.0h after dropwising, control rate of addition and temperature of reaction, make the molecular weight of product about 2200, be cooled to room temperature after insulation terminates and add 12 parts of Virahols, after 130 parts of water mix, obtain dispersion agent; By 20 parts of dispersion agents, 25 parts of 2-phosphate-1,2,4-butane tricarboxylates, 5 parts of sterilant, 5.5 parts of SDS and 50 part distilled water mix, and by weak acid regulator solution outward appearance to transparent clear, obtain target product.
Embodiment 3
60 parts of cis-butenedioic anhydrides, 10 parts of sodium hypophosphites and 100 parts of distilled water are added in the reactor by mass fraction, 60 DEG C of effects are warming up to after mixing, then in reactor, drip the mixing solutions that 50 parts of 2-acrylamide-2-methyl propane sulfonic, 90 parts of vinylformic acid and 300 parts of water form, and slowly drip 80 parts of ammonium persulphates, at 80 DEG C, 1h is incubated after dropwising, control rate of addition and temperature of reaction, the molecular weight of product is made to be about 2000, be cooled to room temperature after insulation terminates and add 10 parts of ethylene glycol, after 80 parts of water mix, obtain dispersion agent; By 10 parts of obtained dispersion agents, 10 parts of 2-phosphate-1,2,4-butane tricarboxylates, 1 part of isothiazolinone, 1 part of Sodium dodecylbenzene sulfonate and 40 parts of distilled water mix, and by hydrochloric acid conditioning solution outward appearance to transparent clear, obtain target product.
Embodiment 4
130 parts of cis-butenedioic anhydrides, 30 parts of sodium hypophosphites and 400 parts of distilled water are added in the reactor by mass fraction, about 100 DEG C are warming up to after mixing, then in reactor, drip the mixing solutions that 90 parts of 2-acrylamide-2-methyl propane sulfonic, 100 parts of vinylformic acid and 400 parts of water form, and slowly drip 150 parts of Potassium Persulphates, at 90 DEG C, 3h is incubated after dropwising, control rate of addition and temperature of reaction, make the molecular weight of product about 4000, be cooled to room temperature after insulation terminates and add 30 parts of Virahols, after 120 parts of water mix, obtain dispersion agent; By 30 parts of obtained dispersion agents, 30 parts of 2-phosphate-1,2,4-butane tricarboxylates, 10 parts of DBNPA, 15 parts of stearic acid and 60 parts of distilled water mix, and by sulfuric acid regulation solution outward appearance to transparent clear, obtain target product.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., be all included within protection scope of the present invention.
Claims (8)
1. a preparation method for dirt dispersion agent, is characterized in that: comprise the following steps:
The first step: the preparation of dispersion agent
60 ~ 130 parts of cis-butenedioic anhydrides, 10 ~ 30 parts of sodium hypophosphites and 100 ~ 400 parts of distilled water are added in the reactor by massfraction, 60 ~ 100 DEG C are warming up to after mixing, then in reactor, 50 ~ 90 parts of 2-acrylamide-2-methyl propane sulfonics, 90 ~ 100 parts of vinylformic acid and 300 ~ 400 parts of water mixed solutions are dripped, and slowly drip 80 ~ 150 parts of initiators, at 80 ~ 90 DEG C of insulation 1 ~ 3h after dropwising, be cooled to room temperature after insulation terminates and add 10 ~ 30 parts of polyvalent alcohols, after 80 ~ 120 parts of water mix, obtain dispersion agent;
Second step: dirt dispersion agent composite
By 10 ~ 30 parts of dispersion agents, 10 ~ 30 parts of 2-phosphate-1,2,4-butane tricarboxylates, 1 ~ 10 part of sterilant, 1 ~ 15 part of tensio-active agent and 40 ~ 60 parts of distilled water mix, and by weak acid regulator solution outward appearance to transparent clear, obtain target product.
2. the preparation method of a kind of dirt dispersion agent according to claim 1, is characterized in that described initiator is the mixture of any one or they in ammonium persulphate, Potassium Persulphate, hydrogen peroxide.
3. the preparation method of a kind of dirt dispersion agent according to claim 1, is characterized in that described polyvalent alcohol is the mixture of any one or they in ethylene glycol, Virahol, Diethylene Glycol.
4. the preparation method of a kind of dirt dispersion agent according to claim 1, is characterized in that described weak acid is the mixture of any one or they in hydrochloric acid, sulfuric acid.
5. the preparation method of a kind of dirt dispersion agent according to claim 1, is characterized in that the molecular weight ranges of described dispersion agent is 2000 ~ 4000.
6. the preparation method of a kind of dirt dispersion agent according to claim 1, is characterized in that described sterilant is the mixture of any one or they in isothiazolinone, DBNPA.
7. the preparation method of a kind of dirt dispersion agent according to claim 1, is characterized in that described tensio-active agent is the mixture of any one or they in Sodium dodecylbenzene sulfonate, stearic acid.
8. the dirt dispersion agent that according to claim 1-7 prepared by preparation method.
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| CN201510560913.3A CN105130022A (en) | 2015-09-07 | 2015-09-07 | Preparation method for reverse-osmosis scale inhibition dispersion agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215706A (en) * | 2016-08-29 | 2016-12-14 | 山东天庆科技发展有限公司 | The reverse osmosis membrane antisludging agent of a kind of anti-Organic Pollution and application and preparation method |
| CN108018543A (en) * | 2017-11-03 | 2018-05-11 | 湖北海力环保科技有限公司 | A kind of without phosphorus no zinc prefilming agent of recirculated cooling water and preparation method thereof |
| CN108059258A (en) * | 2017-12-28 | 2018-05-22 | 获嘉县宏达环保材料有限公司 | A kind of industrial circulation water treatment antisludging agent and preparation method thereof |
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| US5242599A (en) * | 1992-02-07 | 1993-09-07 | Betz Laboratories, Inc. | Polymers for the treatment of boiler water |
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Patent Citations (5)
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| US5242599A (en) * | 1992-02-07 | 1993-09-07 | Betz Laboratories, Inc. | Polymers for the treatment of boiler water |
| CN102730863A (en) * | 2011-04-02 | 2012-10-17 | 中国石油化工股份有限公司 | Method for treating light oil-leaking circulating water |
| CN103394289A (en) * | 2013-08-16 | 2013-11-20 | 深圳市爱康泉水处理服务有限公司 | Reverse osmosis membrane scale inhibitor and applications thereof |
| JP2015112557A (en) * | 2013-12-12 | 2015-06-22 | 中部キレスト株式会社 | Deposition suppressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106215706A (en) * | 2016-08-29 | 2016-12-14 | 山东天庆科技发展有限公司 | The reverse osmosis membrane antisludging agent of a kind of anti-Organic Pollution and application and preparation method |
| CN108018543A (en) * | 2017-11-03 | 2018-05-11 | 湖北海力环保科技有限公司 | A kind of without phosphorus no zinc prefilming agent of recirculated cooling water and preparation method thereof |
| CN108059258A (en) * | 2017-12-28 | 2018-05-22 | 获嘉县宏达环保材料有限公司 | A kind of industrial circulation water treatment antisludging agent and preparation method thereof |
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