CN102807285A - Environment-friendly branched polyether water treatment agent and preparation method thereof - Google Patents
Environment-friendly branched polyether water treatment agent and preparation method thereof Download PDFInfo
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Abstract
The invention provides an environment-friendly branched polyether water treatment agent (APEZ), and relates to a phosphorus-free and nitrogen-free and biodegradable environment-friendly branched polyether water treatment agent and a preparation method of the water treatment agent, belongs to the field of preparation and application of water treatment agents, and is applicable to a circulating cooling water system, in particular to high-calcium cooling water. The water treatment agent is prepared by subjecting polyether carboxylic acid reactive monomer and vinyl unsaturated double-bond containing monomer to free-radical copolymerization, and the water treatment agent has a structural formula shown in the description, wherein A is a repetition structure unit obtained by copolymerizing the vinyl unsaturated double-bond containing monomer, and the repetition structure unit has the polymerization degree x of 1 to 5000, and polymerization degree y of 1 to 5000, and the repetitive unit m is 1 to 100. A dirt dispersion agent is biodegradable, has excellent effect of inhibiting scales from Ca3 (PO4)2, CaCo3 and CaSO4, and high dispersion performance, and is an environment-friendly polyether water treatment agent.
Description
Technical field
The present invention relates to the biodegradable environment-friendly type polyethers of a kind of without phosphorus, non-nitrogen water conditioner and preparation method thereof, belong to dirt dispersion agent preparation and application category, be applicable to the industrial colling recycle system, be particularly useful for the high calcium cooling water quality.
Background technology
Along with the fast development of oil, chemical industry and steel industry, industrial cycle cooling water and industry sewage quantity constantly increase.Yet be dissolved with various salts in the service water; Be deposited on the heat-exchange equipment internal surface like these difficulty soluble salts such as hydrocarbonate, carbonate, vitriol, silicate, phosphoric acid salt and can cause that fluid flow resistance increases, heat transfer efficiency sharply descends, even equipment is stopped up and influence ordinary production.Industrial general employing is added antisludging agent and is prevented the formation of inorganic scale or suppress its deposition in circulation, antisludging agent is to prevent that incrustation scale and dirt from producing or suppressing the chemical agent of its deposition growing.Mostly the more and scale inhibition effect of research at present Scale inhibitors preferably is phosphoric acid salt; Like hydroxy ethylene diphosphonic acid (HEDP), ATMP (AMP) and 2 – phosphonic acids Ding Wan – 1; 2; 4 – tricarboxylic acid (PBTC) etc., easy hydrolysis of these phosphoric acid salt Scale inhibitorss or the sterilant oxygenolysis that is existed in the industrial cycle water system generate PO
4 3-The higher Ca of content in the ion, warp and water
2+Effect generates polytype calcium phosphate precipitation; The phosphoric acid salt Scale inhibitors is done the time spent and not only is easy to generate calcium phosphate deposition playing scale inhibitor; And because the phosphorous nutritive ingredient that can also serve as bacterium and algae in the water, the eutrophication that is prone to cause the water source causes the pollution of water resources.The more Scale inhibitors of present another kind of research is without phosphorus carboxyl acids antisludging agent such as HPMA (HPMA), poly-epoxy succinic acid (PESA), ROHM (PAA).But this type of without phosphorus carboxyl acids antisludging agent mainly is used for hindering calcium carbonate scale, and is not good to the scale inhibition effect of calcium phosphate scale, though USP 5062962 shows that with US5147555 PESA is to CaCO
3And CaSO
4Scale inhibition effect is preferably arranged, but relatively poor to the effect of resistance calcium phosphate with the ability of disperseing iron.U.S. Betz company released co-polymer of sulfonate AA-APES of new generation (vinylformic acid allyloxy polyethoxye vitriol multipolymer) in 2003, it hinders Ca
3(PO
4)
2Efficient obviously improve, AA-APES has higher holding capacity to the water hardness, suspended substance, temperature, is a new generation resistance Ca
3(PO
4)
2The phosphate-free water treatment agent of dirt, but it is relatively poor still to contain the element sulphur and the resistance calcium carbonate scale effect that cause the water source eutrophication among the APES.Therefore develop focus and the focus that low-phosphorous or without phosphorus green water conditioner becomes domestic and international concern day by day; The present invention adopts R-GLYCIDOL open loop green reaction technology to make the polyether reactant monomer, and then has prepared a kind of without phosphorus non-nitrogen and the dendritic polyethers water conditioner of biodegradable environment-friendly type.
Summary of the invention
Technical problem: the purpose of this invention is to provide dendritic polyethers water conditioner of a kind of environment-friendly type (APEZ) and preparation method thereof, this dirt dispersion agent is biodegradable, and has excellent resistance Ca
3(PO
4)
2, CaCO
3, CaSO
4The dirt effect has good dispersing property simultaneously, is a kind of eco-friendly polyethers water conditioner.
Technical scheme: dirt dispersion agent of the present invention (APEZ) be with the polyether reactant monomer with contain vinyl unsaturated double-bond monomer and carry out free-radical polymerized and get, its general structure is:
Wherein: A is the repeated structural unit that contains behind the vinyl unsaturated double-bond monomer polymerization, and polymerization degree x is 1 ~ 5000, and polymerization degree y is 1 ~ 5000, and number of repeat unit m is 1 ~ 100.
The preparation method of the above-mentioned dendritic polyethers water conditioner of a kind of environment-friendly type is:
Under the N2 atmosphere, be benchmark with allyl polyglycol monoether quality, just the highly basic of allyl polyglycol monoether and 0.5～2 times of allyl polyglycol monoether quality adds in the reaction kettle, at N
2Under the atmosphere, behind 20 ~ 120 ℃ of alkalization 1 ~ 8h, add the R-GLYCIDOL of 0.5～10 times of allyl polyglycol monoether quality; 50 ~ 150 ℃ are reacted 1 ~ 10h down; Reaction finishes and adds the Succinic anhydried of 0.5～10 times of allyl polyglycol monoether quality, and reaction 1 ~ 10h gets the polyether reactant monomer.After temperature transferred to 50 ~ 95 ℃; The water that contains vinyl unsaturated double-bond monomer, 0.1 ~ 5 times of allyl polyglycol monoether quality that adds 0.2 ~ 5 times of allyl polyglycol monoether quality; The dropping mass percentage concentration is 5%～60% inorganic initiator solution behind the mixing; The add-on of no organic initiators is 0.01 ~ 0.5 times of allyl polyglycol monoether quality, and 0.5～6h drips off, and drips off continued and reacts 0.5～10h down at 50 ~ 95 ℃; Be chilled to room temperature, make the dendritic polyethers water conditioner of 5 ~ 80wt% environment-friendly type.
The vinyl unsaturated double-bond monomer that contains described in the preparation method of the above-mentioned dendritic polyethers water conditioner of a kind of environment-friendly type is a vinylformic acid; Methylacrylic acid; Toxilic acid; Maleic anhydride; Methylene-succinic acid; Fumaric acid; Vinylformic acid hydroxyl methyl esters; Hydroxy methyl methacrylate; Hydroxyethyl acrylate; Rocryl 400; Propylene glycol monoacrylate; Rocryl 410; The vinylformic acid hydroxy butyl ester; The own ester of vinylformic acid hydroxyl; Monomethyl maleate; Ethyl maleate; Toxilic acid list isopropyl ester; The toxilic acid isobutylate; The single rare propyl ester in Malaysia; The toxilic acid list tert-butyl ester; Monomethyl fumarate; Monomethyl ester; Fumaric acid list propyl ester; The combination of one or more of fumaric acid two hydroxypropyl acrylates or fumaric acid mono.Described highly basic is NaOH, KOH, CH
3ONa, C
2H
5The combination of one or more of ONa.Described no organic initiators is Sodium Persulfate, Potassium Persulphate, lay particular stress on-sulfinic acid sodium, lay particular stress on-sulfinic acid potassium, one or more the combination in persulfonic acid sodium, persulfonic acid potassium or the hydrogen peroxide.
Beneficial effect: the dendritic polyethers water conditioner of environment-friendly type of the present invention has following excellent properties:
(1) eutrophy element such as not phosphorous, the nitrogen of the dendritic polyethers water conditioner of this environment-friendly type, have favorable biological degradability can, be a kind of novel environment-friendly type water treatment agent.Its preparation technology's green environment is friendly, and building-up process adopts safety, inexpensive water as reaction solvent, adopts " treating different things alike " reactive mode, need not to separate, and is simple to operation, production cost is lower.
(2) contain the strong polyether group of wetting ability in the dendritic polyethers water conditioner of this environment-friendly type structure; And contain hydroxyl, carboxylic acid ion than multipotency and calcium ion chelating; Calcium phosphate, lime carbonate, calcium sulfate dirt in the industrial circulating cooling water system there is restraining effect efficiently; Be particluarly suitable for using in the high calcium cooling water quality, and red stone is had good dissemination.
(3) the dendritic polyethers water conditioner of this environment-friendly type is used the Succinic anhydried end-blocking, and water conditioner thermostability more not end-blocking Scale inhibitors strengthens, and is difficult for decomposing.And scale inhibition efficient improves, and is particluarly suitable for using under the middle and high temperature.
Static resistance Ca of the present invention
3(PO
4)
2The dirt experiment is undertaken by experiment 402 (GB50050-95) of China PetroChemical Corporation's " water coolant analysis and experimental technique "; The calculating of the lime carbonate in the scale-inhibiting properties test experiments, calcium sulfate scale inhibition performance is carried out according to " the oil and gas industry standard-SY/T5673-1993 of the People's Republic of China "; Disperse Fe (III) sedimentation experiment to carry out " cooling water treatment agent disperses the evaluation of deposition of iron ability " on " Treatment of Industrial Water " 1991 06 phases by Lu Jianmin; Characterize and disperse Fe (III) performance to represent with the transmittance that contains Fe (III) solution, the low more expression of transmittance disperses the performance of Fe (III) good more.
Embodiment
Instance 1: at N
2Adding 100g allyl polyglycol monoether adds 8gNaOH behind alkalization 2h under 60 ℃ in the reaction kettle of protection, adds 60g R-GLYCIDOL reaction 4h under 80 ℃, adds Succinic anhydried 80g then and reacts 2h; Reaction finishes, temperature is transferred to 75 ℃ after, add 100g vinylformic acid, 100g water; Drip Potassium Persulphate (15g) (being dissolved in 100g water) behind the mixing, after 3h dropwises, be warming up to 80 ℃ and continue reaction 5h; After reducing to room temperature, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
When the APEZ of gained is 6mg/L at dosage, to Ca
3(PO
4)
2Scale inhibition performance can reach 97.6%, to CaCO
3Scale inhibition performance is 90.1%, to CaSO
4Scale inhibition performance is 98.8%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 14.8%.
Instance 2: at N
2Adding 150g allyl polyglycol monoether adds 20g KOH behind alkalization 3h under 65 ℃ in the reaction kettle of protection, adds 100g R-GLYCIDOL reaction 4h under 80 ℃, adds Succinic anhydried 150g then and reacts 3h; Reaction finishes, temperature is transferred to 75 ℃ after, add 120g maleic anhydride, 220g water; Drip Potassium Persulphate (20g) (being dissolved in 180g water) behind the mixing, after 2h dropwises, be warming up to 90 ℃ and continue reaction 4h; After reducing to room temperature, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 98.6%, to CaCO
3Scale inhibition performance is 91.5%, to CaSO
4Scale inhibition performance is 99.2%., the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 16.4%.
Instance 3: at N
2Add 180g allyl polyglycol monoether in the reaction kettle of protection, add 30g CH
3CH
2ONa adds 200g R-GLYCIDOL reaction 8h under 80 ℃ behind alkalization 3h under 55 ℃, add Succinic anhydried 120g then and react 2h; Reaction finishes; After temperature transferred to 75 ℃, add 150g vinylformic acid, 150g maleic anhydride, 200g water, drip Potassium Persulphate (15g), Sodium Persulfate (15g) mixture (being dissolved in 240g water) behind the mixing; After 3h dropwises; Be warming up to 80 ℃ and continue reaction 6h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 8mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 97.3%, to CaCO
3Scale inhibition performance is 91.6%, to CaSO
4Scale inhibition performance is 98.3%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 14.6%.
Instance 4: at N
2Adding 200g allyl polyglycol monoether adds 35g NaOH behind alkalization 2h under 65 ℃ in the reaction kettle of protection, adds 100g R-GLYCIDOL reaction 8h under 80 ℃, adds Succinic anhydried 180g then and reacts 6h; Reaction finishes; After temperature transferred to 70 ℃, add 200g fumaric acid, 280g water, drip Potassium Persulphate (10g), Sodium Persulfate (10g) behind the mixing, lay particular stress on-sulfinic acid sodium (10g) mixture (being dissolved in 200g water); After 4h dropwises; Be warming up to 80 ℃ and continue reaction 8h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 97.8%, to CaCO
3Scale inhibition performance is 88.7%, to CaSO
4Scale inhibition performance is 98.9%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 15.1%.
Instance 5: at N
2Add 100g allyl polyglycol monoether in the reaction kettle of protection, adding 15gNaOH adds the 100g R-GLYCIDOL and reacts 8h down, adding Succinic anhydried 100g reaction 2h in 80 ℃ behind alkalization 2h under 90 ℃; Reaction finishes; After temperature transferred to 80 ℃, add 100g vinylformic acid hydroxyl methyl esters, 380g water, drip Potassium Persulphate (10g), Sodium Persulfate (10g) mixture (being dissolved in 260g water) behind the mixing; 1.5h after dropwising; Be warming up to 95 ℃ and continue reaction 6h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 98.6%, to CaCO
3Scale inhibition performance is 92.4%, to CaSO
4Scale inhibition performance is 99.2%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 15.6%.
Instance 6: at N
2Add 100g allyl polyglycol monoether in the reaction kettle of protection, adding 20gNaOH adds the 150g R-GLYCIDOL and reacts 6h down, adding Succinic anhydried 120g reaction 2h in 80 ℃ behind alkalization 2h under 70 ℃; Reaction finishes; After temperature transferred to 60 ℃, add 100g vinylformic acid hydroxyl methyl esters, 200g water, drip Potassium Persulphate (5g), Sodium Persulfate (10g) mixture (being dissolved in 150g water) behind the mixing; After 3h dropwises; Be warming up to 80 ℃ and continue reaction 6h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 99.3%, to CaCO
3Scale inhibition performance is 94.2%, to CaSO
4Scale inhibition performance is 98.7%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 14.5%.
Instance 7: at N
2Add 100g allyl polyglycol monoether in the reaction kettle of protection, adding 20g KOH adds the 150g R-GLYCIDOL and reacts 6h down, adding Succinic anhydried 150g reaction 3h in 80 ℃ behind alkalization 2h under 60 ℃; Reaction finishes; After temperature transferred to 60 ℃, add 60g vinylformic acid, 60g methylene-succinic acid, 40g Rocryl 400,300g water, drip Potassium Persulphate (5g), Sodium Persulfate (5g) mixture (being dissolved in 150g water) behind the mixing; After 3h dropwises; Be warming up to 80 ℃ and continue reaction 6h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 8mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 99.4%, to CaCO
3Scale inhibition performance is 92.6%, to CaSO
4Scale inhibition performance is 98.8%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 14.5%.
Instance 8: at N
2Add 280g allyl polyglycol monoether in the reaction kettle of protection, adding 50g KOH adds the 300g R-GLYCIDOL and reacts 8h down, adding Succinic anhydried 150g reaction 4h in 70 ℃ behind alkalization 4h under 80 ℃; Reaction finishes; After temperature transferred to 80 ℃, add 50g methylacrylic acid, 60g maleic anhydride, 50g fumaric acid, 350g water, drip Potassium Persulphate (10g), Sodium Persulfate (20g) mixture (being dissolved in 200g water) behind the mixing; After 4h dropwises; Be warming up to 80 ℃ and continue reaction 8h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 98.7%, to CaCO
3Scale inhibition performance is 90.1%, to CaSO
4Scale inhibition performance is 98.5%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 14.4%.
Instance 9: at N
2Add 200g allyl polyglycol monoether in the reaction kettle of protection, add 30gCH
3ONa adds the 200g R-GLYCIDOL and reacts 8h down, adding Succinic anhydried 200g reaction 5h in 60 ℃ behind alkalization 3h under 60 ℃; Reaction finishes; After temperature transferred to 80 ℃, add 60g methylacrylic acid, 60g fumaric acid two hydroxypropyl acrylates, 280g water, drip Potassium Persulphate (10g), Sodium Persulfate (10g), persulfonic acid potassium (5g) mixture (being dissolved in 200g water) behind the mixing; After 4h dropwises; Be warming up to 80 ℃ and continue reaction 8h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 98.9%, to CaCO
3Scale inhibition performance is 94.7%, to CaSO
4Scale inhibition performance is 98.5%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 17.1%.
Instance 10: at N
2Add 180g allyl polyglycol monoether in the reaction kettle of protection, add 20gCH
3ONa adds the 120g R-GLYCIDOL and reacts 8h down, adding Succinic anhydried 150g reaction 3h in 60 ℃ behind alkalization 3h under 70 ℃; Reaction finishes; After temperature transferred to 80 ℃, add 50g methylacrylic acid, 60g fumaric acid two hydroxypropyl acrylates, 50g fumaric acid mono, 280g water, drip Potassium Persulphate (15g), Sodium Persulfate (10g), persulfonic acid potassium (10g) mixture (being dissolved in 300g water) behind the mixing; After 4h dropwises; Be warming up to 80 ℃ and continue reaction 8h, reduce to room temperature after, make the dendritic polyethers water conditioner of environment-friendly type (APEZ).
Gained APEZ Scale inhibitors is when dosage is 6mg/L, to Ca
3(PO
4)
2Scale inhibition performance can reach 99.2%, to CaCO
3Scale inhibition performance is 92.9%, to CaSO
4Scale inhibition performance is 97.1%, and the transmittance that contains Fe (III) solution that characterizes the dispersion ferrum property is 15.8%.
Claims (5)
1. dendritic polyethers water conditioner of environment-friendly type, it is characterized in that this water conditioner with the polyether reactant monomer with contain vinyl unsaturated double-bond monomer and carry out free-radical polymerized and get, its general structure is:
Wherein: A is the repeated structural unit that contains behind the vinyl unsaturated double-bond monomer polymerization, and polymerization degree x is 1 ~ 5000, and polymerization degree y is 1 ~ 5000, and repeating unit m is 1 ~ 100.
2. the preparation method of the dendritic polyethers water conditioner of environment-friendly type as claimed in claim 1 is characterized in that this preparation method is:
At N
2Under the atmosphere, be benchmark, in the highly basic adding reaction kettle with allyl polyglycol monoether and 0.5～2 times of allyl polyglycol monoether quality with allyl polyglycol monoether quality; Behind 20 ~ 120 ℃ of alkalization 1 ~ 5h; The R-GLYCIDOL that adds 0.5～10 times of allyl polyglycol monoether quality, 50 ~ 150 ℃ are reacted 1 ~ 10h down, and reaction finishes and adds the Succinic anhydried of 0.5～10 times of allyl polyglycol monoether quality; Reaction 1 ~ 10h gets the polyether reactant monomer; After temperature transferred to 50 ~ 95 ℃; The water that contains vinyl unsaturated double-bond monomer, 0.1 ~ 5 times of allyl polyglycol monoether quality that adds 0.2 ~ 5 times of allyl polyglycol monoether quality; The dropping mass percentage concentration is 5%～60% inorganic initiator solution behind the mixing; The add-on of no organic initiators is 0.01 ~ 0.5 times of allyl polyglycol monoether quality, and 0.5～6h drips off, and drips off continued and reacts 0.5～10h down at 50 ~ 95 ℃; Be chilled to room temperature, make the dendritic polyethers water conditioner of 5 ~ 80wt% environment-friendly type.
3. the preparation method of the dendritic polyethers water conditioner of a kind of environment-friendly type according to claim 2 is characterized in that described one or more the combination that vinyl unsaturated double-bond monomer is the single rare propyl ester of vinylformic acid, methylacrylic acid, maleic anhydride, methylene-succinic acid, toxilic acid, fumaric acid, vinylformic acid hydroxyl methyl esters, hydroxy methyl methacrylate, Hydroxyethyl acrylate, Rocryl 400, Propylene glycol monoacrylate, Rocryl 410, vinylformic acid hydroxy butyl ester, the own ester of vinylformic acid hydroxyl, monomethyl maleate, ethyl maleate, toxilic acid list isopropyl ester, toxilic acid isobutylate, the toxilic acid list tert-butyl ester, Malaysia, monomethyl fumarate, monomethyl ester, fumaric acid list propyl ester, fumaric acid two hydroxypropyl acrylates or fumaric acid mono that contains.
4. the preparation method of the dendritic polyethers water conditioner of environment-friendly type according to claim 2 is characterized in that this described highly basic is NaOH, KOH, CH
3ONa, C
2H
5The combination of one or more of ONa.
5. the preparation method of the dendritic polyethers water conditioner of environment-friendly type according to claim 2, it is characterized in that described no organic initiators be Sodium Persulfate, Potassium Persulphate, lay particular stress on-sulfinic acid sodium, lay particular stress on-sulfinic acid potassium, one or more the combination in persulfonic acid sodium, persulfonic acid potassium or the hydrogen peroxide.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138679A (en) * | 2019-12-31 | 2020-05-12 | 青岛科凯达新能源科技有限公司 | Bio-based liquid warm mixing agent and preparation method and application thereof |
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|---|---|---|---|---|
| US20030052303A1 (en) * | 2001-03-15 | 2003-03-20 | Betzdearborn Inc. | Method for controlling scale formation and deposition in aqueous systems |
| JP2007144369A (en) * | 2005-11-30 | 2007-06-14 | Kurita Water Ind Ltd | Scale inhibiting agent and method for water system |
| CN101041516A (en) * | 2007-03-16 | 2007-09-26 | 湖北省化学研究院 | Preparation method for highly effective maleic anhydride series polymer antisludging agent |
| CN102491541A (en) * | 2011-11-25 | 2012-06-13 | 东南大学 | Green environment-friendly corrosion and scale inhibiting dispersant and its preparation method |
| CN102516472A (en) * | 2011-11-25 | 2012-06-27 | 东南大学 | Environment-friendly polyether antisludging agent and preparation method thereof |
-
2012
- 2012-08-01 CN CN2012102724672A patent/CN102807285B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030052303A1 (en) * | 2001-03-15 | 2003-03-20 | Betzdearborn Inc. | Method for controlling scale formation and deposition in aqueous systems |
| JP2007144369A (en) * | 2005-11-30 | 2007-06-14 | Kurita Water Ind Ltd | Scale inhibiting agent and method for water system |
| CN101041516A (en) * | 2007-03-16 | 2007-09-26 | 湖北省化学研究院 | Preparation method for highly effective maleic anhydride series polymer antisludging agent |
| CN102491541A (en) * | 2011-11-25 | 2012-06-13 | 东南大学 | Green environment-friendly corrosion and scale inhibiting dispersant and its preparation method |
| CN102516472A (en) * | 2011-11-25 | 2012-06-27 | 东南大学 | Environment-friendly polyether antisludging agent and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138679A (en) * | 2019-12-31 | 2020-05-12 | 青岛科凯达新能源科技有限公司 | Bio-based liquid warm mixing agent and preparation method and application thereof |
| CN111138679B (en) * | 2019-12-31 | 2021-10-19 | 青岛科凯达新能源科技有限公司 | Bio-based liquid warm mixing agent and preparation method and application thereof |
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