CN105776592A - Biodegradable scale inhibition and dispersion agent - Google Patents
Biodegradable scale inhibition and dispersion agent Download PDFInfo
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- CN105776592A CN105776592A CN201610130103.9A CN201610130103A CN105776592A CN 105776592 A CN105776592 A CN 105776592A CN 201610130103 A CN201610130103 A CN 201610130103A CN 105776592 A CN105776592 A CN 105776592A
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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
- C02F5/14—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 phosphorus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a biodegradable scale inhibition and dispersion agent.The biodegradable scale inhibition and dispersion agent comprises, by weight, 15-20 parts of sodium gluconate, 5-8 parts of benzotriazole, 20-30 parts of p-sulfonic phenylamine polyepoxysuccinic acid, 10-15 parts of sodium lignin sulfonate, 10-15 parts of acrylic-acrylate-phosphonic-sulfonate quadripolymer and 20-30 parts of water.Sodium gluconate, benzotriazole, p-sulfonic phenylamine polyepoxysuccinic acid, sodium lignin sulfonate, acrylic acid-acrylate-phosphonic acid-sulfonate quadripolymer and water are mixed, the scale inhibition and dispersion effects are effectively improved, and the scale inhibition effect is remarkably improved.The scale inhibition range is enlarged, the scale inhibition effect on calcium carbonate, calcium sulfate and barium sulfate is improved to different degrees, and good zinc scale inhibition characteristic and good corrosion inhibition are achieved.
Description
Technical field
The present invention relates to a kind of biodegradable dirt dispersion agent, belong to water-treatment technology field.
Background technology
Industrial commonly used water comes cooling large-sized machine and pipeline, but is as water resource
In short supply, water resource needs the use of circulation, owing to having metal ion in water, at long-term height
In temperature circulation, the insoluble salt of trace in water is easy for being deposited on pipeline or machine formation
Inorganic salt crust, inorganic salt crust can reduce the service life of machine, reduces the heat-transfer effect of pipeline,
More commonly used natural polymer, such as lignin and sodium humate in prior art, come
Keep stablizing of water quality, but these polymer are easily degraded by microorganisms, and scale inhibition effect
Difference.Present on market, antisludging agent is various in style, such as application publication number CN 104671442A,
Denomination of invention: a kind of for power plant cooling water process dirt dispersion agent, described dispersant by
Acrylic acid one organophosphor monosulfonate copolymer, organic phosphoric acid, sodium lignin sulfonate, hexamethyl
Phosphorus phthalein amine and water composition, wherein, the percentage by weight of each component is as follows: acrylic acid one is organic
Phosphorus monosulfonate copolymer: 20%-35%, organic phosphoric acid: 28%-38%, lignin sulfonic acid
Sodium: 5%-15%, hempa phthalein amine: 3%-4%, water: 25%-35%.This dispersant
Carbonate deposit is had the strongest complexing solubilization, can prevent incrustation scale from analysing at heat-exchanger surface
Going out, its scale effect is all effective in pH value 7.0-9.0, and polymer dispersing agent is to organic and nothing
Machine impurity has good peptizaiton.
Application publication number CN 104628159A, denomination of invention: new type water processes scale removal dispersant,
It is characterized on copolymer molecule chain there is strong acid, weak acid and two kinds different parent vigor simultaneously
Non-ionic group, demonstrates uniqueness to the iron oxide in water, calcium phosphate, trbasic zinc phosphate, calcium carbonate
Dispersibility.And also there is the highest calcium tolerance, hard at height, high-alkali, high ferro, height
Under the conditions of pH value, high temperature and oil-containing, remaining to successfully control in water, various difficulty soluble salts deposit.
It is possible not only to expand water process range, reduces cooling water quality requirement, it is also possible to improve cooling water
The condensing multiple processed, thus increase economic efficiency further and environmental effect.Life on making
Production. art is simple, low raw-material cost, and scale removal effect is obvious, easy to use, of many uses,
Do not pollute.This product is mainly used in the industry waters such as circulating water cooling system, oil field water and boiler water
Process.
Although above dispersant solves some problem of existing dispersant, but there is also following
Problem: (1) scale inhibition
The scale inhibition effect of agent is not ideal enough.For the barium sulfate in sewage, strontium sulfate scale, many scale inhibitions
Agent is poor to its scale inhibition effect.(2) scale inhibition effect is single, can only be to the one in several dirts or two
Plant effective, narrow application range.(3) many antisludging agent phosphorus contents are higher or bio-refractory,
Environment can be caused certain pollution.
Summary of the invention
The invention provides a kind of biodegradable dirt dispersion agent, solve existing antiscaling dispersion
Agent scale inhibition effect is single, antisludging agent phosphorus content is higher or bio-refractory, environment can be caused one
The problems such as fixed pollution.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate
15-20 part, BTA 5-8 part, p-sulfonic acid anilino-poly-epoxy succinic acid 20-30 part,
Sodium lignin sulfonate 10-15 part, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer
10-15 part and water 20-30 part.
Further, a preferred embodiment of the present invention: in parts by weight, including gluconic acid
15 parts of sodium, BTA 5 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 25 parts, wooden
Element sodium sulfonate 13 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 15 parts and water
27 parts.
Further, a preferred embodiment of the present invention: also include zinc salt 1-3 part
Further, a preferred embodiment of the present invention: described zinc salt is zinc chloride.
Further, a preferred embodiment of the present invention: described p-sulfonic acid anilino-polycyclic oxygen amber
The preparation method of amber acid, comprises the following steps:
The first step, raw material maleic anhydride is dissolved in deionized water, and at ice bath and stirring bar
Drip the sodium hydroxide solution of 50% under part, make maleic anhydride hydrolyze and be changed into maleic acid
Sodium salt, the rate of addition controlling NaOH makes reaction temperature be not higher than 70 DEG C；
Second step, in 50～60 DEG C of water-baths, in solution add 30% hydrogen peroxide, with tungsten
Acid sodium is catalyst, carries out the epoxidation reaction of maleate, and reaction temperature is 60～70 DEG C,
Reaction time is 1～3 hour, and the alkaline aqueous solution of dropping adjusts the pH value of mixed liquor to be 6～7,
Obtain Epoxysuccinic acid；
After 3rd step, epoxidation reaction without isolation, it is directly added into para-anilinesulfonic acid,
React 2～4 hours under conditions of pH7～8；
4th step, rise to 80～90 DEG C by the 3rd step obtains mixture temperature, add hydroxide
Calcium directly carries out polymerisation, and the reaction time is 2～5 hours, obtains faint yellow viscous shape liquid,
It is the poly-epoxy succinic acid p-sulfonic acid anilino-polyepoxy sodium succinate of para-anilinesulfonic acid.
Further, a preferred embodiment of the present invention: in the described first step, NaOH adds
Entering amount is: maleic anhydride and mol ratio=1:1.2～1:1.6 of NaOH.
Further, a preferred embodiment of the present invention: it is characterized in that: in described second step
The addition of hydrogen peroxide be: mol ratio=1:1.1～1:1.2 of maleic anhydride and hydrogen peroxide, tungsten
The addition of acid sodium is: maleic anhydride and mol ratio=1:0.005～1:0.02 of sodium tungstate.
Further, a preferred embodiment of the present invention: in the 3rd described step to amido benzene sulphur
The addition of acid is: maleic anhydride and mol ratio=1:0.01～1:0.1 of para-anilinesulfonic acid.
Further, a preferred embodiment of the present invention: the described oxygen calcium oxide in the 4th step
Addition is: maleic anhydride and mol ratio=1:0.08～1:0.23 of calcium hydroxide.
Beneficial effects of the present invention:
The present invention is by sodium gluconate, BTA, the poly-epoxy succinic of p-sulfonic acid anilino-
Acid, sodium lignin sulfonate, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer and water are mixed
Close, effectively raise the effect of antiscaling dispersion so that scale inhibition effect significantly improves.And expand
Big scale inhibition scope, not only has different journey to calcium carbonate, calcium sulfate, the scale-inhibiting properties of barium sulfate
The raising of degree, and there is the characteristic of good resistance zinc dirt, more excellent corrosion inhibition.
The antisludging agent of the present invention is combined various scale inhibition composition, on the one hand reduces organic phospho acid salt
The consumption of antisludging agent, can effectively avoid phosphorous height, the problem that can cause body eutrophication,
Another convenient addition biodegradable dirt dispersion agent, is that the water of a kind of environmental type processes medicine
Agent.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, aobvious
So, described embodiment is only a part of embodiment of the present invention rather than whole enforcement
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under work premise, broadly falls into the scope of protection of the invention.
Embodiment 1
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate
15 parts, BTA 5 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 25 parts, lignin
Sodium sulfonate 13 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 15 parts and water
27 parts.
The preparation method of described p-sulfonic acid anilino-poly-epoxy succinic acid:
To the four necks burnings being furnished with stirring condenser pipe, stirring, thermometer, pH meter, dropping funel
Add 49.00g (0.50mol) maleic anhydride in Ping, and add the dissolving of 50ml water, in stirring
Under be slowly added dropwise 50% sodium hydrate aqueous solution 55g, control solution temperature be not higher than 70 DEG C.
Then heat in the water-bath of 60 DEG C～65 DEG C, when temperature rises to 50 DEG C～60 DEG C, add
1.85g (0.006mol) catalyst sodium tungstate also stirs.Then dividing 5 times and adding total amount is 65.50g
The epoxidizing agent hydrogen peroxide (0.578mol) of 30%, added once every 30 minutes, adds every time
After hydrogen peroxide, by dropping 50% sodium hydrate aqueous solution maintain reactant liquor pH be 6～
7, the most epoxidised temperature maintains 60 DEG C～65 DEG C, hydrogen peroxide all add after at 60 DEG C
～at a temperature of 65 DEG C, add 4.33g (0.025mol) para-anilinesulfonic acid continuation reaction 3 hours,
The pH of reactant liquor is maintained to be 7～8 by the sodium hydrate aqueous solution of dropping 50%；Again by temperature
Rise to 90 DEG C, add 3.7g (0.05mol) calcium hydroxide, react 2.0 hours, obtain necessarily
The poly-epoxy succinic acid that the flaxen viscous shape liquid of solid content, i.e. para-anilinesulfonic acid are modified
P-sulfonic acid anilino-poly-epoxy succinic acid.
Embodiment 2
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate 20
Part, BTA 7 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 20 parts, lignin sulfonic acid
15 parts of sodium, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 10 parts and 20 parts of water.
The preparation method of p-sulfonic acid anilino-poly-epoxy succinic acid is substantially the same manner as Example 1, no
It is with part: in the described first step, the addition of NaOH is: maleic anhydride and hydrogen-oxygen
Change the mol ratio=1:1.2 of sodium；
The addition of the described hydrogen peroxide in second step is: maleic anhydride and hydrogen peroxide mole
Ratio=1:1.1, the addition of sodium tungstate is: maleic anhydride and the mol ratio=1:0.005 of sodium tungstate；
The addition of the described para-anilinesulfonic acid in the 3rd step is: maleic anhydride and to amido
Mol ratio=the 1:0.01 of benzene sulfonic acid；
The addition of the described oxygen calcium oxide in the 4th step is: maleic anhydride and calcium hydroxide
Mol ratio=1:0.08.
Embodiment 3
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate
18 parts, BTA 8 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 30 parts, lignin
Sodium sulfonate 10 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 13 parts and water
30 parts.
The preparation method of p-sulfonic acid anilino-poly-epoxy succinic acid is substantially the same manner as Example 1, no
It is with part: in the described first step, the addition of NaOH is: maleic anhydride and hydrogen-oxygen
Change the mol ratio=1:1.6 of sodium；
The addition of the described hydrogen peroxide in second step is: maleic anhydride and hydrogen peroxide mole
Ratio=1:1.2, the addition of sodium tungstate is: maleic anhydride and the mol ratio=1:0.01 of sodium tungstate；
The addition of the described para-anilinesulfonic acid in the 3rd step is: maleic anhydride and to amido
Mol ratio=the 1:0.05 of benzene sulfonic acid；
The addition of the described oxygen calcium oxide in the 4th step is: maleic anhydride and calcium hydroxide
Mol ratio=1:0.16.
Embodiment 4
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate
15 parts, BTA 5 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 25 parts, lignin
Sodium sulfonate 13 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 15 parts, chlorination
2 parts of zinc and 27 parts of water.
The preparation method of p-sulfonic acid anilino-poly-epoxy succinic acid is substantially the same manner as Example 1, no
It is with part: in the described first step, the addition of NaOH is: maleic anhydride and hydrogen-oxygen
Change the mol ratio=1:1.4 of sodium；
The addition of the described hydrogen peroxide in second step is: maleic anhydride and hydrogen peroxide mole
Ratio=1:1.2, the addition of sodium tungstate is: maleic anhydride and the mol ratio=1:0.02 of sodium tungstate；
The addition of the described para-anilinesulfonic acid in the 3rd step is: maleic anhydride and to amido
Mol ratio=the 1:0.1 of benzene sulfonic acid；
The addition of the described oxygen calcium oxide in the 4th step is: maleic anhydride and calcium hydroxide
Mol ratio=1:0.23.
Embodiment 5
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate
18 parts, BTA 8 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 30 parts, lignin
Sodium sulfonate 10 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 13 parts, chlorination
3 parts of zinc and 20 parts of water.
Embodiment 6
A kind of biodegradable dirt dispersion agent, in parts by weight, including sodium gluconate
18 parts, BTA 8 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 30 parts, lignin
Sodium sulfonate 10 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 13 parts, chlorination
1 part of zinc and 30 parts of water.
Performance test is tested
The product obtained in embodiment carries out the static-state scale inhibition performance test of calcium carbonate, and method is such as
Under:
The static-state scale inhibition performance test of calcium carbonate is total with reference to Sinopec of Sinopec
" cooling water analysis and experimental technique " (the Sinopec publishing house, 1993) that company writes
In " calcium phosphate deposition method " carry out.
The method of testing of the static-state scale inhibition performance of calcium sulfate is: prepare 500ml by deionized water
Containing certain density antisludging agent, 1800mg L-1Ca2+、4800mg·L-1SO4 2-Solution, adjust
PH is 7, is subsequently placed in water bath with thermostatic control, at a certain temperature after held for some time, cold
But, filter with the millipore filter of 0.22 μm, with EDTA titration measuring Ca2+Ion is dense
Degree, does blank assay simultaneously.
Barium sulfate scale inhibition performance=(Ci-CEmpty)/(C0-CEmpty) × 100%, wherein CiFor adding resistance
The steady concentration of calcium ion in solution after the solution heated at constant temperature of dirt agent；CEmptyExist for blank solution
The steady concentration of calcium ion in solution under conditions of identical；C0For calcium in solution before heated at constant temperature from
Sub-concentration.
The method of testing of the static-state scale inhibition performance of barium sulfate is: prepare 500ml by deionized water
Containing certain density antisludging agent, 60mg L-1Ba2+、100mg·L-1SO4 2-Solution, adjust pH
It is 7, is subsequently placed in water bath with thermostatic control, at a certain temperature after held for some time, cooling,
Filter with the millipore filter of 0.22 μm, measure Ba with atomic emission spectrometry (ICP)2+
Ion concentration, does blank assay simultaneously.Barium sulfate scale inhibition performance=(Ci-CEmpty)/(C0-CEmpty)
× 100%, wherein CiFor adding after the solution heated at constant temperature of antisludging agent the steady of calcium in solution or barium ions
Determine concentration；CEmptyDense for stablizing of calcium in blank solution at identical conditions solution or barium ions
Degree；C0For calcium in solution before heated at constant temperature or barium ions concentration.
The stability test of zinc ion is with reference to China Petrochemical Corporation of Sinopec
In " cooling water analysis and experimental technique " (the Sinopec publishing house, 1993) that write
" deposition of zinc salt method " carry out.
The test of corrosion inhibition is with reference to " National Standard of the People's Republic of China GB/T18175-
2000, water treatment agent corrosion inhibition mensuration rotary hanging plate method ", use RCC-II
Corrosion inhibition experiment, temperature 45 C, rotating speed is carried out on type rotary hanging plate corrosion tester
75r/min, the most pre-film lacing film, experimental period 72 hours；Carbon steel test piece: 20#Carbon steel,
50mm×25mm×2mm.Hard water quality high-alkali, high is selected in scale inhibition experiment, and water quality index is such as
Shown in table 1.
Table 1: inhibition experiment water quality
Note: total hardness, basicity, Ca2+All with CaCO3Meter, mg L-1
Performance test experimental result is shown in Table 2, from the experimental result of table 2 it can be seen that the present invention
Biodegradable dirt dispersion agent, can effectively stop CaCO3、CaSO4、BaSO4、
The deposition of zinc salt, is a kind of polynary dirt dispersion agent, and has certain corrosion inhibition.
The performance test results of table 2 biodegradable dirt dispersion agent
Note: [a] calcium carbonate scale inhibition experimental pharmacy concentration is 10mg L-1；[b] calcium sulfate scale inhibition experimental drug
Agent concentration is 15mg L-1；[c] barium sulfate scale inhibition experimental pharmacy concentration is 5mg L-1；[d] zinc salt
Sedimentation experiment drug concentration is 20mg L-1；[e] corrosion inhibition experimental pharmacy concentration is 150
mg·L-1。
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all
Any amendment of being made in protection scope of the present invention, equivalent etc., should be included in this
Within bright protection domain.
Claims (9)
1. a biodegradable dirt dispersion agent, it is characterized in that: in parts by weight, including sodium gluconate 15-20 part, BTA 5-8 part, p-sulfonic acid anilino-poly-epoxy succinic acid 20-30 part, sodium lignin sulfonate 10-15 part, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 10-15 part and water 20-30 part.
A kind of biodegradable dirt dispersion agent the most according to claim 1, it is characterized in that: in parts by weight, including sodium gluconate 15 parts, BTA 5 parts, p-sulfonic acid anilino-poly-epoxy succinic acid 25 parts, sodium lignin sulfonate 13 parts, acrylic acid-acrylic ester-phosphonic acids-sulfonate quadripolymer 15 parts and 27 parts of water.
A kind of biodegradable dirt dispersion agent the most according to claim 1, it is characterised in that: also include zinc salt 1-3 part.
A kind of biodegradable dirt dispersion agent the most according to claim 3, it is characterised in that: described zinc salt is zinc chloride.
A kind of biodegradable dirt dispersion agent the most according to claim 1, it is characterised in that: the preparation method of described p-sulfonic acid anilino-poly-epoxy succinic acid, comprise the following steps:
The first step, being dissolved in deionized water by raw material maleic anhydride, and drip the sodium hydroxide solution of 50% under ice bath and stirring condition, make maleic anhydride hydrolyze and be changed into the sodium salt of maleic acid, the rate of addition of control NaOH makes reaction temperature be not higher than 70 DEG C；
Second step, in 50～60 DEG C of water-baths, the hydrogen peroxide of 30% is added in solution, with sodium tungstate as catalyst, carry out the epoxidation reaction of maleate, reaction temperature is 60～70 DEG C, reaction time is 1～3 hour, and the alkaline aqueous solution of dropping adjusts the pH value of mixed liquor to be 6～7, obtains Epoxysuccinic acid；
After 3rd step, epoxidation reaction without isolation, it is directly added into para-anilinesulfonic acid, reacts 2～4 hours under conditions of pH7～8；
4th step, rise to 80～90 DEG C by the 3rd step obtains mixture temperature, add calcium hydroxide and directly carry out polymerisation, reaction time is 2～5 hours, obtains faint yellow viscous shape liquid, is the poly-epoxy succinic acid p-sulfonic acid anilino-polyepoxy sodium succinate of para-anilinesulfonic acid.
A kind of biodegradable dirt dispersion agent the most according to claim 5, it is characterised in that: in the described first step, the addition of NaOH is: maleic anhydride and mol ratio=1:1.2～1:1.6 of NaOH.
A kind of biodegradable dirt dispersion agent the most according to claim 5, it is characterized in that: it is characterized in that: the addition of the described hydrogen peroxide in second step is: maleic anhydride and mol ratio=1:1.1～1:1.2 of hydrogen peroxide, the addition of sodium tungstate is: maleic anhydride and mol ratio=1:0.005～1:0.02 of sodium tungstate.
A kind of biodegradable dirt dispersion agent the most according to claim 5, it is characterised in that: the addition of the described para-anilinesulfonic acid in the 3rd step is: maleic anhydride and mol ratio=1:0.01～1:0.1 of para-anilinesulfonic acid.
A kind of biodegradable dirt dispersion agent the most according to claim 5, it is characterised in that: it is characterized in that: the addition of the described oxygen calcium oxide in the 4th step is: maleic anhydride and mol ratio=1:0.08～1:0.23 of calcium hydroxide.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860521A (en) * | 2021-11-05 | 2021-12-31 | 山东艾普特暖通技术有限公司 | Solid phosphorus-free water quality stabilizer for heating water and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837100A (en) * | 2005-03-23 | 2006-09-27 | 上海万森水处理有限公司 | Dirt dispersion agent for cooling water treatment in electric power plant |
| CN1919752A (en) * | 2006-09-11 | 2007-02-28 | 北京瀚博英电力科技有限公司 | Environment-friendly type composite corrosion and scale inhibitor |
| CN102391491A (en) * | 2011-09-26 | 2012-03-28 | 河南清水源科技股份有限公司 | Biodegradable water treatment agent p-sulfonicphenylaminopolyepoxysuccinic acid and preparation method thereof |
-
2016
- 2016-03-08 CN CN201610130103.9A patent/CN105776592A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837100A (en) * | 2005-03-23 | 2006-09-27 | 上海万森水处理有限公司 | Dirt dispersion agent for cooling water treatment in electric power plant |
| CN1919752A (en) * | 2006-09-11 | 2007-02-28 | 北京瀚博英电力科技有限公司 | Environment-friendly type composite corrosion and scale inhibitor |
| CN102391491A (en) * | 2011-09-26 | 2012-03-28 | 河南清水源科技股份有限公司 | Biodegradable water treatment agent p-sulfonicphenylaminopolyepoxysuccinic acid and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860521A (en) * | 2021-11-05 | 2021-12-31 | 山东艾普特暖通技术有限公司 | Solid phosphorus-free water quality stabilizer for heating water and preparation method thereof |
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