CN104556426B - The preparation method of without phosphorus compound corrosion inhibiting and descaling agent - Google Patents
The preparation method of without phosphorus compound corrosion inhibiting and descaling agent Download PDFInfo
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- CN104556426B CN104556426B CN201410814313.0A CN201410814313A CN104556426B CN 104556426 B CN104556426 B CN 104556426B CN 201410814313 A CN201410814313 A CN 201410814313A CN 104556426 B CN104556426 B CN 104556426B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses the preparation method of a kind of without phosphorus compound corrosion inhibiting and descaling agent, belong to water treatment field.This corrosion inhibiting and descaling agent is by 20 30 parts of Calcium d-tartrates, 10 20 parts of octadecyl glycosides, 8 12 parts of BTAs, 35 parts of Bis(hydroxymethyl)imidazolidinyl urea, 15 20 parts of methyl-monosilane alcohol, 10 15 parts of allantoin, 12 15 parts of 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, 8 10 parts of glycerol polymethacrylates and 60 70 parts of water compositions, without organic or Phos in the corrosion inhibiting and descaling agent component of the present invention, it it is the compound corrosion inhibiting and descaling agent of a kind of high molecular polymer and inorganic salt combination, there is consumption few, to environment, the advantages such as human body and crop are safe from harm, it it is a kind of environmentally friendly corrosion inhibiter；It is simple that the preparation method of the present invention has technique, reasonable in design, mild condition and easily operating, and is suitable to commercial application.
Description
Technical field
The invention belongs to water treatment field, more particularly, it relates to the preparation method of a kind of without phosphorus compound corrosion inhibiting and descaling agent.
Background technology
China is the country of a water resource famine, has per capita water resource 2000 m less than United Nations Commission for Sustainable Development's review of the water resource per capita of 18 provinces, municipalities and autonomous regions3, 10 provinces, municipalities and autonomous regions are less than 1000 m3The minimum line of existence, the wretched insufficiency of water resource will affect normal productive life, affects expanding economy, and recirculated cooling water is the rich and influential family of water for industrial use.Due to the worsening shortages of freshwater resources, industrial colling treatment agent is increasingly subject to people's attention.Organic phospho acid is a now widely used class water treatment agent, and it is the exploitation of external the mid-1960s, the class water treatment agent being identified the seventies, have good chemical stability, heat-resisting quantity and have that consumption is few concurrently, the feature such as inhibition and scale effect.Additionally, organic phospho acid has the sequestering power of excellence to many metal ions, they solve system and produce the problem of calcium carbonate scale, and C-P key exists makes its stable chemical performance, more high temperature resistant, has substantially " threshold effect " and " cooperative effect ".Its defect is calcium phosphate scale, zinc dirt and the ferrum oxide deposition problems that organic phospho acid can not suppress to produce in phosphorus system and phosphorus zinc system water treatment formula effectively, and phosphorus-containing wastewater discharge causes body eutrophication and marine red tide problem.Abroad having been carried out limiting phosphorus or prohibiting phosphorus measure, China advocates low-phosphorous and without phosphorus product exploitation the most energetically.Copolymer antisludging agent is to enter a kind of New Type Water Treatment Chemicals of exploitation after the eighties, and the pollution good, without phosphorus of its superior performance, compatibility, development prospect are wide, but its price is high, is used alone and can not meet water and process needs, thus need to add other components compounding after use.
Through retrieval, Chinese patent application publication number CN
101560022 B, the patent document in filing date on May 26th, 2009 discloses a kind of composite slow-corrosion scale resistor, by organic phospho acid 15%～30%, acrylic acid or acrylic copolymer 10%～20%, poly 2%～10%, azole derivative 1%～3%, multi-element organic amine sulfonate 15%～30%, dimethylformamide or ethanol 2%～6%, the raw material of water 20%～35% mass proportioning is made, this invention composite slow-corrosion scale resistor is used for the middle water system as recirculated cooling water, can solve the problem that the corrosion that equipment is caused by middle water recirculated water, but in this composite slow-corrosion scale resistor, phosphorus content is higher and complicated components, it is only applicable to the middle water system as recirculated cooling water, application is restricted.Chinese patent application publication number CN
null101767885 A，The patent document in filing date on January 12nd, 2010 discloses a kind of phosphate-free corrosion inhibition antisludging agent for water treatment facilities，Its active component weight ratio is: itaconic acid-propenoic acid-ACR 18-20%，2-acrylamide-2-methyl propane sulfonic acid-acrylamide polymer 8-10%，Poly-epoxy succinic acid 9-11%，Hydrolytic polymaleic anhydride 10-12%，Fluorescein 0.5-1.5%，Water 45-53%，The key component of this invention is natural polymer，There is natural cyclic structure，There is the active group of chelating high volence metal ion，There is certain corrosion and scale inhibition performance，But anticorrosion-antiscaling effect is bad and fluorescence in component have certain toxicity，Human body there is injury，The secondary pollution of water body can be caused.Therefore, process needs to meet current water, be badly in need of developing a kind of toxicity low, environment, human body and crop are safe from harm, and the corrosion inhibiting and descaling agent that corrosion-mitigation scale-inhibition efficiency is high.Report currently, with respect to slow-release scale inhibitor preparation method is little, and the component of slow-release scale inhibitor is different, and its preparation method is inevitable also very big difference, does not has reference between the preparation method of different slow-release scale inhibitors.Therefore, a kind of recent studies on slow-release scale inhibitor out is needed to work out a kind of preparation method being suitable for it accordingly.
Summary of the invention
1.
Problem to be solved
Usage amount is there is big for existing corrosion inhibiting and descaling agent, to environment with the presence of pollute and corrosion inhibiting and descaling agent preparation method range of application narrow, slow-release scale inhibitor preparation for new component does not have the problems such as reference, the present invention provides the preparation method of a kind of without phosphorus compound corrosion inhibiting and descaling agent, without organic or Phos in the corrosion inhibiting and descaling agent component of the present invention, it it is the compound corrosion inhibiting and descaling agent of a kind of high molecular polymer and inorganic salt combination, the present invention is by reasonably designing the order by merging of each material and controlling the temperature in preparation process, it is good that the condition such as mixing speed and time finally obtains a kind of corrosion mitigating effect, the environmentally friendly corrosion inhibiter of shelf-stable.
2.
Technical scheme
In order to solve the problems referred to above, the technical solution adopted in the present invention is as follows:
A kind of without phosphorus compound corrosion inhibiting and descaling agent, the mass fraction of its constituent and each component is: 20-30 part Calcium d-tartrate, 10-20 part octadecyl glycosides, 8-12 part BTA, 3-5 part Bis(hydroxymethyl)imidazolidinyl urea, 15-20 part methyl-monosilane alcohol, 10-15 part allantoin, 12-15 part 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, 8-10 part glycerol polymethacrylates, 60-70 part water.Its preparation process is:
A () adds sodium acryloyldimethyl taurate, water and initiator in reaction bulb and stirs, be then heated to 80-90 DEG C, and wherein the mass ratio of sodium acryloyldimethyl taurate, water and initiator is (50-60): (30-40): 1；
B 2-(Acryloyloxy)ethanol is added in the solution in step (a) and carries out polyreaction by (), obtain 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, and wherein 2-(Acryloyloxy)ethanol is (1 with the mass ratio of sodium acryloyldimethyl taurate
-1.5): 1；
C () weighs 20-30 part Calcium d-tartrate, 8-10 part glycerol polymethacrylates, 10-15 part allantoin and 40-50 part water stirring and dissolving according to the mass fraction in claim 1 uniform, obtains the aqueous phase of without phosphorus compound corrosion inhibiting and descaling agent；
D 10-20 part octadecyl glycosides, 8-12 part BTA, 15-20 part methyl-monosilane alcohol and 20-30 part water are uniformly mixing to obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent by () the most successively；
E the Emulsion Phase obtained in step (d) is added in the aqueous phase in step (c) by (); then 2-(Acryloyloxy)ethanol/the sodium acryloyldimethyl taurate copolymers prepared it is sequentially added in 3-5 part Bis(hydroxymethyl)imidazolidinyl urea and 12-15 part step (b); stir and be heated to 40-50 DEG C and carry out emulsion reaction 1-2 h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Preferably, the described initiator in step (a) is the one in sodium peroxydisulfate or tert-butyl hydroperoxide.
Preferably, in described step (b), 2-(Acryloyloxy)ethanol is 1:1 with the mass ratio of sodium acryloyldimethyl taurate.
Preferably, in described step (b), polymerization reaction time is 3-4 h, and reaction temperature is 85 DEG C.
3.
Beneficial effect
Compared to prior art, the invention have the benefit that
(1) the most phosphorous in the corrosion inhibiting and descaling agent component of the present invention, will not produce environment and pollute, the present invention is the compound corrosion inhibiting and descaling agent of a kind of high molecular polymer and inorganic salt combination, has consumption few, to advantages such as environment, human body and crop are safe from harm, it it is a kind of environmentally friendly corrosion inhibiter；
(2) corrosion inhibiting and descaling agent that the preparation method of the present invention obtains is the most highly stable, corrosion mitigating effect 20%-30% higher than prior art, shelf-stable, and post processing is easy, will not produce environment and pollute；
(3) the corrosion inhibiting and descaling agent good dispersion that the preparation method of the present invention obtains, is difficult to reunite, and service life is long, high treating effect；
(4) to have technique simple for the preparation method of the present invention, reasonable in design, mild condition and easily operating, and is suitable to commercial application, and the corrosion inhibiter good dispersion prepared according to the raw material order of addition in preparation method and condition, post processing is easy, environmentally safe.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described below.
Embodiment
1
A kind of without phosphorus compound corrosion inhibiting and descaling agent, the mass fraction of its constituent and each component is: 25 parts of Calcium d-tartrates, 20 parts of octadecyl glycosides, 10 parts of BTAs, 4 parts of Bis(hydroxymethyl)imidazolidinyl urea, 20 parts of methyl-monosilane alcohol, 10 parts of allantoin, 15 parts of 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, 10 parts of glycerol polymethacrylates, 65 parts of water.
The preparation method of above-mentioned a kind of without phosphorus compound corrosion inhibiting and descaling agent, the steps include:
A () adds sodium acryloyldimethyl taurate, water and initiator in reaction bulb and stirs, be then heated to 85 DEG C, and wherein, initiator is sodium peroxydisulfate, and the mass ratio of sodium acryloyldimethyl taurate, water and sodium peroxydisulfate is 50:40:1；
B 2-(Acryloyloxy)ethanol is added in the solution in step (a) and carries out polyreaction by (); obtain 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers; wherein 2-(Acryloyloxy)ethanol is 1:1 with the mass ratio of sodium acryloyldimethyl taurate, and under the conditions of 85 DEG C, polymerization reaction time is 3.5 h；
C () weighs 25 parts of Calcium d-tartrates, 10 parts of glycerol polymethacrylates, 10 parts of allantoin and 40 parts of water stirring and dissolving according to above-mentioned mass fraction uniform, obtains the aqueous phase of without phosphorus compound corrosion inhibiting and descaling agent；
D 20 parts of octadecyl glycosides, 10 parts of BTAs, 20 parts of methyl-monosilane alcohol and 25 parts of water are uniformly mixing to obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent by () the most successively；
E the Emulsion Phase obtained in step (d) is added in the aqueous phase in step (c) by (); then 2-(Acryloyloxy)ethanol/the sodium acryloyldimethyl taurate copolymers prepared it is sequentially added in 4 parts of Bis(hydroxymethyl)imidazolidinyl urea and 15 parts of steps (b); stir and be heated to 40 DEG C and carry out emulsion reaction 2 h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Corrosion inhibiting and descaling agent good dispersion prepared by the present embodiment, water treatment efficiency is excellent, shelf-stable, seal in the case of unglazed photograph and preserve 3 years, there is not significant change in the performance of liquid and indices, environment, through solar exposure decomposable asymmetric choice net, will not be produced and pollute by the waste liquid after corrosion inhibiting and descaling agent use is invalid.
Test the corrosion mitigating effect of the high-efficient corrosion inhibitor obtained in the present embodiment according to the rotary hanging plate method of standard GB/T 18,175 2000 regulation, step is as follows:
Experiment material is aluminum (model 3003), II type standard lacing film, and specification is 50mm × 25mm × 2mm, area 28cm2.Lacing film used is all polished step by step through abrasive paper for metallograph, then dries up with acetone cleaning, cold wind after distilled water, washes of absolute alcohol again, is placed in exsiccator 24 more than h, standby.
Experiment uses weight-loss method, experimental temperature 50 DEG C.The linear velocity that test piece rotates is maintained at 0.35 m/s(70 r/min), 72 hours time, lacing film presses GB/T
18175 2000 methods are weighed after processing, then are calculated as follows the rate of corrosion V of lacing film:
V(mm/a)=8.76 × 104 △ W/s t ρ
In formula: △ W is the weightlessness (g) of lacing film, s is the surface area (cm of lacing film2), t is the time (h), and ρ is lacing film density (g/m3).
Then the corrosion inhibiter corrosion inhibition rate E to aluminum it is calculated as follows:
E(%)=100 (V0-
Vc)/V0
In formula: V0For blank rate of corrosion, VcRate of corrosion for given corrosion inhibiter.
Testing liquid is 8% sodium hydroxide solution added with the without phosphorus compound corrosion-mitigation scale-inhibition in the present embodiment and blank, and test result shows, when in solution, the concentration of corrosion inhibiter is 400 ppm, the corrosion inhibition rate to aluminum is 97.2%.
Embodiment
2
A kind of without phosphorus compound corrosion inhibiting and descaling agent, the mass fraction of its constituent and each component is: 20 parts of Calcium d-tartrates, 15 parts of octadecyl glycosides, 8 parts of BTAs, 3 parts of Bis(hydroxymethyl)imidazolidinyl urea, 15 parts of methyl-monosilane alcohol, 15 parts of allantoin, 12 parts of 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, 8 parts of glycerol polymethacrylates, 60 parts of water.
The preparation method of above-mentioned a kind of without phosphorus compound corrosion inhibiting and descaling agent, the steps include:
A () adds sodium acryloyldimethyl taurate, water and initiator in reaction bulb and stirs; it is then heated to 80 DEG C; wherein, initiator is tert-butyl hydroperoxide, and the mass ratio of sodium acryloyldimethyl taurate, water and tert-butyl hydroperoxide is 55:40:1；
B 2-(Acryloyloxy)ethanol is added in the solution in step (a) and carries out polyreaction by (); obtain 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers; wherein 2-(Acryloyloxy)ethanol is 1.2:1 with the mass ratio of sodium acryloyldimethyl taurate, and under the conditions of 80 DEG C, polymerization reaction time is 4 h；
C () weighs 20 parts of Calcium d-tartrates, 8 parts of glycerol polymethacrylates, 15 parts of allantoin and 40 parts of water stirring and dissolving according to above-mentioned mass fraction uniform, obtains the aqueous phase of without phosphorus compound corrosion inhibiting and descaling agent；
D 15 parts of octadecyl glycosides, 8 parts of BTAs, 15 parts of methyl-monosilane alcohol and 20 parts of water are uniformly mixing to obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent by () the most successively；
E the Emulsion Phase obtained in step (d) is added in the aqueous phase in step (c) by (); then 2-(Acryloyloxy)ethanol/the sodium acryloyldimethyl taurate copolymers prepared it is sequentially added in 3 parts of Bis(hydroxymethyl)imidazolidinyl urea and 12 parts of steps (b); stir and be heated to 45 DEG C and carry out emulsion reaction 1.5 h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Corrosion inhibiting and descaling agent good dispersion prepared by the present embodiment, water treatment efficiency is excellent, shelf-stable, seal in the case of unglazed photograph and preserve 3 years, there is not significant change in the performance of liquid and indices, environment, through solar exposure decomposable asymmetric choice net, will not be produced and pollute by the waste liquid after corrosion inhibiting and descaling agent use is invalid.
The efficient inhibition without the compound corrosion inhibiting and descaling agent of phosphine obtained in detection the present embodiment and scale-inhibiting properties, its step is with embodiment 1, and test result shows, when in solution, the concentration of corrosion inhibiter is 550 ppm, the corrosion-mitigation scale-inhibition rate to aluminum is 98.5%.
Embodiment
3
A kind of without phosphorus compound corrosion inhibiting and descaling agent, the mass fraction of its constituent and each component is: 30 parts of Calcium d-tartrates, 10 parts of octadecyl glycosides, 12 parts of BTAs, 5 parts of Bis(hydroxymethyl)imidazolidinyl urea, 17 parts of methyl-monosilane alcohol, 13 parts of allantoin, 14 parts of 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, 9 parts of glycerol polymethacrylates, 70 parts of water.
The preparation method of above-mentioned a kind of without phosphorus compound corrosion inhibiting and descaling agent, the steps include:
A () adds sodium acryloyldimethyl taurate, water and initiator in reaction bulb and stirs, be then heated to 90 DEG C, and wherein, initiator is sodium peroxydisulfate, and the mass ratio of sodium acryloyldimethyl taurate, water and sodium peroxydisulfate is 60:35:1；
B 2-(Acryloyloxy)ethanol is added in the solution in step (a) and carries out polyreaction by (); obtain 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers; wherein 2-(Acryloyloxy)ethanol is 1.5:1 with the mass ratio of sodium acryloyldimethyl taurate, and under the conditions of 90 DEG C, polymerization reaction time is 3 h；
C () weighs 30 parts of Calcium d-tartrates, 9 parts of glycerol polymethacrylates, 13 parts of allantoin and 45 parts of water stirring and dissolving according to above-mentioned mass fraction uniform, obtains the aqueous phase of without phosphorus compound corrosion inhibiting and descaling agent；
D 10 parts of octadecyl glycosides, 12 parts of BTAs, 17 parts of methyl-monosilane alcohol and 25 parts of water are uniformly mixing to obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent by () the most successively；
E the Emulsion Phase obtained in step (d) is added in the aqueous phase in step (c) by (); then 2-(Acryloyloxy)ethanol/the sodium acryloyldimethyl taurate copolymers prepared it is sequentially added in 5 parts of Bis(hydroxymethyl)imidazolidinyl urea and 14 parts of steps (b); stir and be heated to 50 DEG C and carry out emulsion reaction 1 h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Corrosion inhibiting and descaling agent good dispersion prepared by the present embodiment, water treatment efficiency is excellent, shelf-stable, seal in the case of unglazed photograph and preserve 3 years, there is not significant change in the performance of liquid and indices, environment, through solar exposure decomposable asymmetric choice net, will not be produced and pollute by the waste liquid after corrosion inhibiting and descaling agent use is invalid.
The efficient inhibition without the compound corrosion inhibiting and descaling agent of phosphine obtained in detection the present embodiment and scale-inhibiting properties, its step is with embodiment 1, and test result shows, when in solution, the concentration of corrosion inhibiter is 600 ppm, the corrosion-mitigation scale-inhibition rate to aluminum is 99.3%.
Claims (4)
1. a preparation method for without phosphorus compound corrosion inhibiting and descaling agent, the constituent of described without phosphorus compound corrosion inhibiting and descaling agent and the mass fraction of each component be: 20-30 part Calcium d-tartrate, 10-20 part octadecyl glycosides, 8-12 part BTA, 3-5 part Bis(hydroxymethyl)imidazolidinyl urea, 15-20 part methyl-monosilane alcohol, 10-15 part allantoin, 12-15 part 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, 8-10 part glycerol polymethacrylates, 60-70 part water；Its preparation process is:
A () adds sodium acryloyldimethyl taurate, water and initiator in reaction bulb and stirs; being then heated to 80-90 DEG C, wherein the mass ratio of sodium acryloyldimethyl taurate, water and initiator is (50-60): (30-40): 1；
B 2-(Acryloyloxy)ethanol is added in the solution in step (a) and carries out polyreaction by (); obtaining 2-(Acryloyloxy)ethanol/sodium acryloyldimethyl taurate copolymers, wherein 2-(Acryloyloxy)ethanol is (1-1.5) with the mass ratio of sodium acryloyldimethyl taurate: 1；
C () weighs 20-30 part Calcium d-tartrate, 8-10 part glycerol polymethacrylates, 10-15 part allantoin and 40-50 part water stirring and dissolving according to aforesaid mass fraction uniform, obtains the aqueous phase of without phosphorus compound corrosion inhibiting and descaling agent；
D 10-20 part octadecyl glycosides, 8-12 part BTA, 15-20 part methyl-monosilane alcohol and 20-30 part water are uniformly mixing to obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent by () the most successively；
E the Emulsion Phase obtained in step (d) is added in the aqueous phase in step (c) by (); then 2-(Acryloyloxy)ethanol/the sodium acryloyldimethyl taurate copolymers prepared it is sequentially added in 3-5 part Bis(hydroxymethyl)imidazolidinyl urea and 12-15 part step (b); stir and be heated to 40-50 DEG C and carry out emulsion reaction 1-2h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
The preparation method of a kind of without phosphorus compound corrosion inhibiting and descaling agent the most according to claim 1, it is characterised in that: the described initiator in step (a) is the one in sodium peroxydisulfate or tert-butyl hydroperoxide.
The preparation method of a kind of without phosphorus compound corrosion inhibiting and descaling agent the most according to claim 1, it is characterised in that: in described step (b), 2-(Acryloyloxy)ethanol is 1:1 with the mass ratio of sodium acryloyldimethyl taurate.
The preparation method of a kind of without phosphorus compound corrosion inhibiting and descaling agent the most according to claim 3, it is characterised in that: in described step (b), polymerization reaction time is 3-4h, and reaction temperature is 85 DEG C.
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| CN113249107A (en) * | 2021-05-25 | 2021-08-13 | 上绍同烯达(绍兴)新材料科技有限公司 | Scale inhibitor for inhibiting formation of calcium carbonate scale and preparation method thereof |
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