CN104709982A - Low-phosphorus water treatment agent composition and application thereof - Google Patents
Low-phosphorus water treatment agent composition and application thereof Download PDFInfo
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- CN104709982A CN104709982A CN201310676437.2A CN201310676437A CN104709982A CN 104709982 A CN104709982 A CN 104709982A CN 201310676437 A CN201310676437 A CN 201310676437A CN 104709982 A CN104709982 A CN 104709982A
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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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/167—Phosphorus-containing compounds
- C23F11/1676—Phosphonic acids
Abstract
The invention discloses a low-phosphorus water treatment agent composition. The composition contains a benzamide bactericide, an organic phosphonic acid corrosion inhibitor and a sulfonic group-containing copolymer. The invention also discloses an application of the low-phosphorus water treatment agent composition in industrial circulating cooling water treatment. The assessment result of the water treatment performance of the composition shows that a small dosage of the composition has high calcium carbonate scale inhibition rate, high zinc inhibition rate, high sterilization rate and slow carbon steel sheet corrosion rate in water treatment. The above low-phosphorus water treatment agent has the advantages of good water treatment effect, small dosing amount and low phosphorus content.
Description
Technical field
The present invention relates to a kind of low-phosphor water treatment agent composition and the application of said composition in industrial circulating cooling water.
Background technology
In recirculating cooling water system, mainly there is fouling, corrosion and harms of microbe three aspect problem.Prevent scaling and corrosion most convenient and effective means adds corrosion inhibiting and descaling agent in recirculated cooling water.The domestic corrosion inhibiting and descaling agent being usually used in circulating water cooling treatment mostly is phosphorous treatment agent at present, along with people cause water pollution and the understanding gradually of eutrophication problem to P contained compound, country is to the requirement also increasingly stringent of phosphorus discharge, and the exploitation of low-phosphorous formula more and more comes into one's own.
The control of bacterium and algae in recirculating cooling water system, generally by adding sterilant to control.Conventional sterilant is divided into two large class, oxidized form and non-oxidative bactericides.Oxidative bactericide is commonly used because it is cheap, but it is subject to impact and the interference of the factors such as pH in recirculated cooling water, organism, anti-incrustation corrosion inhibitor, make it sterilization effect to reduce, and life-time service, microorganism easily develops immunity to drugs. also will affect sterilization effect, this series bactericidal agent has stronger oxidisability simultaneously, and easily other water conditioners of oxidation make it lose efficacy; Non-oxidative bactericide does not kill microorganism in water with oxygenizement, but makes it lethal by the privileged sites acting on microorganism, and therefore, non-oxidative bactericide is not by impact and the interference of the factors such as pH, organism, anti-incrustation corrosion inhibitor in recirculated cooling water.Regularly in recirculated cooling water, use non-oxidative bactericide, can biological clay in strip cycles cooling water system, can prevent microorganism from developing immunity to drugs, non-oxidative bactericide can be the aid antibacteria agent of oxidative bactericide simultaneously, on-the-spot general employing impact adds, and chemical feeding quantity is larger.Wherein modal non-oxidative bactericide has quaternary ammonium salt sterilant and isothiazolinone, quaternary ammonium salt sterilant has good instantaneous sterilization effect, but duration of efficacy is short, and the foundry loam microorganism after peeling off can not thoroughly be killed, and again can form foundry loam again after a while; Isothiazolinone instantaneous sterilization effect is poor, generally wants dosing 24h just to start to take effect, and dosage is large, and costly, life-time service also has corrosive nature to recirculating cooling water system.Although also developed a lot of novel non-oxidative bactericide at present, also do not have a kind of non-oxidative bactericide can substitute oxidative bactericide completely.And this common several non-oxidative bactericide is from bringing into use the time of existing decades so far, update speed is slow, in life-time service process, microorganism easily develops immunity to drugs to it, needs the working concentration continuing to increase common fungicide could continue to keep good sterilization effect.
Summary of the invention
The object of the invention is to overcome the defects such as existing water conditioner phosphorus content is large, consumption is many, provide a kind of phosphorous low and the low-phosphor water treatment agent composition that dosing is few and application thereof.
Usually, organic phospho acid inhibiter contains the phosphonate group (-PO be connected with carbon atom
3h
2).Compared with the inorganic polyphosphate in early stage phosphorus line formulation, organic phospho acid have good chemical stability, not facile hydrolysis, can the advantage such as higher temperature resistant, dosing be little, and have inhibition and scale inhibition dual-use function concurrently.Organic phospho acid is a class cathode type inhibiter, is again a class non-chemically equivalent Scale inhibitors simultaneously, has obvious threshold effect.They to many metal ions as Ca
2+, Mg
2+, Cu
2+, Zn
2+deng all, there is good sequestering power, even to the inorganic salts of some metals as CaCO
3, CaSO
4, MgSiO
3deng also having good deactivation.But conventional organic phospho acid can not suppress calcium phosphate scale and zinc dirt effectively, and itself is easily formed with machine phosphonic acid dirt.Most organic phospho acid inhibiter is all responsive to chlorine, easy oxidized type sterilant oxidation.In addition, be used alone organic phosphorus corrosion inhibitor and all there is the higher problem of total phosphorus.
Benzamides sterilant is typically used as agricultural bactericide, common are metaxanin, Wakil, M 9834 and fenfuram.These four kinds of medicaments are used as agricultural bactericide, and sterilization effect is good, but less for recirculating cooling water system, and mainly because this several medicament solubleness in water is lower, the use in circulating water treatment is subject to a definite limitation.
The present inventor studies discovery, by using by benzamides sterilant and organic phospho acid inhibiter with containing sulfonic polymer combination, benzamides sterilant, organic phospho acid inhibiter and containing playing good synergy between sulfonic multipolymer, obviously reduce at the consumption being applied to water treatment Chinese medicine, and effectively can solve and be used alone the phosphorous high defect of organic phospho acid, the effect of good scale inhibition, inhibition and sterilization can be obtained again simultaneously, thus complete the present invention.
The invention provides a kind of low-phosphor water treatment agent composition, wherein, said composition contains benzamides sterilant, organic phospho acid inhibiter and contains sulfonic multipolymer.
Present invention also offers this application of low-phosphor water treatment agent composition in water treatment procedure.
In the present invention, by by benzamides sterilant, organic phospho acid inhibiter and containing sulfonic polymer combination to obtain the low-phosphor water treatment agent composition in the present invention, when said composition being applied to industrial circulating cooling water process, can obtain good sterilization, inhibition and scale inhibition effect, and phosphorus content is low, dosing is few.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of low-phosphor water treatment agent composition, wherein, said composition contains benzamides sterilant, organic phospho acid inhibiter and contains sulfonic multipolymer.
Although by described benzamides sterilant, described organic phospho acid inhibiter and described containing sulfonic multipolymer with the use of just may be used in water treatment, but in order to reach good water treatment efficiency, under preferable case, sulfonic multipolymer is contained relative to described in 100 weight parts, the content of described benzamides sterilant is 8-300 weight part, and the content of described organic phospho acid inhibiter is 8-120 weight part.More preferably, in situation, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described benzamides sterilant is 20-130 weight part, and the content of described organic phospho acid inhibiter is 30-100 weight part.Further under preferable case, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described benzamides sterilant is 20-90 weight part, and the content of described organic phospho acid inhibiter is 35-70 weight part.
According to low-phosphor water treatment agent composition of the present invention, described benzamides sterilant has stronger germicidal action, therefore benzamides sterilant described in composition of the present invention can be the benzamides sterilant of this area routine, under preferable case, described benzamides sterilant is one or more in metaxanin, Wakil, M 9834 and fenfuram, is more preferably metaxanin.Wherein, the chemistry of metaxanin is called D, and L-N-(2,6-3,5-dimethylphenyl)-N-(2-methoxyl group acetyl) alanine methyl ester, its molecular formula is C
15h
21nO
4; The chemistry of Wakil is called 2-methoxyl group-N-(2-oxo-1,3-oxazoles alkane-3-base) ethanamide-N-(2 ', 6 '-dimethyl benzene), and its molecular formula is C
14h
18n
2o
4; The chemistry of M 9834 is called N-phenylacetyl-N-2,6-xylyl-DL-Alanine methyl esters, and its molecular formula is C
20h
23nO
3; The chemistry of fenfuram is called N-phenylacetyl-N-2,6-xylyl-DL-Alanine methyl esters, and its molecular formula is C
12h
11nO
2.In addition, because the solubleness of benzamides sterilant in water is lower, therefore, a small amount of dissolve with ethanol of the Shi Kexian that makes up a prescription.
According to low-phosphor water treatment agent composition of the present invention, described organic phospho acid inhibiter has excellent anticorrosion-antiscaling property, therefore, described organic phospho acid inhibiter in composition of the present invention can be the organic phospho acid inhibiter of this area routine, under preferable case, described organic phospho acid inhibiter is 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP), Amino Trimethylene Phosphonic Acid (ATMP), 2-phosphonate group-1, 2, 4-butane tricarboxylate (PBTCA), hydroxyethylidene diphosphonic acid guanidine-acetic acid (HPAA), ethylene diamine tetra methylene phosphonic acid (EDTMP), diethylene triamine pentamethylene phosphonic (DTPMPA), glycine two methylenephosphonic acid, L-glutamic acid two methylenephosphonic acid, one or more in thionamic acid two methylenephosphonic acid and taurine two methylenephosphonic acid.More preferably, in situation, described organic phospho acid inhibiter is one or more in HEDP, ATMP, PBTCA and HPAA.
According to low-phosphor water treatment agent composition of the present invention, described have scale inhibition and dispersion performance containing sulfonic multipolymer, especially when this multipolymer is for containing sulfonic group, in carboxylic acid group and phosphonate group when one or more copolymer and/or terpolymer, therefore, containing sulfonic preferred described copolymer described in composition of the present invention is vinylformic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer (AA/AMPS), preferred described terpolymer is acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer (AA/AM/AMPS), acrylic acid/esters/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer (AA/ acrylate/AMPS), one or more in vinylformic acid/maleic anhydride/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer (AA/ maleic anhydride/AMPS) and vinylformic acid/2-acrylamido-2-methylpropanephosphonic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer (AA/AMPP/AMPS), wherein, described acrylate is preferably vinylformic acid C1-C8 alkyl or hydroxy alkyl ester, be more preferably methyl acrylate (MA), ethyl propenoate (EA) or Propylene glycol monoacrylate (HPA).
Low-phosphor water treatment agent composition of the present invention can also contain heterogeneous ring compound.When described low-phosphor water treatment agent composition contains heterogeneous ring compound, this low-phosphor water treatment agent composition is particularly suitable for processing the industrial circulating cooling water of equipment made of copper.Under preferable case, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described heterogeneous ring compound is 25-180 weight part.Described heterogeneous ring compound can be the various heterogeneous ring compounds that this area routine uses, and under preferable case, described heterogeneous ring compound is mercaptobenzothiazole and/or benzotriazole.
Low-phosphor water treatment agent composition of the present invention can also contain zinc salt.When described low-phosphor water treatment agent composition contains zinc salt, this low-phosphor water treatment agent composition is specially adapted to the process to the recirculated cooling water compared with severe corrosive.Under preferable case, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described zinc salt is 25-180 weight part.Described zinc salt can be the various zinc salts that this area routine uses, and under preferable case, described zinc salt is zinc sulfate and/or zinc chloride.
In the present invention, described low-phosphor water treatment agent composition can also contain water.Water-content in described low-phosphor water treatment agent composition can be determined according to the concentration of the water conditioner of routine.When described low-phosphor water treatment agent composition contains water, described low-phosphor water treatment agent composition preferably exists in form of an aqueous solutions, the concentration of this aqueous solution can be the effective concentration of the practical application of the water conditioner in water treatment procedure, also can be the concentration denseer than practical application effective concentration, and in actual application, be diluted to corresponding effective concentration.
Present invention also offers the application of above-mentioned low-phosphor water treatment agent composition in water treatment procedure.
In above-mentioned application process, the water that described low-phosphor water treatment agent composition is applicable to processing can be the industrial circulating cooling water of various routine, especially, described low-phosphor water treatment agent composition is applicable to high rigidity and the high alkalinity water quality that calcium hardness and total alkalinity sum are more than 300mg/L, when by low-phosphor water treatment agent compositions-treated, for preventing fouling, often first acid adding adjust pH, reduces the basicity in water; For the process that calcium hardness and total alkalinity sum are the medium hardness of 100-300mg/L and the recirculated cooling water of moderate alkalinity, the recirculated cooling water processing this water quality does not need adjust pH; For soft, the low alkalinity water quality of calcium hardness and below total alkalinity sum 100mg/L, its subject matter that will solve is inhibition problem, and same low-phosphor water treatment agent of the present invention is also applicable to the process of this recirculated water.
In above-mentioned application process, described low-phosphor water treatment agent composition is for using with the conventional effective concentration of this area during water treatment, under preferable case, described low-phosphor water treatment agent composition is being 50-80mg/L for effective concentration during water treatment, this effective concentration refers to relative to pending water, this water conditioner added wherein is 50-80mg/L, and the quality of the water conditioner namely added in often liter of pending water is 50-80mg.When this water conditioner is the aqueous solution of described water conditioner, the amount also containing water in water conditioner in this water conditioner of the 50-80mg added.Wherein, relative to pending water, the effective concentration of described benzamides sterilant is 0.5-6mg/L, and the effective concentration of described organic phospho acid inhibiter is 0.5-4mg/L, and the described effective concentration containing sulfonic multipolymer is 2-6mg/L.Under preferable case, relative to pending water, the effective concentration of described benzamides sterilant is 1.5-4mg/L, and the effective concentration of described organic phospho acid inhibiter is 1.5-3mg/L, and the described effective concentration containing sulfonic multipolymer is 3-5mg/L.Owing to having synergy between each component in water conditioner of the present invention, therefore when with this water conditioner process water, the effective concentration of each component above-mentioned is all relatively on the low side.When this low-phosphor water treatment agent composition is also containing zinc salt, the effective concentration of this zinc salt is (with Zn
2+meter) be 0.5-1.5mg/L, when this phosphate-free water treatment agent composition is also containing heterogeneous ring compound, the effective concentration of this heterogeneous ring compound is 0.5-1.5mg/L.
Below will be described the present invention by embodiment.
In the following Examples and Comparative Examples, hinder calcium carbonate scale performance test, stablize zinc salt performance test, rotary hanging plate corrosion test and bactericidal property and test and measure according to following methods respectively:
(1) calcium carbonate scale performance test is hindered
Get distilled water preparation Ca
2+concentration is 600mg/L, basicity is 600mg/L and pH value in the test water 1 of about 9.0, the water conditioner prepared is added wherein, in 80 ± 1 DEG C of waters bath with thermostatic control leave standstill 10h, remain Ca in sampling analysis water
2+concentration, make blank sample simultaneously, and calculate scale inhibition performance.
Scale inhibition performance calculation formula is: scale inhibition performance=(C-C
0) × 100%/(C
1-C
0)
C: actual measurement Ca
2+concentration (mg/L)
C
0: the Ca of blank sample
2+concentration (mg/L)
C
1: the Ca in former water
2+concentration (mg/L)
(2) zinc salt performance test is stablized
Get distilled water preparation Ca
2+concentration is 250mg/L, and basicity is 250mg/L, Zn
2+for the test water 2 that 5mg/L and pH value are about 9, the water conditioner prepared is added wherein, in 80 ± 1 DEG C of waters bath with thermostatic control, leave standstill 10h, in sampling analysis water, remain Zn
2+concentration, make blank sample simultaneously, and calculate resistance zinc rate.
Resistance zinc rate calculation formula is: resistance zinc rate=(C-C
0) × 100%/(C
1-C
0)
C: actual measurement Zn
2+concentration (mg/L)
C
0: the Zn of blank sample
2+concentration (mg/L)
C
1: the Zn in former water
2+concentration (mg/L)
(3) rotary hanging plate corrosion test
The test piece of 20# qualitative carbon steel is fixed on lacing film instrument, puts into the test water being added with water conditioner and (respectively former for the test of table 1 water 1 is concentrated into 4 times of concentration, and with sulfuric acid adjust pH to 7.8-8.2, forms test water 3; The former water 2 and 3 of test in table 1 is concentrated into 5 times of concentration, not adjust pHs, forms test water 4 and 5), steady temperature 40 ± 1 DEG C, keeps rotating speed 75rpm to rotate 72h, and the weight of test piece before and after record test, calculates average corrosion rate.
Average corrosion rate calculation formula is: F=(C × △ W)/(A × T × ρ)
C: computational constant, during with mm/a (millimeter/year) for unit, C=8.76 × 10
7
△ W: the corrosion weight loss (g) of test specimen
A: the area (cm of test specimen
2)
T: corrosion test time (h)
ρ: the density (kg/m of material for test
3)
(4) bactericidal property test
In the liquid nutrient medium of heterotrophic bacterium, inoculation tap water (volume ratio of substratum and tap water is 20:1), enrichment culture 1 day in 30 DEG C of incubators, and continuous transferred species 3 times, this nutrient solution is original strain.Original strain is diluted with tap water, bacterium liquid is obtained after abundant mixing, get the triangular flask that 200ml bacterium liquid is loaded on 500ml, add phosphate-free water treatment agent composition of the present invention, be placed in 30 DEG C of incubators, in certain intervals sampling monitoring bacterial count, make blank sample simultaneously, and calculating sterilizing rate, sterilizing rate calculation formula is: the bacterium number of sterilizing rate=(the bacterium number of the bacterium number-same time sample of blank sample of same time) × 100%/same time blank sample.
The water quality parameter of the former water of the test used in above-mentioned process of the test is as shown in table 1.
The water quality parameter of former water tested by table 1
| Water quality | Ca 2+ | Total alkalinity | Total hardness | Cl - | SO 4 2- | pH | Specific conductivity | Total molten solid |
| Test former water 1 | 258 | 290 | 352 | 66 | 110 | 7.5 | 995 | 706 |
| Test former water 2 | 79 | 154 | 140 | 15 | 33 | 8.0 | 201 | 281 |
| Test former water 3 | 22 | 35 | 50 | 7 | 11 | 7.2 | 108 | 84 |
The measuring method of water quality is with reference to as follows:
Ca
2+(with CaCO
3meter, mg/L): reference standard GB/T6910-2006
Total alkalinity is (with CaCO
3meter, mg/L): reference standard GB/T15451-2006;
Total hardness is (with CaCO
3meter, mg/L): reference standard GB/T6909-2008;
Cl
-(mg/L): reference standard GB/T15453-2008;
SO
4 2-(mg/L): reference standard GB/T14642-2009;
PH value: reference standard GB/T6920-1986;
Specific conductivity (μ s/cm): reference standard GB/T6908-2008;
Total molten solid: reference standard GB/T14415-2007.
Metaxanin in the following Examples and Comparative Examples, Wakil and M 9834 are purchased from Solution on Chemical Reagents in Shanghai factory; Fenfuram is purchased from Tianjin one side Science and Technology Ltd.; Organic phospho acid inhibiter and containing sulfonic multipolymer all purchased from the strong Yilong Industry Co., Ltd. in Luoyang; Zinc salt is all purchased from Beijing chemical reagents corporation; Isothiazolinone is purchased from Beijing Tianqing Chemical Co., Ltd.; Strong chlorine oil is purchased from the calm and peaceful water treatment company limited in Shandong.It is worth mentioning that, purchased from above company organic phospho acid inhibiter, exist all in form of an aqueous solutions containing sulfonic multipolymer and isothiazolinone.
Embodiment 1
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 2.5g metaxanin is first dissolved in the ethanol of 5mL, with 7.8g solid content be again 40% HPAA, 1.3g zinc chloride and 16.7g solid content be 30% AA/AM/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A1.
Embodiment 2
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 5g metaxanin is first dissolved in the ethanol of 10mL, with 7.5g solid content be again 50% HEDP, 8.3g Zinc Sulphate Heptahydrate and 18.8g solid content be 30% AA/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A2.
Embodiment 3
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 3.8g metaxanin is first dissolved in the ethanol of 10mL, with 5g solid content be again 50% PBTCA, 5.5g Zinc Sulphate Heptahydrate and 20.9g solid content be 30% AA/HPA/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A3.
Embodiment 4
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 1.2g metaxanin is first dissolved in the ethanol of 5mL, with 3.75g solid content be again 50% ATMP, 8.35g solid content be 30% AA/MA/AMPS multipolymer and 8.35g solid content be 30% AA/HPA/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A4.
Embodiment 5
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 1.9g metaxanin and 2.5g Wakil are first dissolved in the ethanol of 5mL, with 8.75g solid content be again 50% EDTMP, 5.5g Zinc Sulphate Heptahydrate and 12.5g solid content be 30% AA/EA/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A5.
Embodiment 6
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 1.9g metaxanin is first dissolved in the ethanol of 10mL, be 50% diethylene triamine pentamethylene phosphonic with 2.5g solid content again, 8.3g Zinc Sulphate Heptahydrate and 10.44g solid content be 30% AA/ maleic anhydride/AMPS copolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A6.
Embodiment 7
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 7.5g metaxanin is first dissolved in the ethanol of 10mL, be 50% glycine two methylenephosphonic acid again with 1.3g solid content, 1.3g solid content be 50% HEDP with 8.35g solid content be 30% AA/AMPP/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A7.
Embodiment 8
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 5.6g metaxanin is first dissolved in the ethanol of 10mL, with 5g solid content be again 50% L-glutamic acid two methylenephosphonic acid, 5.5g Zinc Sulphate Heptahydrate and 14.6g solid content be 30% AA/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A8.
Embodiment 9
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 0.6g metaxanin is first dissolved in the ethanol of 5mL, be dissolved in deionized water together with the AA/HPA/AMPS multipolymer that to be 50% thionamic acid two methylenephosphonic acid again with 7.5g solid content be 30% with 23.0g solid content, stir, be mixed with 100g water conditioner A9.
Embodiment 10
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 2.5g M 9834 and 2.5g fenfuram are first dissolved in the ethanol of 5mL, be dissolved in deionized water together with AA/ maleic anhydride/AMPS copolymer that to be 50% taurine two methylenephosphonic acid again with 1.3g solid content be 30% with 25.1g solid content, stir, be mixed with 100g water conditioner A10.
Embodiment 11
The present embodiment is for illustration of described low-phosphor water treatment agent composition provided by the invention.
The preparation of water conditioner: at room temperature, 3.8g metaxanin is first dissolved in the ethanol of 5mL, with 3.1g solid content be again 40% HPAA, 5g solid content be 50% PBTCA, 2.8g Zinc Sulphate Heptahydrate, 12.5g solid content be 30% AA/AM/AMPS with 8.3g solid content be 30% AA/EA/AMPS multipolymer together be dissolved in deionized water, stir, be mixed with 100g water conditioner A11.
Embodiment 12
Method according to embodiment 1 prepares water conditioner, unlike, add Wakil and replace metaxanin, thus obtain water conditioner A12.
Embodiment 13
Method according to embodiment 2 prepares water conditioner, unlike, add Wakil and replace metaxanin, thus obtain water conditioner A13.
Embodiment 14
Method according to embodiment 1 prepares water conditioner, unlike, add M 9834 and replace metaxanin, thus obtain water conditioner A14.
Embodiment 15
Method according to embodiment 1 prepares water conditioner, unlike, add fenfuram and replace metaxanin, thus obtain water conditioner A15.
Comparative example 1
Method according to embodiment 1 prepares water conditioner, and difference is, does not add metaxanin, thus obtained water conditioner B1.
Comparative example 2
Method according to embodiment 1 prepares water conditioner, and difference is, does not add HPAA, thus obtained water conditioner B2.
Comparative example 3
Method according to embodiment 1 prepares water conditioner, and difference is, does not add AA/AM/AMPS multipolymer, thus obtained water conditioner B3.
Comparative example 4
Method according to embodiment 2 prepares water conditioner, and difference is, adds the isothiazolinone replacement metaxanin that 35.6g effective constituent is 14 % by weight, thus obtained water conditioner B4.
Comparative example 5
Method according to embodiment 2 prepares water conditioner, and difference is, adds the strong chlorine oil replacement metaxanin that 5.5g effective constituent is 90%, thus obtained water conditioner B5.
Test case 1
This test case is for illustration of the scale inhibition of low-phosphor water treatment agent provided by the invention, inhibition and bactericidal property.
Water conditioner A1-A15 in above-described embodiment and the B1-B5 in comparative example is dropped into respectively in the test water 1 of resistance calcium carbonate scale performance test and the test water 2 of stable zinc salt performance test and test accordingly, and A1-A3, A5-A6, A8, A11-A15 and B1-B5 dropped into respectively other A4, A7 and A9-A10 in test water 3 and 5 and drop into respectively in test water 4 and carry out rotary hanging plate corrosion test, wherein, relative to often liter of test water, the dosage of described water conditioner is 80mg, and test-results is as shown in table 3.
Water conditioner A1-A15 in above-described embodiment and the B1-B5 in comparative example is dropped into respectively in the bacterium liquid of bactericidal property test, wherein, relative to often liter of bacterium liquid, the dosage of described water conditioner is 80mg, the insulation can of 30 DEG C is put into after shaking up, the bacterial count of sampling analysis monitoring in required time, sterilizing rate the results are shown in Table 4.
In the pending water more than tested, the effective concentration of each component of water conditioner used is as shown in table 2.
The effective concentration of the component of each water conditioner in the water that table 2 is pending
The scale inhibitor effect of table 3 water conditioner
The bactericidal property test-results of table 4 water conditioner
Note: starter bacteria number is 2.1 × 10
6individual/mL, the "/" in cell indicates without germicidal action.
Data as can be seen from table 3,4, low-phosphor water treatment agent composition of the present invention has resistance calcium carbonate scale performance, corrosion inhibition and sterilizing ability preferably, is a kind of water conditioner of excellent performance.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a low-phosphor water treatment agent composition, is characterized in that, said composition contains benzamides sterilant, organic phospho acid inhibiter and contains sulfonic multipolymer.
2. composition according to claim 1, wherein, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described benzamides sterilant is 8-300 weight part, and the content of described organic phospho acid inhibiter is 8-120 weight part;
Preferably, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described benzamides sterilant is 20-130 weight part, and the content of described organic phospho acid inhibiter is 30-100 weight part;
More preferably, contain sulfonic multipolymer relative to described in 100 weight parts, the content of described benzamides sterilant is 20-90 weight part, and the content of described organic phospho acid inhibiter is 35-70 weight part.
3. composition according to claim 1 and 2, wherein, described benzamides sterilant is one or more in metaxanin, Wakil, M 9834 and fenfuram, is preferably metaxanin.
4. composition according to claim 1 and 2, wherein, described organic phospho acid inhibiter is 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-phosphonate group-1, 2, 4-butane tricarboxylate, hydroxyethylidene diphosphonic acid guanidine-acetic acid, ethylene diamine tetra methylene phosphonic acid, diethylene triamine pentamethylene phosphonic, glycine two methylenephosphonic acid, L-glutamic acid two methylenephosphonic acid, one or more in thionamic acid two methylenephosphonic acid and taurine two methylenephosphonic acid, be preferably 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-phosphonate group-1, 2, one or more in 4-butane tricarboxylate and hydroxyethylidene diphosphonic acid guanidine-acetic acid.
5. according to the composition in claim 1-4 described in any one, wherein, described is copolymer and/or terpolymer containing sulfonic multipolymer.
6. composition according to claim 5, wherein, described copolymer is vinylformic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, described terpolymer is acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, acrylic acid/esters/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, one or more in vinylformic acid/maleic anhydride/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer and vinylformic acid/2-acrylamido-2-methylpropanephosphonic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer.
7. composition according to claim 1, wherein, described composition is also containing heterogeneous ring compound, and contain sulfonic multipolymer relative to described in 100 weight parts, the content of described heterogeneous ring compound is 25-180 weight part.
8. composition according to claim 7, wherein, described heterogeneous ring compound is mercaptobenzothiazole and/or benzotriazole.
9. composition according to claim 1, wherein, described composition is also containing zinc salt, and contain sulfonic multipolymer relative to described in 100 weight parts, the content of described zinc salt is 25-180 weight part.
10. composition according to claim 9, wherein, described zinc salt is zinc sulfate and/or zinc chloride.
The application of composition in 11. claim 1-10 described in any one in water treatment procedure.
12. application according to claim 11, wherein, relative to pending water, the effective concentration of described benzamides sterilant is 0.5-6mg/L, the effective concentration of described organic phospho acid inhibiter is 0.5-4mg/L, and the described effective concentration containing sulfonic multipolymer is 2-6mg/L;
Preferably, relative to pending water, the effective concentration of described benzamides sterilant is 1.5-4mg/L, and the effective concentration of described organic phospho acid inhibiter is 1.5-3mg/L, and the described effective concentration containing sulfonic multipolymer is 3-5mg/L.
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