CN107619118A - Non-phosphate inhibitor and its preparation method and application and water treatment composition and its application - Google Patents
Non-phosphate inhibitor and its preparation method and application and water treatment composition and its application Download PDFInfo
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- CN107619118A CN107619118A CN201610550409.XA CN201610550409A CN107619118A CN 107619118 A CN107619118 A CN 107619118A CN 201610550409 A CN201610550409 A CN 201610550409A CN 107619118 A CN107619118 A CN 107619118A
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Abstract
The present invention relates to water treatment field, in particular it relates to a kind of non-phosphate inhibitor and its preparation method and application and water treatment composition and its application.The preparation method of the non-phosphate inhibitor includes：In presence of an acid, saccharide compound and amino acid are subjected to haptoreaction in aqueous solvent；Wherein, one or more of the saccharide compound in monose；The catalytic condition includes：Temperature is 100 150 DEG C, and the time is 2 10h.Non-phosphate inhibitor provided by the invention is in for water process, under particularly coordinating with zinc salt, can obtain preferable corrosion inhibition and be not easy to by microorganism using being grown and bred.
Description
Technical field
The present invention relates to water treatment field, in particular it relates to a kind of non-phosphate inhibitor and preparation method thereof
With application and water treatment composition and its application.
Background technology
In recent years, it is increasingly recognised that pollution of the phosphorus-containing compound to water body, to phosphorus-containing compound
The limitation for using and discharging it is also increasingly stricter, thus researchers start the other " greens of exploitation
Product " substitutes it.In general, corrosion-mitigation scale-inhibition agent prescription is by inhibition component and antiscaling dispersion component
Two parts form.The excellent without phosphorus copolymer analog dirt dispersion agent kind of scale-inhibiting properties is more, wherein very
It is applied successfully in actual production more.And function admirable non-phosphate inhibitor may be selected leeway compared with
It is small, over more than 30 years, among new non-phosphate inhibitor is still in positive exploration.Amino acid is molecule
In have the amphoteric compound of basic amine group and acidic carboxypolymer concurrently, have as nontoxic environment-friendly type corrosion inhibiter
The applicability of wide spectrum.In addition to there is good corrosion inhibition to carbon steel, it can also suppress in non-ferrous metal
Al, Co, Ni, Cu etc. corrosion, while to preventing the local corrosion of metal from also having preferable effect.
And it can not only be hydrolyzed by protein and is made, and not have toxicity to environment, and in natural environment
Middle energy all biological is degraded into avirulent chemical substance, thus turns into after the 1980s and enjoy
The environment-friendly corrosion inhibitor of concern.But the corrosion inhibition of amino acid stills need further to improve, and
And they will promote the growth and breeding of microorganism easily by microorganism by the use of as nutriment.
The content of the invention
The content of the invention
It is an object of the invention to overcome amino acid corrosion inhibition relatively low and be easy to promote the growth of microorganism
The defects of with breeding, there is provided one kind can obtain more preferable corrosion inhibition and be not easy to be utilized by microorganism
Grown and the non-phosphate inhibitor bred and its preparation method and application and water treatment composition and its
Using.
To achieve these goals, the present invention provides a kind of preparation method of non-phosphate inhibitor, this method
Including：In presence of an acid, saccharide compound and amino acid are subjected to haptoreaction in aqueous solvent；
Wherein, one or more of the saccharide compound in monose；The catalytic condition bag
Include：Temperature is 100-150 DEG C, time 2-10h.
Present invention also offers the non-phosphate inhibitor as made from the above method.
Present invention also offers application of the above-mentioned non-phosphate inhibitor in water process.
Present invention also offers a kind of water treatment agent composition, said composition contains zinc salt and above-mentioned nothing
Phosphor corrosion inhibitor.
Present invention also offers application of the above-mentioned water treatment agent composition in water process.
Non-phosphate inhibitor provided by the invention is in for water process, under particularly coordinating with zinc salt, energy
Enough obtain preferable corrosion inhibition and be not easy to by microorganism using being grown and bred.
Other features and advantages of the present invention will give specifically in subsequent specific embodiment part
It is bright.
Embodiment
The embodiment of the present invention is described in detail below.It should be appreciated that this place
The embodiment of description is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points of disclosed scope and any value are not limited to the accurate scope or value herein,
These scopes or value should be understood to comprising the value close to these scopes or value.Come for number range
Say, between the endpoint value of each scope, between the endpoint value of each scope and single point value, and
It can be combined with each other between single point value and obtain one or more new number ranges, these numerical value
Scope should be considered as specific open herein.
The present invention provides a kind of preparation method of non-phosphate inhibitor, and this method includes：In presence of an acid,
Saccharide compound and amino acid are subjected to haptoreaction in aqueous solvent；Wherein, the carbohydrate chemical combination
One or more of the thing in monose；The catalytic condition includes：Temperature is
100-150 DEG C, time 2-10h.
Although the present invention is to the specific reaction side of amino acid during above-mentioned haptoreaction and saccharide compound
There is no particular limitation for formula, but under normal circumstances, more active group amino and carboxylic in amino acid
Base, it is easy to the hydroxyl reaction with saccharide compound under the conditions of above-mentioned haptoreaction, so as to obtain amino
The esterification reaction product that the carboxyl of acid and the hydroxyl of saccharide compound slough a molecular water (is represented by ammonia
Base acid-C (O)-O-C- carbohydrates), or the hydroxyl for the amino and saccharide compound for obtaining amino acid sloughs one point
The reaction product (being represented by amino acid-NH-C- carbohydrates) of sub- water, or the carbohydrate of a molecule
The carboxyl and/or amino of multiple hydroxyls of compound and the amino acid of multiple molecules react, and obtain by polymolecular
Amino-acid modified saccharide compound.These situations are intended to be included in the present invention, so as to pass through this
The preparation method of the described non-phosphate inhibitor of invention, the carbohydrate containing several amino acids modification will be obtained
Compound (amino acid-C (O)-O-C- carbohydrates, amino acid-NH-C- carbohydrates and amino-acid modified by polymolecular
Saccharide compound etc.) combination product, be regarded as such ammonia so as to the non-phosphate inhibitor of gained
One based composition of the modified saccharide compound of base acid.
Wherein, the saccharide compound can use the conventional various monose in this area, such as the sugar
The one kind or more of class compound in glucose, fructose, galactolipin, ribose, xylose and mannose
Kind, preferably glucose.
According to the present invention, the amino acid can be the conventional various amino acid in this area, preferable case
Under, the amino acid is glycine, alanine, aspartic acid, glutamic acid, lysine, bright ammonia
Acid, valine, isoleucine, proline, phenylalanine, tryptophan, methionine, serine,
One or more in threonine, cysteine and tyrosine, more preferably glycine, alanine,
One or more in aspartic acid, glutamic acid and lysine, particularly preferably aspartic acid.
In a kind of preferred embodiment of the present invention, the saccharide compound is glucose, described
Amino acid is aspartic acid.
According to the present invention, the amino acid and the saccharide compound dosage can be in wider scopes
Change, in order that products therefrom is more suitable as water treatment corrosion inhibitors, under preferable case, the ammonia
The mol ratio of the sour and described saccharide compound dosage of base is 0.1-15：1, more preferably 0.4-11：1, more
More preferably 0.45-10：1, more preferably 1-5：1, for example, 1.5-3：1.
According to the present invention, the acid can use this area conventional various inorganic acids and organic acid, only
Will the acid it is not phosphorous, it is preferable that it is described acid for sulfuric acid (be preferably more than 98 weight % dense sulphur
Acid) and/or nitric acid (be preferably more than 65 weight % concentrated nitric acids), more preferably sulfuric acid.As above institute
State, the acid will be catalyzed the saccharide compound and the haptoreaction of amino acid progress.Therefore, institute
Stating the dosage of acid can change in relative broad range, in order to preferably obtain the effect above, preferably
The mol ratio of ground, the saccharide compound and the sour dosage is 1：0.5-5, more preferably 1：
0.5-4.5, it is still more preferably 1：1-3.5 for example, 1：1.1-2.5.
According to the present invention, although can also contain some in the aqueous solvent does not influence the contact instead
Other solvents answered, under preferable case, the aqueous solvent is water.The dosage of the aqueous solvent can
To be changed in relative broad range, in order to cause the haptoreaction to be more adapted for, preferred feelings
Under condition, relative to the aqueous solvent of 100 parts by weight, the dosage of the saccharide compound and amino acid
It is still more preferably 24-35 parts by weight for 15-80 parts by weight, more preferably 20-60 parts by weight.
In the case where meeting above-mentioned condition, relative to the aqueous solvent of 100 parts by weight, the sour content is
4-20 parts by weight, more preferably 5-15 parts by weight, for example, 7-12 parts by weight.
According to the present invention, when the catalytic temperature is more than 150 DEG C, then saccharide compound can be sent out
Raw caramelization；When the catalytic temperature be less than 100 DEG C when, then saccharide compound be difficult to
Amino acid reacts.Under preferable case, the catalytic condition includes：Temperature is
120-140 DEG C, time 4-8h.
According to the present invention, in order to enable the saccharide compound and amino acid fully to connect
Touch, under preferable case, this method includes：First in the aqueous solvent by the saccharide compound and
The amino acid is mixed, and is then introduced the acid and is carried out the haptoreaction.
It is highly preferred that after the acid is introduced, reaction system is started to warm up from 10-40 DEG C and reaches described
Catalytic reaction temperature carries out the haptoreaction.
According to the present invention, the above method can also include：By the part of the product after the haptoreaction
Aqueous solvent removes, and remaining liq is non-phosphate inhibitor through being evaporated under reduced pressure gained solid phase.
Present invention also offers one kind non-phosphate inhibitor as made from the above method.
Although there is no particular limitation by the present invention it should be appreciated that nothing made from the above method
Phosphor corrosion inhibitor can both refer to that product that the above method directly obtains without any purification processes, also might be used
To refer to the product after eliminating solvent or the product after removing partial solvent, or directly it is
Refer to and extract the compound that above-mentioned saccharide compound occurs obtained by reaction noted hereinabove with amino acid
The product come.Preferably, the non-phosphate inhibitor is to contain the part of the product after the haptoreaction
Aqueous solvent removes, and remaining liq is the non-phosphate inhibitor through being evaporated under reduced pressure gained solid phase.
The present invention also provides application of the above-mentioned non-phosphate inhibitor in water process.Although the present invention is without spy
Other restriction, it should be appreciated that product made from the above method (i.e. above-mentioned non-phosphate inhibitor) is in water
Applied in processing as corrosion inhibiter.
Present invention also offers a kind of water treatment agent composition, said composition contains zinc salt and above-mentioned phosphorus delays
Lose agent.
Wherein, the zinc salt can effectively coordinate in water treatment procedure with above-mentioned phosphor corrosion inhibitor, from
And obtain preferable corrosion mitigating effect.The zinc salt can be the conventional various zinc salts in this area, such as nitre
One or more in sour zinc, zinc sulfate.
Under preferable case, the non-phosphate inhibitor (in terms of dry weight) with Zn2+The weight of the zinc salt of meter
Amount is than being 100：5-25, more preferably 100：6-20.Compound, can obtain in the range of the weight ratio
Obtain more preferable water treatment efficiency.
Present invention also offers application of the above-mentioned water treatment agent composition in water process.
In the case of, according to the invention it is preferred to, the dosage of the water treatment agent composition is 10-25mg/L
(on the basis of pending water).Under the conditions of meeting to be somebody's turn to do, the non-phosphate inhibitor (in terms of dry weight)
Dosage be 10-20mg/L, with Zn2+The dosage of the zinc salt of meter is 1-2.5mg/L.
The present invention will be described in detail by way of examples below.
Embodiment 1
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
15g glycine, 3.6g fructose and 100g water are stirred under room temperature (about 20 DEG C) to filling
Divide dissolving and mixing, and from room temperature (about 20 DEG C) after the 5g concentrated sulfuric acids (98 weight % concentration) are added
Stirring reacts 2h after being warming up to 110 DEG C, and after steaming 25g water, remaining liq obtains through being evaporated under reduced pressure
16.8g solids, as non-phosphate inhibitor A1.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A1 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 2
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
17.8g alanine, 7.2g galactolipins and 100g water are stirred under room temperature (about 20 DEG C)
To abundant dissolving and mixing, and after 18.5g concentrated nitric acids (65 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 150 DEG C after react 4h, after steaming 50g water, remaining liq is through being evaporated under reduced pressure to
To 21.4g solids, as non-phosphate inhibitor A2.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A2 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 3
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
13.3g aspartic acids, 9g glucose and 90g water are stirred under room temperature (about 20 DEG C) to
Fully dissolving and mixing, and after 15.7g concentrated nitric acids (65 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 140 DEG C after react 6h, after steaming 45g water, remaining liq is through being evaporated under reduced pressure to
To 17.8g solids, as non-phosphate inhibitor A3.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A3 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 4
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
14.7g glutamic acid, 15g ribose and 100g water are stirred under room temperature (about 20 DEG C) to filling
Divide dissolving and mixing, and from room temperature (about 20 DEG C) after the 10g concentrated sulfuric acids (98 weight % concentration) are added
Stirring reacts 8h after being warming up to 110 DEG C, and after steaming 30g water, remaining liq obtains through being evaporated under reduced pressure
24.3g solids, as non-phosphate inhibitor A4.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A4 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 5
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
7.3g glutamic acid, 18g glucose and 100g water are stirred under room temperature (about 20 DEG C) to
Fully dissolving and mixing, and after 11.5g concentrated nitric acids (65 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 130 DEG C after react 10h, after steaming 30g water, remaining liq through be evaporated under reduced pressure
Obtain 22.6g solids, as non-phosphate inhibitor A5.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A5 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 6
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
7.3g lysines, 45g ribose and 90g water are stirred to abundant under room temperature (about 20 DEG C)
Dissolving and mixing, and from room temperature (about 20 DEG C) after 15.7g concentrated nitric acids (65 weight % concentration) are added
Stirring reacts 3h after being warming up to 120 DEG C, and after steaming 35g water, remaining liq obtains through being evaporated under reduced pressure
49.6g solids, as non-phosphate inhibitor A6.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A6 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 7
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
13.3g aspartic acids, 10.8g glucose and 100g water are stirred under room temperature (about 20 DEG C) and mixed
Be bonded to fully dissolving and mixing, and after the 10g concentrated sulfuric acids (98 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 140 DEG C after react 6h, after steaming 45g water, remaining liq is through being evaporated under reduced pressure to
To 18.7g solids, as non-phosphate inhibitor A7.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A7 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 8
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
26.6g aspartic acids, 7.2g glucose and 100g water are stirred under room temperature (about 20 DEG C) and mixed
Be bonded to fully dissolving and mixing, and after the 10g concentrated sulfuric acids (98 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 130 DEG C after react 7h, after steaming 50g water, remaining liq is through being evaporated under reduced pressure to
To 30.2g solids, as non-phosphate inhibitor A8.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A8 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 9
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
13.3g aspartic acids, 7.2g glucose and 100g water are stirred under room temperature (about 20 DEG C) and mixed
Fully dissolving and mixing are bonded to, and from room temperature after the 7.5g concentrated sulfuric acids (98 weight % concentration) are added
(about 20 DEG C) stirrings react 6h after being warming up to 130 DEG C, and after steaming 40g water, remaining liq steams through decompression
Evaporate to obtain 16.9g solids, as non-phosphate inhibitor A9.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A9 there is-C (O)-O-C- to be connected with-NH-C-
The molecule of key.
Embodiment 10
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
13.3g aspartic acids, 18g glucose and 100g water are stirred under room temperature (about 20 DEG C)
To abundant dissolving and mixing, and after the 15g concentrated sulfuric acids (98 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 140 DEG C after react 6h, after steaming 45g water, remaining liq is through being evaporated under reduced pressure to
To 25.9g solids, as non-phosphate inhibitor A10.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A10 there is-C (O)-O-C- and-NH-C- to connect
Connect the molecule of key.
Embodiment 11
The present embodiment is used to illustrate non-phosphate inhibitor of the present invention and preparation method thereof.
26.6g aspartic acids, 5.9g glucose and 100g water are stirred under room temperature (about 20 DEG C) and mixed
Be bonded to fully dissolving and mixing, and after the 10g concentrated sulfuric acids (98 weight % concentration) are added from room temperature (about
20 DEG C) stirring be warming up to 140 DEG C after react 6h, after steaming 45g water, remaining liq is through being evaporated under reduced pressure to
To 29.5g solids, as non-phosphate inhibitor A11.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor A11 there is-C (O)-O-C- and-NH-C- to connect
Connect the molecule of key.
Comparative example 1
It is corrosion inhibiter only with aspartic acid, is expressed as DA1.
Comparative example 2
It is corrosion inhibiter only with glucose, is expressed as DA2.
Comparative example 3
The YSW-109 of the calm and peaceful water treatment agent Co., Ltd production in Shandong is used to be expressed as corrosion inhibiter
DA3。
Comparative example 4
The 1-hydroxy ethylidene-1,1-diphosphonic acid of the strong Yilong Industry Co., Ltd.'s production in Luoyang is used to be expressed as corrosion inhibiter
DA4。
Comparative example 5
The poly-aspartate that Tianjin five happinesses produce with safe Chemical Co., Ltd. is used to be expressed as corrosion inhibiter
DA5。
Comparative example 6
Using the mixture of 10.8g glucose and 13.3g aspartic acids as corrosion inhibiter, it is expressed as
DA6。
Comparative example 7
According to the method described in embodiment 1, the difference is that, 80 DEG C are only warming up to after adding the concentrated sulfuric acid,
Finally give 18.3g non-phosphate inhibitor DA7.
Through nuclear-magnetism or infrared identification, do not have-C (O)-O-C- and-NH-C- in non-phosphate inhibitor DA7
The molecule of connecting key.
Comparative example 8
According to the method described in embodiment 1, the difference is that, 180 DEG C are warming up to after adding the concentrated sulfuric acid, most
15.9g non-phosphate inhibitor DA8 is obtained eventually.
Through nuclear-magnetism or infrared identification, in non-phosphate inhibitor DA8 there is-C (O)-O-C- and-NH-C- to connect
Connect the molecule of key, but also oxygen containing cyclic structure and thick Precipitation compared with A1.
Corrosion inhibition test case 1
20# quality carbon steel test pieces are fixed on lacing film instrument, is put into and is added medicament (added amount of chemical is shown in Table
Shown in 2) test water (water quality is as shown in table 1) in, 45 ± 1 DEG C of steady temperature, keep rotating speed 75rpm
Rotation 72 hours, the weight of test piece before and after record experiment, calculates average corrosion rate and corrosion inhibition rate, knot
Fruit is shown in Table 2.
Average corrosion rate calculation formula is：F=(C × △ W)/(A × T × ρ)
C：When computational constant with mm/a (millimeter/year) is unit, C=8.76 × 107
△W：The corrosion weight loss (gram) of test specimen；A：Test specimen area (centimetre2)
T：The corrosion test time (hour)；ρ：Material for test density (kg/m3)
Corrosion inhibition rate calculation formula is：IE=100 × (W0-W1)/W0
W0The corrosion weight loss (gram) of test piece before and after being tested for blank solution；W1To be tried added with corrosion inhibitor solution
Test front and rear test piece corrosion weight loss (gram)
Table 1
| Ca2+/(mg/L) | Total alkalinity/(mg/L) | Mg2+/(mg/L) | Cl-/(mg/L) | SO4 2-/(mg/L) | pH |
| 500 | 100 | 200 | 700 | 200 | 8.0 |
Table 2
| Medicament | Dosage/mgL-1 | Corrosion rate/mma-1 | Corrosion inhibition rate/% |
| A1+Zn2+ | 15+2 | 0.055 | 91.0 |
| A2+Zn2+ | 15+1 | 0.049 | 92.0 |
| A3+Zn2+ | 15+2 | 0.028 | 95.4 |
| A4+Zn2+ | 15+2 | 0.045 | 92.6 |
| A5+Zn2+ | 15+2 | 0.040 | 93.5 |
| A6+Zn2+ | 15+2 | 0.036 | 94.1 |
| A7+Zn2+ | 15+2 | 0.025 | 95.9 |
| A8+Zn2+ | 15+2 | 0.033 | 94.6 |
| A9+Zn2+ | 18+1.5 | 0.031 | 94.9 |
| A10+Zn2+ | 13+2.5 | 0.022 | 96.4 |
| A11+Zn2+ | 15+2 | 0.041 | 93.3 |
| DA1+Zn2+ | 15+2 | 0.151 | 76.8 |
| DA2+Zn2+ | 15+2 | 0.311 | 52.2 |
| DA3 | 100 | 0.077 | 88.2 |
| DA4+Zn2+ | 15+2 | 0.046 | 92.8 |
| DA5+Zn2+ | 15+2 | 0.110 | 83.1 |
| DA6+Zn2+ | 15+2 | 0.177 | 72.8 |
| DA7+Zn2+ | 15+2 | 0.189 | 71.0 |
| DA8+Zn2+ | 15+2 | 0.264 | 59.4 |
| Blank | / | 0.651 | / |
Note：Zn2+It is to be provided by white vitriol.
The non-phosphate inhibitor of the present invention is can be seen that with being applied to follow after zinc salt compounding by the data of table 2
Ring water process has preferable remission effect to corrosion of carbon steel, and corrosion rate is in 0.055mma-1Hereinafter,
It is preferred that in 0.045mma-1Below；Corrosion inhibition rate is more than 91%, preferably more than 92.6%, more preferably
More than 93%；Even corrosion mitigating effect reach it is existing containing phosphor corrosion inhibitor (such as with the hydroxy ethylidene in comparative example 4
Di 2 ethylhexyl phosphonic acid) corrosion inhibition, even preferably corrosion inhibition.Wherein, glucose reacts with aspartic acid
Product corrosion mitigating effect is more preferable, and corrosion inhibition rate is more than 93%.
Heterotroph test case 2
By the corrosion inhibiter of gained in above-described embodiment and comparative example with certain dosage (being shown in Table 3)
Throwing is added in 200ml solution containing heterotroph, and the culture regular hour (is shown in Table 3 at 30 ± 1 DEG C
It is shown), the heterotroph number tested in water body, it the results are shown in Table shown in 3.
Table 3
It can be seen that by the data of table 3 when adding amino acid polymer or carbohydrate in infected water sample,
Heterotrophism bacterium number showed increased, and add the present invention prepare non-phosphate inhibitor when, to heterotroph in water sample
Several influence unobvious, it can thus be appreciated that shadow of the non-phosphate inhibitor of the invention to microorganism in recirculated water
Sound is smaller, is not easy to by microorganism using being grown and bred.
The preferred embodiment of the present invention described in detail above, still, the present invention is not limited to above-mentioned
Detail in embodiment, can be to the skill of the present invention in the range of the technology design of the present invention
Art scheme carries out a variety of simple variants, and these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned embodiment is special
Sign, in the case of reconcilable, can be combined, in order to avoid not by any suitable means
Necessary repetition, the present invention no longer separately illustrate to various combinations of possible ways.
In addition, various embodiments of the present invention can be combined randomly, as long as
, without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention for it.
Claims (12)
1. a kind of preparation method of non-phosphate inhibitor, it is characterised in that this method includes：Exist in acid
Under, saccharide compound and amino acid are subjected to haptoreaction in aqueous solvent；Wherein, the carbohydrate
One or more of the compound in monose；The catalytic condition includes：Temperature is
100-150 DEG C, time 2-10h.
2. the method according to claim 11, wherein, the amino acid and the saccharide compound
The mol ratio of dosage is 0.1-15：1, preferably 0.4-11：1, more preferably 0.45-10：1, it is more excellent
Elect 1-5 as：1；
Preferably, the mol ratio of the saccharide compound and the sour dosage is 1：0.5-5, more preferably
For 1：0.5-4.5, it is still more preferably 1：1-3.5.
3. method according to claim 1 or 2, wherein, the saccharide compound is selected from grape
One or more in sugar, fructose, galactolipin, ribose, xylose and mannose, preferably grape
Sugar；
Preferably, the amino acid is glycine, alanine, aspartic acid, glutamic acid, bad ammonia
Acid, leucine, valine, isoleucine, proline, phenylalanine, tryptophan, methionine,
One or more in serine, threonine, cysteine and tyrosine, more preferably glycine,
One or more in alanine, aspartic acid, glutamic acid and lysine；
Preferably, the acid is sulfuric acid and/or nitric acid, preferably sulfuric acid.
4. method according to claim 1 or 2, wherein, the saccharide compound is grape
Sugar, the amino acid are aspartic acid.
5. according to the method described in any one in claim 1-4, wherein, relative to 100 weight
The aqueous solvent of part, the dosage of the saccharide compound and amino acid is 15-80 parts by weight, preferably
For 20-60 parts by weight, more preferably 24-35 parts by weight.
6. according to the method described in any one in claim 1-5, wherein, it is described catalytic
Condition includes：Temperature is 120-140 DEG C, time 4-8h.
7. according to the method described in any one in claim 1-6, wherein, this method includes：First
The saccharide compound and the amino acid are mixed in the aqueous solvent, then introduce institute
State acid and carry out the haptoreaction.
8. the non-phosphate inhibitor as made from the method described in any one in claim 1-7.
9. application of the non-phosphate inhibitor described in claim 8 in water process.
10. a kind of water treatment agent composition, said composition contains zinc salt and without phosphorus described in claim 8
Corrosion inhibiter.
11. composition according to claim 10, wherein, the non-phosphate inhibitor with Zn2+
The weight ratio of the zinc salt of meter is 100：5-25, preferably 100：6-20.
12. application of the water treatment agent composition in water process described in claim 10 or 11.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550409.XA CN107619118B (en) | 2016-07-13 | 2016-07-13 | Phosphorus-free corrosion inhibitor, preparation method and application thereof, water treatment composition and application thereof |
Applications Claiming Priority (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698482A (en) * | 1979-12-31 | 1981-08-07 | Kouriyuu Kogyo Kk | Corrosion inhibitor |
| JPH01104787A (en) * | 1987-10-19 | 1989-04-21 | Mitsubishi Heavy Ind Ltd | Anticorrosive for soft water boiler |
| CN102627359A (en) * | 2012-04-24 | 2012-08-08 | 湖南省电力公司科学研究院 | Phosphorus-free composite corrosion and scale inhibitor containing natural biodegradable substances |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698482A (en) * | 1979-12-31 | 1981-08-07 | Kouriyuu Kogyo Kk | Corrosion inhibitor |
| JPH01104787A (en) * | 1987-10-19 | 1989-04-21 | Mitsubishi Heavy Ind Ltd | Anticorrosive for soft water boiler |
| CN102627359A (en) * | 2012-04-24 | 2012-08-08 | 湖南省电力公司科学研究院 | Phosphorus-free composite corrosion and scale inhibitor containing natural biodegradable substances |
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