CN107217271A - It is without phosphorus except the agent of oil type powder cleaning and cleaning that a kind of magnetic oxygenated graphene fixes degradation bacteria - Google Patents
It is without phosphorus except the agent of oil type powder cleaning and cleaning that a kind of magnetic oxygenated graphene fixes degradation bacteria Download PDFInfo
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- CN107217271A CN107217271A CN201710612209.7A CN201710612209A CN107217271A CN 107217271 A CN107217271 A CN 107217271A CN 201710612209 A CN201710612209 A CN 201710612209A CN 107217271 A CN107217271 A CN 107217271A
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- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
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Abstract
The invention discloses a kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus except oil type powder cleaning agent, it is made up of following raw materials according：Sodium hydroxide, sodium carbonate, metasilicate pentahydrate sodium, silicon silicic acid organic carboxyl acid polymeric modification thing, neopelex, carbonyl alcohol ethoxylate, sodium gluconate, 1-isobutyl-3,5-dimethylhexylphosphoric acid, APEO, ethanedioic acid tetraacethyl disodium, graphene oxide, nano titanium oxide, carbodiimide hydrochloride, N HOSu NHSs, nano ferriferrous oxide, appropriate absolute ethyl alcohol, Sodium hydroxide q. s, 0.9% sodium chloride are appropriate, appropriate deionized water；Powder cleaning agent prepared by the present invention is not phosphorous, and raw material sources are wide, and preparation cost is low, nontoxic to environment, has preferable cleaning performance to various section bars, energy consumption is low, saves man-hour, improves efficiency, and the waste water produced is more disposable, is worthy to be popularized.
Description
Technical field
Degradation bacteria is fixed the present invention relates to metal conditioner technical field, more particularly to a kind of magnetic oxygenated graphene
It is without phosphorus to remove the agent of oil type powder cleaning and cleaning.
Background technology
Metal is carrying out before processing, it is necessary to wash the dirts such as antirust oil, the cutting fluid on surface, traditional metal surface is clear
Washing lotion is formulated based on alkali, phosphate builder, nonyl phenol or octyl group phenols surfactant, operating temperature during cleaning
Generally higher than 80 DEG C, the process energy consumption is big, and the surfactant containing phenols used has bio-toxicity, and difficult degradation is residual in water body
Stay the time long, if phosphate therein is not handled thoroughly during liquid waste processing, P elements therein can largely carry out natural water,
So as to cause the eutrophication problem of water body.
Zhang Xiaoming exists《The research of the without phosphorus degreasing powder of steel and iron parts》In one text by contrast test test it is different without phosphorus and
The performance of sodium triphosphate, considers the performance such as wash-aid effect and the binding force to calcium ions and magnesium ions, have selected silicon silicic acid organic
Carboxylic acid polymeric modification thing is as builder, to substitute phosphate builder, and this builder is not phosphorous, fundamentally solves
The processing of phosphorus and emission problem in waste liquid, at the same employ it is a kind of by Material synthesis of plant oleyl alcohol, the table that environmental-protecting performance is outstanding
Face activating agent-modification alcohol ethoxylate surfactant EH, as the key component of cleaning, this surfactant is relative
For widely used primary alcohol ethoxylate and NPE, wetability and detergency are stronger, compound with the moon
Ionic surface active agent and other nonionic surfactants, improve the efficiency of cleaning, cleaning temperature is reduced to 60 DEG C, bright
Aobvious reduces operating power consumption；And by the inspection in actual production, formula is optimized for actual electroplating enterprise
In, have the advantages that cleaning rate is fast, efficiency high, there is preferable cleansing power to different greasy dirts, it is not necessary in disposing waste liquid
Phosphate, simplify treatment process, reduce the usage amount of degreasing powder, reduce cost, reduce the COD of waste liquid, reduce
The characteristic of intractability.Although the method provided in this article has the advantages that environmental protection, cost is low and cleaning rate is fast etc.,
There is the alkali of higher concentration in degreasing powder, be not suitable for the pre-treatment of alloy, limit application field, and in use
Inevitably produce substantial amounts of oily waste liquor, although can clean the greasy dirt of steel surface can not but decompose greasy dirt, so being
Solve the above problems, also need to make its further modification it to be provided simultaneously with oil removing and decompose greasy dirt function, and expand and use
Scope, to meet the cleaning of various section bars.
The content of the invention
The object of the invention is exactly to fix degradation bacteria there is provided a kind of magnetic oxygenated graphene to make up the defect of prior art
It is without phosphorus to remove the agent of oil type powder cleaning and cleaning.
The present invention is achieved by the following technical solutions：
A kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus to remove oil type powder cleaning agent, is prepared and made by the raw material of following parts by weight
Into：Sodium hydroxide 13-15, sodium carbonate 22-25, metasilicate pentahydrate sodium 4-5, silicon silicic acid organic carboxyl acid polymeric modification thing 13-15, ten
Dialkyl benzene sulfonic acids sodium 2.8-3.3, carbonyl alcohol ethoxylate 1.5-1.7, sodium gluconate 2.3-2.6, dodecylphosphoric acid
Ester 1.1-1.5, APEO 1.1-1.4, ethanedioic acid tetraacethyl disodium 2.8-3.3, graphene oxide 9.5-11, nano-silica
Change titanium 2.6-2.9, carbodiimide hydrochloride 1.2-1.4, n-hydroxysuccinimide 4-4.5, nano ferriferrous oxide 1.8-
2.2nd, appropriate absolute ethyl alcohol, Sodium hydroxide q. s, 0.9% sodium chloride is appropriate, appropriate deionized water.
A kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus to remove oil type powder cleaning agent, by following specific steps system
Prepare into：
（1）Pedotheque will be gathered from the varying environment of oil pollution as bacterium source, and be added separately to be made in deionized water dense
Staticly settled after spending the soil liquid for 0.25g/ml, stirring 30min, 0.2g/ml is added after supernatant is mixed evenly
The leaching liquor of uncontaminated rich soil, control temperature is at 30 DEG C, and pH value is 7.5, by colony inoculation to crude oil minimal medium
Upper carry out enrichment culture, determines the degradation rate of oil, chooses the high bacterium of degradation rate and is used as purpose strain；
（2）By step（1）Obtained purpose bacteria culture fluid carries out tamed strain, is exposed using crude oil minimal medium
Gas domestication culture, it is 35 DEG C to control temperature, and pH value is 8.5, and the domestication of mixed liquor aeration determines residua content after 1 day, then quantitative
7# machine oil, Phos and inorganic nitrogen are supplemented, it is met carbon：Nitrogen：Phosphorus is 100:5:1, wherein carbon content is quality in domestication liquid
The 1% of fraction, the bacterium colony that oil degradation speed is fast, colonial morphology is consistent with thalli morphology is retained as purebred；
（3）Graphene oxide is added to ultrasonic disperse in deionized water and, into 1.2wt% dispersion liquid, adds carbodiimide hydrochloride
Salt and n-hydroxysuccinimide ultrasonic agitation reaction 30-50min, add nano titanium oxide and continue ultrasonic agitation 20-
24h, is centrifuged, and net rear dry for standby is washed with deionized water；Nano ferriferrous oxide is added in deionized water and is made
0.1mol/L's easily forgets, and adds the absolute ethyl alcohol strong stirring 1min of equal volume, adds above-mentioned standby mixed-powder and stir
Mix well mixed, 95% appropriate ethanol solution is then added dropwise, 24h is stored at room temperature after completion of dropwise addition, in nitrogen after drying
Protect calcined at lower 300 DEG C it is standby after 2-3h, cooling crush；
（4）By step（2）The strain that aeration domestication is obtained is inoculated into beef-protein medium, in 30 DEG C, 150r/min
3h is cultivated on constant temperature oscillator, each bacterial strain is in exponential phase, strain suspension is made, is inoculated into 5% inoculum concentration
In 100ml beef-protein mediums, 1wt% steps are then added（3）The product of preparation, in 30 DEG C of rotating speeds for 160rpm
Reaction 15-18h, is centrifuged off supernatant, lower floor is washed for several times with 0.9% sodium chloride solution, gained immobilized thallus in shaking table
Natural drying at room temperature is standby；
（5）By sodium hydroxide, sodium carbonate, metasilicate pentahydrate sodium and step（4）The product stirring mixing 3-5min of preparation, is added
Remaining remaining product stirring 5-10min, packaging can obtain compound powder cleaning agent.
It is without phosphorus except oil type powder cleaning agent, the crude oil inorganic salts training that a kind of magnetic oxygenated graphene fixes degradation bacteria
Support base formula be：7# machine oil 0.2-0.3%, sodium chloride 0.5-0.6%, ammonium sulfate 0.1-0.15%, magnesium sulfate 0.025-0.03%,
Sodium nitrate 0.2-0.25%, potassium dihydrogen phosphate 0.5-0.6%, dipotassium hydrogen phosphate 1.0-1.5%, agar 1.6-2%；The beef extract egg
The formula of peptone culture medium is in vain：Beef extract 3-4g/L, peptone 10-11g/L, sodium chloride 5-5.5g/L, agar 15-16g/L, plus
Deionized water is to 1L, and regulation pH is 7-7.2,121 DEG C of sterilizing 20min.
It is without phosphorus except the cleaning of oil type powder cleaning agent, including following step that a kind of magnetic oxygenated graphene fixes degradation bacteria
Suddenly：
（1）Compound powder cleaning agent is added to the cleaning fluid for being configured to that concentration is 55-65g/L in deionized water, cleaning is added to
In groove, adjustment system pH is 11-12.5；
（2）Workpiece is placed in rinse bath, in 55-60 DEG C of underflow stream immersion 5-10min.
It is an advantage of the invention that：Metal is carrying out before processing, it is necessary to wash the dirts such as antirust oil, the cutting fluid on surface
The processing of latter step can be carried out, although traditional phosphorus system cleaning agent is with good cleaning performance, to the eutrophy of water body
Change seriously replace by without phosphorus powder cleaning agent gradually, but without phosphorus cleaning agent is alkaline too weak, it is difficult to wash grease, it is dirty
Dirt, alkalescence is too strong then to have very strong corrosivity to metal base, if excessive use surfactant containing phenols, although cleaning
Effect is good, but has bio-toxicity, difficult degradation, and the residence time is long in water body, and can not decompose greasy dirt, liquid waste processing difficulty
Greatly, cost is high, for these problems present invention using strain sample is gathered from the environment of oil pollution, is carried out as bacterium source rich
Collection domestication culture filters out the high bacterial strain of degraded oil rate, and the surface and edge of graphene oxide have substantial amounts of carboxyl, hydroxyl
And cycloalkyl groups, these, which assign it, has a good water solubility, and these oxy radicals make graphene oxide be easy to by
Functionalization, and make using carbodiimide hydrochloride and n-hydroxysuccinimide the carboxyl-functional of surface of graphene oxide,
Titanium dioxide has the performance of good photocatalysis, sterilization and degraded, and titanium dioxide efficient stable is supported on into graphite oxide
Alkene surface, magnetic material has the characteristics such as good biocompatibility, source wide, easy preparation, hypotoxicity, is answered with extensive
With being prepared for the graphene oxide composite material of magnetic loading titanium dioxide by sol-gel process, have to degradation bacteria negative well
Carry the progress compounding such as effect, and non-phosphorus builder, the surfactant filtered out and compound powder cleaning agent is made, can not only
The greasy dirt on cleaning workpiece surface, has decomposition, catalytic action well to oily waste water, reduces COD value, reduce the place of waste water
Manage difficulty and processing cost, and the degradation bacteria fixed of magnetic carrier can magnetic recovery utilize, reduce cost, prepared by the present invention
Powder cleaning agent it is not phosphorous, raw material sources are wide, and it is low to prepare cost, nontoxic to environment, has to various section bars preferable
Cleaning performance, energy consumption is low, saves man-hour, improves efficiency, and the waste water produced is more disposable, is worthy to be popularized.
Embodiment
A kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus to remove oil type powder cleaning agent, by following parts by weight（Kilogram）'s
Raw material is made：Sodium hydroxide 13, sodium carbonate 22, metasilicate pentahydrate sodium 4, silicon silicic acid organic carboxyl acid polymeric modification thing 13, ten
Dialkyl benzene sulfonic acids sodium 2.8, carbonyl alcohol ethoxylate 1.5, sodium gluconate 2.3,1-isobutyl-3,5-dimethylhexylphosphoric acid 1.1, polyoxy second
Alkene ether 1.1, ethanedioic acid tetraacethyl disodium 2.8, graphene oxide 9.5, nano titanium oxide 2.6, carbodiimide hydrochloride 1.2, N
HOSu NHS 4, nano ferriferrous oxide 1.8, appropriate absolute ethyl alcohol, Sodium hydroxide q. s, 0.9% sodium chloride are appropriate, go
Ion appropriate amount of water.
A kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus to remove oil type powder cleaning agent, by following specific steps system
Prepare into：
（1）Pedotheque will be gathered from the varying environment of oil pollution as bacterium source, and be added separately to be made in deionized water dense
Staticly settled after spending the soil liquid for 0.25g/ml, stirring 30min, 0.2g/ml is added after supernatant is mixed evenly
The leaching liquor of uncontaminated rich soil, control temperature is at 30 DEG C, and pH value is 7.5, by colony inoculation to crude oil minimal medium
Upper carry out enrichment culture, determines the degradation rate of oil, chooses the high bacterium of degradation rate and is used as purpose strain；
（2）By step（1）Obtained purpose bacteria culture fluid carries out tamed strain, is exposed using crude oil minimal medium
Gas domestication culture, it is 35 DEG C to control temperature, and pH value is 8.5, and the domestication of mixed liquor aeration determines residua content after 1 day, then quantitative
7# machine oil, Phos and inorganic nitrogen are supplemented, it is met carbon：Nitrogen：Phosphorus is 100:5:1, wherein carbon content is quality in domestication liquid
The 1% of fraction, the bacterium colony that oil degradation speed is fast, colonial morphology is consistent with thalli morphology is retained as purebred；
（3）Graphene oxide is added to ultrasonic disperse in deionized water and, into 1.2wt% dispersion liquid, adds carbodiimide hydrochloride
Salt and N HOSu NHSs ultrasonic agitation reaction 30min, add nano titanium oxide and continue ultrasonic agitation 20h, centrifugation point
From dry for standby after being washed with deionized water only；Nano ferriferrous oxide is added to the easy of 0.1mol/L is made in deionized water
Forget, add the absolute ethyl alcohol strong stirring 1min of equal volume, add above-mentioned standby mixed-powder and be uniformly mixed, then
95% appropriate ethanol solution is added dropwise, 24h is stored at room temperature after completion of dropwise addition, is forged after drying under the protection of nitrogen at 300 DEG C
Burn standby after 2h, cooling crush；
（4）By step（2）The strain that aeration domestication is obtained is inoculated into beef-protein medium, in 30 DEG C, 150r/min
3h is cultivated on constant temperature oscillator, each bacterial strain is in exponential phase, strain suspension is made, is inoculated into 5% inoculum concentration
In 100ml beef-protein mediums, 1wt% steps are then added（3）The product of preparation, in 30 DEG C of rotating speeds for 160rpm
Reaction 15h, is centrifuged off supernatant, lower floor is washed for several times with 0.9% sodium chloride solution, gained immobilized thallus room in shaking table
Temperature spontaneously dries standby；
（5）By sodium hydroxide, sodium carbonate, metasilicate pentahydrate sodium and step（4）The product stirring mixing 3min of preparation, adds it
Remaining remaining product stirring 5min, packaging can obtain compound powder cleaning agent.
It is without phosphorus except oil type powder cleaning agent, the crude oil inorganic salts training that a kind of magnetic oxygenated graphene fixes degradation bacteria
Support base formula be：7# machine oil 0.2%, sodium chloride 0.5%, ammonium sulfate 0.1%, magnesium sulfate 0.025%, sodium nitrate 0.2%, di(2-ethylhexyl)phosphate
Hydrogen potassium 0.5%, dipotassium hydrogen phosphate 1.0%, agar 1.6%；The formula of the beef-protein medium is：Beef extract 3g/L, egg
White peptone 10g/L, sodium chloride 5g/L, agar 15g/L plus deionized water are to 1L, and regulation pH is 7,121 DEG C of sterilizing 20min.
It is without phosphorus except the cleaning of oil type powder cleaning agent, including following step that a kind of magnetic oxygenated graphene fixes degradation bacteria
Suddenly：
（1）Compound powder cleaning agent is added to the cleaning fluid for being configured to that concentration is 55g/L in deionized water, rinse bath is added to
In, adjustment system pH is 11；
（2）Workpiece is placed in rinse bath, in 55 DEG C of underflow stream immersion 5min.
Cleaning fluid is configured to without phosphorus powder cleaning agent prepared by embodiment, 45# steel and LY12 aluminium alloys are impregnated respectively
5min is cleaned, observation is taken out：Surface illustrates that the powder cleaning agent has Rapid Cleaning and decomposes greasy dirt without oil bloom, decoction clarification
Effect.
Claims (4)
1. a kind of magnetic oxygenated graphene is fixed, degradation bacteria is without phosphorus to remove oil type powder cleaning agent, it is characterised in that by following weight
The raw material of part is made：Sodium hydroxide 13-15, sodium carbonate 22-25, metasilicate pentahydrate sodium 4-5, the polymerization of silicon silicic acid organic carboxyl acid
Modifier 13-15, neopelex 2.8-3.3, carbonyl alcohol ethoxylate 1.5-1.7, sodium gluconate 2.3-
2.6th, 1-isobutyl-3,5-dimethylhexylphosphoric acid 1.1-1.5, APEO 1.1-1.4, ethanedioic acid tetraacethyl disodium 2.8-3.3, graphite oxide
Alkene 9.5-11, nano titanium oxide 2.6-2.9, carbodiimide hydrochloride 1.2-1.4, n-hydroxysuccinimide 4-4.5, nanometer
Ferroso-ferric oxide 1.8-2.2, appropriate absolute ethyl alcohol, Sodium hydroxide q. s, 0.9% sodium chloride are appropriate, appropriate deionized water.
2. a kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus according to claim 1 removes oil type powder cleaning agent, it is special
Levy and be, be made up of following specific steps：
（1）Pedotheque will be gathered from the varying environment of oil pollution as bacterium source, and be added separately to be made in deionized water dense
Staticly settled after spending the soil liquid for 0.25g/ml, stirring 30min, 0.2g/ml is added after supernatant is mixed evenly
The leaching liquor of uncontaminated rich soil, control temperature is at 30 DEG C, and pH value is 7.5, by colony inoculation to crude oil minimal medium
Upper carry out enrichment culture, determines the degradation rate of oil, chooses the high bacterium of degradation rate and is used as purpose strain；
（2）By step（1）Obtained purpose bacteria culture fluid carries out tamed strain, is exposed using crude oil minimal medium
Gas domestication culture, it is 35 DEG C to control temperature, and pH value is 8.5, and the domestication of mixed liquor aeration determines residua content after 1 day, then quantitative
7# machine oil, Phos and inorganic nitrogen are supplemented, it is met carbon：Nitrogen：Phosphorus is 100:5:1, wherein carbon content is quality in domestication liquid
The 1% of fraction, the bacterium colony that oil degradation speed is fast, colonial morphology is consistent with thalli morphology is retained as purebred；
（3）Graphene oxide is added to ultrasonic disperse in deionized water and, into 1.2wt% dispersion liquid, adds carbodiimide hydrochloride
Salt and n-hydroxysuccinimide ultrasonic agitation reaction 30-50min, add nano titanium oxide and continue ultrasonic agitation 20-
24h, is centrifuged, and net rear dry for standby is washed with deionized water；Nano ferriferrous oxide is added in deionized water and is made
0.1mol/L's easily forgets, and adds the absolute ethyl alcohol strong stirring 1min of equal volume, adds above-mentioned standby mixed-powder and stir
Mix well mixed, 95% appropriate ethanol solution is then added dropwise, 24h is stored at room temperature after completion of dropwise addition, in nitrogen after drying
Protect calcined at lower 300 DEG C it is standby after 2-3h, cooling crush；
（4）By step（2）The strain that aeration domestication is obtained is inoculated into beef-protein medium, in 30 DEG C, 150r/min
3h is cultivated on constant temperature oscillator, each bacterial strain is in exponential phase, strain suspension is made, is inoculated into 5% inoculum concentration
In 100ml beef-protein mediums, 1wt% steps are then added（3）The product of preparation, in 30 DEG C of rotating speeds for 160rpm
Reaction 15-18h, is centrifuged off supernatant, lower floor is washed for several times with 0.9% sodium chloride solution, gained immobilized thallus in shaking table
Natural drying at room temperature is standby；
（5）By sodium hydroxide, sodium carbonate, metasilicate pentahydrate sodium and step（4）The product stirring mixing 3-5min of preparation, is added
Remaining remaining product stirring 5-10min, packaging can obtain compound powder cleaning agent.
3. a kind of magnetic oxygenated graphene fixation degradation bacteria is without phosphorus according to claim 2 removes oil type powder cleaning agent, it is special
Levy and be, the formula of the crude oil minimal medium is：7# machine oil 0.2-0.3%, sodium chloride 0.5-0.6%, ammonium sulfate 0.1-
0.15%th, magnesium sulfate 0.025-0.03%, sodium nitrate 0.2-0.25%, potassium dihydrogen phosphate 0.5-0.6%, dipotassium hydrogen phosphate 1.0-
1.5%th, agar 1.6-2%；The formula of the beef-protein medium is：Beef extract 3-4g/L, peptone 10-11g/L, chlorine
Change sodium 5-5.5g/L, agar 15-16g/L plus deionized water to 1L, regulation pH is 7-7.2,121 DEG C of sterilizing 20min.
It is without phosphorus except the cleaning of oil type powder cleaning agent that 4. a kind of magnetic oxygenated graphene fixes degradation bacteria, it is characterised in that
Comprise the following steps：
（1）Compound powder cleaning agent is added to the cleaning fluid for being configured to that concentration is 55-65g/L in deionized water, cleaning is added to
In groove, adjustment system pH is 11-12.5；
（2）Workpiece is placed in rinse bath, in 55-60 DEG C of underflow stream immersion 5-10min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612209.7A CN107217271A (en) | 2017-07-25 | 2017-07-25 | It is without phosphorus except the agent of oil type powder cleaning and cleaning that a kind of magnetic oxygenated graphene fixes degradation bacteria |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612209.7A CN107217271A (en) | 2017-07-25 | 2017-07-25 | It is without phosphorus except the agent of oil type powder cleaning and cleaning that a kind of magnetic oxygenated graphene fixes degradation bacteria |
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| CN107675188A (en) * | 2017-10-10 | 2018-02-09 | 张静 | A kind of preparation method of degreasing agent |
| CN109234049A (en) * | 2018-10-17 | 2019-01-18 | 荆州市活力二八家化有限公司 | A kind of disinfection and sterilization concentrated cleaning of the ammonium chloride of hydroxyethyl dimethyl containing lauryl |
| CN115975746A (en) * | 2022-12-29 | 2023-04-18 | 陕西瑞益隆科环保科技有限公司 | Scale inhibitor for coking plant equipment and preparation method thereof |
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| US20040152611A1 (en) * | 2000-06-13 | 2004-08-05 | Kim In Kyu | Method for manufacturing an active component of surfactant, aurfactant and a method for using the surfactant |
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| CN107675188A (en) * | 2017-10-10 | 2018-02-09 | 张静 | A kind of preparation method of degreasing agent |
| CN109234049A (en) * | 2018-10-17 | 2019-01-18 | 荆州市活力二八家化有限公司 | A kind of disinfection and sterilization concentrated cleaning of the ammonium chloride of hydroxyethyl dimethyl containing lauryl |
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