CN106702396A - Cleaning passivator and preparation method - Google Patents
Cleaning passivator and preparation method Download PDFInfo
- Publication number
- CN106702396A CN106702396A CN201510793919.5A CN201510793919A CN106702396A CN 106702396 A CN106702396 A CN 106702396A CN 201510793919 A CN201510793919 A CN 201510793919A CN 106702396 A CN106702396 A CN 106702396A
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- CN
- China
- Prior art keywords
- cleaning
- nitrite
- parts
- passivation agent
- low mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
-
- 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/063—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
-
- 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Abstract
The invention provides a cleaning passivator. The cleaning passivator is prepared from, by weight, 1-30 parts of heteropolyacid, 1-10 parts of organic acid sodium salt, 10-40 parts of low mass molecule alcohol, 1-10 parts of benzotriazole, 5-20 parts of urotropin, 1-5 parts of a nitrogen-containing heterocyclic compound, 1-10 parts of sodium carbonate peroxide, 1-30 parts of nitrite and the balance deionized water. A preparation method of the cleaning passivator comprises the steps that the raw materials are ground and then are mixed and stirred to be uniform. The cleaning passivator has no corrosion and swelling functions on stainless steel and high polymer materials, the protein flocculation cleaning effect is quite remarkable, and the problems brought by high-temperature concentrated alkaline cleaning can be solved well; and in the cleaning process, passivation and degreasing on the stainless steel surfaces are completed, potassium ferricyanide-nitric acid is used for detecting the wall face passivation film quality, the detection standard is met, and therefore one reagent has multiple functions, and cost is reduced for enterprises.
Description
Technical field
The present invention relates to technical field of fine, more particularly to a kind of Cleaning and Passivation agent and preparation method.
Background technology
In biological fermentation process, microorganism is metabolized using materials such as nitrogenous, phosphorus, produces target product,
A large amount of useless protein are produced simultaneously.Although current gene technology is developed rapidly, for fermentation industry
Microorganism all greatly improves for the selectivity and yield of target product, the dud produced in metabolic process
Matter (protein) is fewer and feweri, but because the selection relativity of metabolic process is determined and can not possibly controlled completely
Make the generation of useless albumen.
And above-mentioned albumen and thalline can be attached to fermentor walls, interior exchanger tube wall, stirring after fermentation ends
On blade or axle, if above-mentioned substance is not cleaned, the influence to next group fermentation is fatal.
Because after each batch of fermentation ends, the microorganism having in air enters in kettle, is attached to inside fermentation tank
Protein and other dirts will turn into miscellaneous bacteria carrier.
The method that above-mentioned dirt is removed in traditional handicraft is the sodium hydrate aqueous solution of use quality concentration 2~5%,
Control temperature can remove the protein pollutant inside pipe wall and equipment dead angle at 80~90 DEG C.But use alkali
Liquid carries out cleaning can have problems with：
1 and the flange gasket and the sealing gasket of valve of equipment connection be polymer substance, temperature is higher
High alkali liquid can cause the swelling of pad, so as to influence the sealing effectiveness of valve or flange, this sends out in biology
Very serious consequence may be produced during ferment.
2nd, because the concentration and temperature of alkali lye are higher, operational danger is very high, and this brings to safety in production
Hidden danger.
3rd, the alkali lye of higher concentration and temperature, can have destruction for the finish of reactor inwall material,
Small molecular protein pollutant may be remained.
The cleaning process of stainless steel SS304 is degreasing, pickling and passivation.Degreasing can remove metal surface
Greasy dirt and other organic matters, are that follow-up pickling improves cleaning performance；And pickling will remove metal surface
Lower oxyde, while metal initial surface is exposed, that is, usually said " surface active "；
Passivation technology is that the surface of activation is become into advanced metal oxide, it is to avoid active surface is exposed to air
In produce rudimentary metal oxide again, protection metal surface will not carry out electrochemical corrosion reaction.
Traditional main concentrated nitric acid using 60% of passivation is soaked, using the acidity and oxygen of concentrated nitric acid
Change property SS304 surfaces formed passivating film, while by surface remaining iron ion or rudimentary metal oxide
Thoroughly cleaning is clean.There is problems with traditional passivation technology：
1. environment and Cost Problems.
After concentrated nitric acid passivation, substantial amounts of iron ion is contained in system, it is impossible to enough to repeat passivation cleaning, only
Discharged after neutralizing, waste water control is costly.
2. potential safety hazard is very big.
During the nitric acid that uses be 60% concentrated nitric acid (liquid), with extremely strong corrosion and oxidation,
Greatly, the live passivating solution of cleaning phenomenon of burning is of common occurrence for potential safety hazard during operation.
The content of the invention
It is corrosion-free and molten for stainless steel and macromolecular material the invention provides a kind of Cleaning and Passivation agent
Swollen effect, and albumen flocculation cleaning performance is clearly, can be cleaned with extraordinary solution high-temperature concentrated alkali
The problem brought；And i.e. passivation and degreasing of the completion to the surface of stainless steel during cleaning, make
Wall Chromating Film On Zn Deposits are detected with the potassium ferricyanide-nitric acid, meets examination criteria, tried with a kind of so as to reach
Agent has various functions, is that enterprise has saved cost.The technical scheme that the present invention is provided is as follows：
A kind of Cleaning and Passivation agent, including the raw material of following weight portion is constituted：Heteropoly acid 1-30, organic acid sodium
Salt 1-10, low mass molecule alcohol 10-40, BTA 1-10, methenamine 5-20, nitrogenous jeterocyclic chemistry
Compound 1-5, sodium carbonate peroxide 1-10, nitrite 1-30, deionized water surplus.
Above-mentioned Cleaning and Passivation agent, wherein, including following weight portion raw material composition：Heteropoly acid 10-20,
Organic acid sodium salt 5-10, low mass molecule alcohol 10-30, BTA 1-10, methenamine 5-20 are nitrogenous
Heterocyclic compound 1-5, sodium carbonate peroxide 1-5, nitrite 1-20, deionized water surplus.
Above-mentioned Cleaning and Passivation agent, wherein, including following weight portion raw material composition：Heteropoly acid 10-15,
Organic acid sodium salt 5-7, low mass molecule alcohol 10-20, BTA 1-5, methenamine 5-10 are nitrogenous
Heterocyclic compound 1-5, sodium carbonate peroxide 1-5, nitrite 1-20, deionized water surplus.
Above-mentioned Cleaning and Passivation agent, wherein, including following weight portion raw material composition：Heteropoly acid 13, has
Machine acid sodium-salt 6, low mass molecule alcohol 15, BTA 3, methenamine 7, nitrogenous heterocyclic compound 3,
Sodium carbonate peroxide 3, nitrite 10, deionized water surplus.
Above-mentioned Cleaning and Passivation agent, wherein, the heteropoly acid be 12- phosphotungstic acids, 12- phosphomolybdic acids in extremely
Few one kind, the organic acid sodium salt is at least in sodium citrate, sodium gluconate, disodium succinate
Kind, the low mass molecule alcohol is at least one in methyl alcohol, ethanol, propyl alcohol, butanol, the nitrogen heterocyclic ring
Compound is at least one in pyridine, benzimidazole, BTA, and the nitrite is nitrous
At least one in sour sodium, potassium nitrite, ammonium nilrite.
Above-mentioned Cleaning and Passivation agent, wherein, the heteropoly acid is 12- phosphotungstic acids, and the organic acid sodium salt is
Disodium succinate, the low mass molecule alcohol is ethanol, and the nitrogen-containing heterocycle compound is phenylpropyl alcohol triazole, institute
Nitrite is stated for natrium nitrosum.
Another side of the invention, a kind of preparation method of Cleaning and Passivation agent, it is to be ground every kind of component
After mill, mix 2~3 hours.
The invention provides a kind of Cleaning and Passivation agent and preparation method, wherein Cleaning and Passivation agent includes following weight
The raw material composition of part：Heteropoly acid 1-30, organic acid sodium salt 1-10, low mass molecule alcohol 10-40, the nitrogen of benzo three
Azoles 1-10, methenamine 5-20, nitrogenous heterocyclic compound 1-5, sodium carbonate peroxide 1-10, nitrous acid
Salt 1-30, deionized water surplus, Cleaning and Passivation agent of the invention is for stainless steel and the equal nothing of macromolecular material
Corrosion and swelling action, and albumen flocculation cleaning performance is clearly, can be with extraordinary solution high temperature
The problem that concentrated base cleaning tape comes；And completed during cleaning to the passivation on the surface of stainless steel and
Degreasing, wall Chromating Film On Zn Deposits are detected using the potassium ferricyanide-nitric acid, meet examination criteria, so as to reach
There are various functions with a kind of reagent, be that enterprise has saved cost.
Specific embodiment
In the following description, a large amount of concrete details are given to provide to the present invention more thoroughly
Understand.It is, however, obvious to a person skilled in the art that the present invention can be without one
Or multiple these details and be carried out.In other examples, in order to avoid obscuring with the present invention,
It is not described for some technical characteristics well known in the art.
In order to thoroughly understand the present invention, detailed step and detailed knot will be proposed in following description
Structure, to explain technical scheme.Presently preferred embodiments of the present invention is described in detail as follows, but
In addition to these detailed descriptions, the present invention can also have other embodiment.
The raw material composition of embodiment 1, a kind of Cleaning and Passivation agent, including following weight portion：Heteropoly acid 1g,
Organic acid sodium salt 1g, low mass molecule alcohol 10g, BTA 1g, methenamine 5g, nitrogenous jeterocyclic chemistry
Compound 1g, sodium carbonate peroxide 1g, nitrite 1g, deionized water 79g.
The raw material composition of embodiment 2, a kind of Cleaning and Passivation agent, including following weight portion：Heteropoly acid 30g,
Organic acid sodium salt 10g, low mass molecule alcohol 10g, BTA 10g, methenamine 20g, nitrogenous is miscellaneous
Cycle compound 5g, sodium carbonate peroxide 10g, nitrite 1g, deionized water 4g.
The raw material composition of embodiment 3, a kind of Cleaning and Passivation agent, including following weight portion：Heteropoly acid 10g,
Organic acid sodium salt 5g, low mass molecule alcohol 30g, BTA 10g, methenamine 5g, nitrogenous heterocycle
Compound 5g, sodium carbonate peroxide 5g, nitrite 20g, deionized water 20g.
The raw material composition of embodiment 4, a kind of Cleaning and Passivation agent, including following weight portion：Heteropoly acid 15g,
Organic acid sodium salt 5g, low mass molecule alcohol 10g, BTA 5g, methenamine 10g, nitrogenous heterocycle
Compound 1g, sodium carbonate peroxide 1g, nitrite 1g, deionized water 52g.
The raw material composition of embodiment 5, a kind of Cleaning and Passivation agent, including following weight portion：Heteropoly acid 13g,
Organic acid sodium salt 6g, low mass molecule alcohol 15g, BTA 3g, methenamine 7g, nitrogenous jeterocyclic chemistry
Compound 3g, sodium carbonate peroxide 3g, nitrite 10g, deionized water 40g.
Another side of the invention, a kind of preparation method of Cleaning and Passivation agent, it is to be ground every kind of component
After mill, mix 2~3 hours.To note here is that can directly add by by every kind of component
Enter in the fermentation tank for there are a large amount of protein pollutants to wall, stir 3 hours, directly stainless cylinder of steel is carried out
Cleaning, degreasing and passivation, after cleaning, degreasing and passivation are finished, substantial amounts of albumen sinks in Cleaning and Passivation agent
Starch, is filtered, and is reclaimed.
Every kind of component can also be stirred by milling apparatus, then Cleaning and Passivation agent is put into
The stainless cylinder of steel of cleaning, degreasing and passivation is needed, and is stirred 1.5 hours, completed to stainless cylinder of steel
Cleaning, degreasing and passivating process.
Hereinafter enumerate one specifically stainless cylinder of steel is cleaned, the operating process of degreasing and passivation.
Embodiment 6, cleaning volume is 10 cubic metres of reactors, and material SS304,1Cr18Ni9Ti are pressed
Certain ratio adds each component, such as heteropoly acid 1300Kg, organic acid sodium salt 600Kg, low molecule
Alcohol 1000Kg, BTA 300Kg, methenamine 100Kg, nitrogenous heterocyclic compound 300Kg,
Sodium carbonate peroxide 300Kg, nitrite 100Kg, deionized water 6600Kg, stir.Passivation time
After 1.5 hours, passivating solution is released, and using deionized water rinsing wall 2 times after, using the potassium ferricyanide-
Nitric acid detects wall Chromating Film On Zn Deposits, meets examination criteria.
8.5 cubic metres of passivating solution is reclaimed, proportion is 1.65kg/L；Mix 2 with 1400kg ether small
Shi Hou, stands 3 hours；Upper solution is separated and enters sewage disposal system, and it is true that lower floor's solution enters ether
Empty drying system, reclaims 12- phosphomolybdic acids and ether.
The rate of recovery of 12- phosphotungstic acids is 96%, and the ether rate of recovery is 92%.
In sum, the invention provides a kind of Cleaning and Passivation agent and preparation method, wherein Cleaning and Passivation agent
Raw material composition including following weight portion：Heteropoly acid 1-30, organic acid sodium salt 1-10, low mass molecule alcohol 10-40,
BTA 1-10, methenamine 5-20, nitrogenous heterocyclic compound 1-5, sodium carbonate peroxide 1-10,
Nitrite 1-30, deionized water surplus, Cleaning and Passivation agent of the invention is for stainless steel and macromolecule material
Expect corrosion-free and swelling action, and albumen flocculation cleaning performance is clearly, can be with extraordinary solution
The problem that certainly high-temperature concentrated alkali cleaning tape comes；And completed to the surface of stainless steel during cleaning
Passivation and degreasing, wall Chromating Film On Zn Deposits are detected using the potassium ferricyanide-nitric acid, meet examination criteria, so that
Reached has various functions with a kind of reagent, is that enterprise has saved cost.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the present invention not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure that do not describe in detail to the greatest extent are construed as using ability
Common mode in domain is practiced；Any those of ordinary skill in the art, are not departing from skill of the present invention
In the case of art aspects, all using the methods and techniques content of the disclosure above to technical solution of the present invention
Make many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations, this has no effect on
Substance of the invention.Therefore, every content without departing from technical solution of the present invention, according to the present invention
Technical spirit to any simple modification, equivalent variation and modification made for any of the above embodiments, still fall within
In the range of technical solution of the present invention protection.
Claims (7)
1. a kind of Cleaning and Passivation agent, it is characterised in that the raw material composition including following weight portion：Heteropoly acid
1-30, organic acid sodium salt 1-10, low mass molecule alcohol 10-40, BTA 1-10, methenamine 5-20,
Nitrogenous heterocyclic compound 1-5, sodium carbonate peroxide 1-10, nitrite 1-30, deionized water surplus.
2. a kind of Cleaning and Passivation agent as claimed in claim 1, it is characterised in that including following weight portion
Raw material composition：Heteropoly acid 10-20, organic acid sodium salt 5-10, low mass molecule alcohol 10-30, BTA
1-10, methenamine 5-20, nitrogenous heterocyclic compound 1-5, sodium carbonate peroxide 1-5, nitrite
1-20, deionized water surplus.
3. a kind of Cleaning and Passivation agent as claimed in claim 1, it is characterised in that including following weight portion
Raw material composition：Heteropoly acid 10-15, organic acid sodium salt 5-7, low mass molecule alcohol 10-20, BTA
1-5, methenamine 5-10, nitrogenous heterocyclic compound 1-5, sodium carbonate peroxide 1-5, nitrite 1-20,
Deionized water surplus.
4. a kind of Cleaning and Passivation agent as claimed in claim 1, it is characterised in that including following weight portion
Raw material composition：Heteropoly acid 13, organic acid sodium salt 6, low mass molecule alcohol 15, BTA 3, Wu Luo
Tropine 7, nitrogenous heterocyclic compound 3, sodium carbonate peroxide 3, nitrite 10, deionized water surplus.
5. a kind of Cleaning and Passivation agent as described in claim 1-4 is any, it is characterised in that described miscellaneous many
Acid is at least one in 12- phosphotungstic acids, 12- phosphomolybdic acids, and the organic acid sodium salt is sodium citrate, Portugal
At least one in grape sodium saccharate, disodium succinate, the low mass molecule alcohol be methyl alcohol, ethanol, propyl alcohol,
At least one in butanol, the nitrogen-containing heterocycle compound is in pyridine, benzimidazole, BTA
At least one, the nitrite be natrium nitrosum, potassium nitrite, ammonium nilrite at least one.
6. a kind of Cleaning and Passivation agent as claimed in claim 5, it is characterised in that the heteropoly acid is 12-
Phosphotungstic acid, the organic acid sodium salt is disodium succinate, and the low mass molecule alcohol is ethanol, the nitrogen-containing hetero
Cycle compound is phenylpropyl alcohol triazole, and the nitrite is natrium nitrosum.
7. the preparation method of Cleaning and Passivation agent as claimed in claim 5, it is characterised in that：Will be every
After kind component is ground, mix 2~3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510793919.5A CN106702396A (en) | 2015-11-17 | 2015-11-17 | Cleaning passivator and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510793919.5A CN106702396A (en) | 2015-11-17 | 2015-11-17 | Cleaning passivator and preparation method |
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Family
ID=58933032
Family Applications (1)
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| CN201510793919.5A Pending CN106702396A (en) | 2015-11-17 | 2015-11-17 | Cleaning passivator and preparation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107488860A (en) * | 2017-09-07 | 2017-12-19 | 上海蓝浦清洗技术有限公司 | Industrial machinery component surface cleaning agent |
| CN107603785A (en) * | 2017-09-07 | 2018-01-19 | 上海蓝浦清洗技术有限公司 | High ferro external surface cleaning agent |
| CN107740130A (en) * | 2017-09-07 | 2018-02-27 | 上海蓝浦清洗技术有限公司 | Oil, chemical plant installations and industrial low-foam antirust metal detergent |
| CN108677196A (en) * | 2018-06-14 | 2018-10-19 | 大连洁仕清洁用品有限公司 | The formula and preparation method of acid ferrous metal degreasing derusting rust-proofing cleaning agent |
| CN114032534A (en) * | 2021-11-02 | 2022-02-11 | 江苏嘉宏新材料有限公司 | Passivating agent for hydrogen peroxide device before driving and preparation and application methods thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107488860A (en) * | 2017-09-07 | 2017-12-19 | 上海蓝浦清洗技术有限公司 | Industrial machinery component surface cleaning agent |
| CN107603785A (en) * | 2017-09-07 | 2018-01-19 | 上海蓝浦清洗技术有限公司 | High ferro external surface cleaning agent |
| CN107740130A (en) * | 2017-09-07 | 2018-02-27 | 上海蓝浦清洗技术有限公司 | Oil, chemical plant installations and industrial low-foam antirust metal detergent |
| CN108677196A (en) * | 2018-06-14 | 2018-10-19 | 大连洁仕清洁用品有限公司 | The formula and preparation method of acid ferrous metal degreasing derusting rust-proofing cleaning agent |
| CN108677196B (en) * | 2018-06-14 | 2019-10-15 | 大连洁仕清洁用品有限公司 | The formula and preparation method of acid ferrous metal degreasing derusting rust-proofing cleaning agent |
| CN114032534A (en) * | 2021-11-02 | 2022-02-11 | 江苏嘉宏新材料有限公司 | Passivating agent for hydrogen peroxide device before driving and preparation and application methods thereof |
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Application publication date: 20170524 |