CN109234744A - A kind of environment-friendly rust remover and preparation method thereof - Google Patents
A kind of environment-friendly rust remover and preparation method thereof Download PDFInfo
- Publication number
- CN109234744A CN109234744A CN201811285730.5A CN201811285730A CN109234744A CN 109234744 A CN109234744 A CN 109234744A CN 201811285730 A CN201811285730 A CN 201811285730A CN 109234744 A CN109234744 A CN 109234744A
- Authority
- CN
- China
- Prior art keywords
- acid
- rust remover
- derusting
- environment
- steel
- 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.)
- Pending
Links
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
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
-
- 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
- C23G1/065—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors sulfur-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of environment-friendly rust removers and preparation method thereof, by weight, including following composition: sulfamic acid 100g, citric acid 100g, isopropanol 15g, HEDP100g, thiocarbamide 5g, 1308 5g of isomery alcohol ether are added water and are added to 1000g.The preparation method of environment-friendly rust remover includes the following steps: according to the ratio to weigh above-mentioned material；Above-mentioned material is added while stirring, sufficiently dissolution, it stirs to transparence, it is configured to 1000g deruster, the purpose of the present invention is to provide one kind can replace the derusting of the strong acid such as hydrochloric acid, sulfuric acid, and no acid mist, free from extraneous odour be nontoxic, safety and environmental protection, effectively improves working efficiency and acid solution service life, processing is simple, reduces environment-friendly rust remover of production cost and preparation method thereof.
Description
Technical field
The present invention relates to rust remover fields more particularly to a kind of environment-friendly rust remover and preparation method thereof.
Background technique
Ferrous metal (steel) is placed under outdoor or open-air condition and gets rusty easily, and not only influences presentation quality, also will affect
Being normally carried out for the techniques such as spraying, plating, bonding, such as handles not in time, but will cause scrapping for material, lead to unnecessary warp
Ji loss.
Current derusting method mainly has Mechanical Method, chemical method two major classes.Mechanical Method is by manually striking shovel, polishing and sandblasting
Processing, the disadvantage is that large labor intensity, low efficiency, dust pollution are serious, and are limited by Components Shape, side, corner angle, re-entrant angle and
The rust of capillary inside diameter is difficult to clean off completely.Chemical method has effect good, high-efficient, the series of advantages such as simple process and low cost,
It is the developing direction of current rust remover.Traditional chemical derusting is usually using strong acid such as hydrochloric acid, sulfuric acid, nitric acid, in treatment process
In a large amount of hydrogen generation steel can be made to generate Hydrogen Brittleness Phenomena, cause the mechanical properties decrease of metal, influence the strong of steel itself
Degree；Acid mist is easily formed simultaneously, influences equipment and environment around the health and corrosion of operator；The consumption of acid solution also compared with
Greatly, increase processing cost；Strong acid can form excessive erosion to steel, and the residue furthermore largely generated need to be discharged often, i.e., serious rotten
Lose industrial pipeline, and contaminated soil and environment.In addition, hydrochloric acid, nitric acid, sulfuric acid are that easily system poison easily makes quick-fried hazardous chemical, by public affairs
Pacify organ's control；It is limited during production and transport by relevant laws and regulations.
Summary of the invention
It is removed the technical problem to be solved by the embodiment of the invention is that providing one kind and can replace the strong acid such as hydrochloric acid, sulfuric acid
Rust, no acid mist, free from extraneous odour be nontoxic, safety and environmental protection, effectively improves working efficiency and acid solution service life, and processing is simple, reduces life
Produce the environment-friendly rust remover and preparation method thereof of cost.
The environment-friendly rust remover, by weight, including following composition: sulfamic acid 100g, citric acid 100g, isopropanol
15g, HEDP100g, thiocarbamide 5g, 1308 5g of isomery alcohol ether, add water and add to 1000g.
The preparation method of environment-friendly rust remover, includes the following steps:
(1) above-mentioned material is weighed according to the ratio；
(2) above-mentioned material is added while stirring, sufficiently dissolves, stirs to transparence, is configured to 1000g deruster；Its
In, citric acid, sulfamic acid as rust remover main component, in rust remover be used as complexant, be coordinated constantly generate divalent,
Ferric ion reduces free iron, and accelerated oxidation object is reacted with acid, achievees the purpose that quick derusting；Isopropanol rises
The effect of infiltration reacts main component with rusty scale more completely, sufficiently, the ferrous iron that HEDP can effectively in network and acid solution, and sinks
It forms sediment and keeps the transparent of acid solution；Thiocarbamide is adsorbed on the surface of steel as corrosion inhibiter, and steel and medium is isolated, reduce metal by
Damage；Surfactant isomery alcohol ether 1308 reduces surface tension, combines corrosion inhibiter preferably with steel, and reduce rust remover
Interaction between molecule, meanwhile, emulsification, washing, infiltration thickening power are played, removes the grease of steel surface, and inhibit acid
Mist.
The implementation of the embodiments of the present invention has the following beneficial effects:
A kind of environment-friendly rust remover of the embodiment of the present invention and preparation method thereof, citric acid, sulfamic acid be rust remover main body at
Point, HEDP is complexing agent, and thiocarbamide is corrosion inhibiter, and isopropanol is bleeding agent, and micro sulfuric acid is the RSQ-401 ring of PH regulator composition
Protect rust remover.Nontoxic, safe and environment-friendly, derusting speed is fast, easily rinses, has certain corrosion mitigating effect, above-mentioned material is claimed according to the ratio
Amount, is added above-mentioned material while stirring, sufficiently dissolves, and stirs to transparence, is configured to 1000g deruster；Citric acid, amino
Sulfonic acid is used as complexant as rust remover main component in rust remover, is coordinated the divalent constantly generated, ferric ion, makes
Free iron is reduced, and accelerated oxidation object is reacted with acid, achievees the purpose that quick derusting；Isopropanol plays infiltration, makes
Main component is reacted more completely, sufficiently with rusty scale, the ferrous iron that HEDP can effectively in network and acid solution, and is precipitated and kept the saturating of acid solution
It is bright；Thiocarbamide is adsorbed on the surface of steel as corrosion inhibiter, and steel and medium is isolated, reduces metal damage；Surfactant is different
Structure alcohol ether 1308 reduces surface tension, combines corrosion inhibiter preferably with steel, and reduces mutual between derusting agent molecule
Effect, meanwhile, emulsification, washing, infiltration thickening power are played, removes the grease of steel surface, and inhibit acid mist.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention will be made below further detailed
Description.
1 derusting principle
The corrosion (mFe2O3m1Fe2O3nFeOnH2O) that steel surface is generated by corrosion is loose more empties,
Surface area is very big.Outermost layer Fe2O3 is folder spinel structure, and finer and close, it has certain protective role, but cannot prevent water and oxygen
Infiltration.The FeO structural instability of inner layer, it can be generated with water
Fe (OH) 2, but can act on generation Fe2O3xH2O. with oxygen to remove the principle of rust deposite is to be easy to permeate using acid solution
Be diffused into rust deposite and go and chemical reaction occurs rapidly and makes it dissolve and becomes molysite and ferrous salt, Fe3+, Fe2+ again with network and agent
Reaction generates stable network and ion, achievees the purpose that thoroughly to eliminate.Its main reaction equation is as follows:
6H++Fe2O3→2Fe3++3H2O
2H++FeO→Fe2++H2O
8H++Fe3O4→Fe2++2Fe3++4H2O
2Fe2++Fe→3Fe2-
2H++Fe→Fe2++H2
-
2 conceptual designs
According to steel derusting principle and form of construction work, we are designed using citric acid, sulfamic acid as rust remover bulk composition,
HEDP is complexing agent, and thiocarbamide is corrosion inhibiter, and isopropanol is bleeding agent, and micro sulfuric acid is the RSQ-401 environmental protection of PH regulator composition
Rust remover.Nontoxic, safe and environment-friendly, derusting speed is fast, easily rinses, there is certain corrosion mitigating effect.
2.1 test material
Test piece is cold-rolled steel sheet, and specification 50mm × 25mm × 0.5mm is placed in outdoor exposure 7 after oil removing, rust and washing
It, is made test piece of getting rusty, and corrosion degree is equivalent to the heavy rust grade in GB/T12612-90 standard.Also using unprocessed in test
Original cold-rolled steel sheet (hereinafter referred to as oxide skin test piece)
Raw material: sulfamic acid, citric acid, HEDP, isopropanol, thiocarbamide, isomery alcohol ether 1308 are technical grade, using certainly
Water is prepared.
2.2 key instrument
78-1 type magnetic heating stirrer, FA2014N type electronic balance, HHC type heated-air circulation oven, KRUSS
The full-automatic surface tension instrument of K100MK3 type.PHS-25 type pH meter, 8559026 type viscosity apparatus of LVDV-IIIV.
The preparation of 2.3 Environment-friendlyrust rust inhibitors
2.3.1 basic components
Above-mentioned material is weighed according to the ratio, above-mentioned material is added while stirring, is sufficiently dissolved, stirring to transparence is prepared
At 1000g deruster；Citric acid, sulfamic acid are used as complexant, coordination is not as rust remover main component in rust remover
The raw divalent of stopping pregnancy, ferric ion, reduce free iron, and accelerated oxidation object is reacted with acid, reach quick derusting
Purpose；Isopropanol plays infiltration, make main component react with rusty scale more completely, it is abundant, HEDP can be in effective network and acid solution
Ferrous iron, and precipitate keep acid solution it is transparent；Thiocarbamide is adsorbed on the surface of steel as corrosion inhibiter, make steel and medium every
From reduction metal damage；Surfactant isomery alcohol ether 1308 reduces surface tension, ties corrosion inhibiter preferably with steel
It closes, and reduces the interaction between derusting agent molecule, meanwhile, emulsification, washing, infiltration thickening power are played, steel surface is removed
Grease, and inhibit acid mist.
2.3.2 test method
2.3.2.1 corrosion rate
Petroleum ether is weighed after cleaning the rustless cold-rolled steel sheet of drying, is then placed in 50 DEG C of rust remover and is soaked 30min, then uses water
It cleans, drying, weighing.Corrosion rate is found out using weight-loss method:
U=(W1-W2)/(S × t)
In formula, u is corrosion rate, g/ (cm2h)；W1 is the quality for being put into rust remover front spring, g；W2 is to be put into derusting
The quality of steel plate, g after agent；S is the area of test piece, cm2；T is etching time, h.
2.3.2.2 inhibition efficiency
Inhibition efficiency is calculated using following formula:
θ=(u0-u1)/u0 × 100%
In formula: θ is inhibition efficiency, %；U0 is corrosion rate when not adding corrosion inhibiter, g/ (m2h)；
U1 is corrosion rate when adding corrosion inhibiter, g/ (m2h)；
2.3.2.3 derusting rate
Inhibition efficiency is calculated using following formula:
η=(m1-m2)/(m1-m3) × 100%
In formula: η is derusting rate, %；M1 is the quality that the mild steel plate of iron rust is attached with before derusting, g；M2 is to utilize rust remover
The quality of mild steel plate after rust and washing, drying, g.After m3 is derusts using rust remover, then it is molten in the citric acid of 50 DEG C, 10%
30min is impregnated in liquid, the quality of the mild steel plate after all removing iron rust, washing, drying, g.
2.3.2.4 derust rate
Derusting rate is found out using weight-loss method.Under conditions of the iron plate area that gets rusty is roughly the same, the calculating for the rate that derusts
Formula are as follows:
K=(m0-m1)/t
In formula: K is derusting rate, g/h；M0 is the quality before derusting, g；M1 is the quality after derusting, g；When t is derusting
Between, h.
3. results and discussion
The determination of 3.1 organic acid quality
Organic acid matches in rust remover: citric acid: sulfamic acid: HEDP=1:1:1
Rust remover be using acid as main component, it is molten as the mixing of auxiliary element using complexing agent, corrosion inhibiter, surfactant
Liquid.With the increase of acid concentration, the derusting ability of pickling solution enhances, and the extent of corrosion of basis material can also increase at the same time
Add.But sour dosage is very few, and difficulty reaches derusting effect.The H+ and metal oxide that citric acid, sulfamic acid, HEDP hydrolysis generate
It reacts, and the acid ion of citric acid, sulfamic acid is coordinated the divalent constantly generated, ferric ion, makes free
Iron ion is reduced, and is conducive to the progress that H+ is reacted with iron rust, accelerates the dissolution of iron rust, and HEDP network and iron ion accelerate reaction.
Under conditions of 1308 5g of isomery alcohol ether, thiocarbamide 5g, isopropanol 15g, 25 DEG C of temperature, the quality of organic acid is had studied to derusting
The influence of rate and derusting rate.As a result as shown in table 1 below.
Influence of 1 organic acid of table to derusting (in terms of 1000g)
As shown in Table 1: when the quality of organic acid increases to 300g by 100g, the rate that derusts and derusting rate are significantly risen
It is high；When the quality of organic acid is more than 300g, the rate that derusts and the rising of derusting rate are unobvious.Therefore, from derusting rate, derusting rate
It maximally utilizes etc. and considers with resource, select the quality of organic acid for 300g.That is citric acid 10%, sulfamic acid 10%,
HEDP 10%.
The determination of 3.2 corrosion inhibiter quality
Corrosion inhibiter can be adsorbed on steel product surface, and steel and medium is isolated, to reduce the corrosion rate of steel, has
Effect inhibits the strong corrosion effect of acid, reduces metal damage.In citric acid 100g, sulfamic acid 100g, HEDP 100g is different
Structure alcohol ether 1308 5g, isopropanol 15g；Under conditions of 25 DEG C of temperature, the quality of corrosion inhibiter is had studied to corrosion rate and turnover rate
Influence, the results are shown in Table 2:
2 corrosion inhibiter of table is to corrupting influence
As shown in Table 2: with the increase of the quality of corrosion inhibiter, corrosion rate is gradually decreased, and inhibition efficiency gradually rises；When
When the quality of corrosion inhibiter is more than 5g, the trend that corrosion rate does not slow down significantly, and inhibition efficiency is without apparent increase.It is comprehensive
The most effective principle utilized and cost is minimum of resource, the quality of corrosion inhibiter are determined as 5g (0.5%)
The determination of 3.3 surfactant isomery alcohol ether, 1308 mass
Surfactant plays infiltration, thickening, reduces surface tension, washing, improves the effects of stability.In citric acid
100g, sulfamic acid 100g, HEDP 100g, corrosion inhibiter 5g, bleeding agent isopropanol 15g, under conditions of 25 DEG C of temperature, according to removing
The surface tension of agent of becoming rusty determines the quality of surfactant.The results are shown in Table 3:
The influence of 1308 pairs of 3 surfactant isomery alcohol ether of table derusting
As shown in Table 3: with the increase of 1308 mass of isomery alcohol ether, the rate that derusts is correspondinglyd increase.This is because isomery alcohol
Ether 1308 along steel surface gap penetration between metallic matrix and oxide skin, greasy dirt can also be removed, to improve derusting
Rate.In addition, surface tension reduces with the increase of surfactant qualities, viscosity increases, and subtracts the mobility of rust remover
It is weak, convenient for brushing or coating in vertical or inclined surface, improve rust cleaning efficiency.Expand its application range, makes rust remover in metal watch
Face is easily spread.The above analysis, when the quality of isomery alcohol ether 1308 is 5g.The rate that derusts is very fast, and viscosity is also higher.
The determination of 3.4 bleeding agent quality
Bleeding agent can penetrate into inside rusty scale, play the reaction of organic acid and rusty scale in rust remover more sufficiently, completely
Vital effect.In citric acid 100g, sulfamic acid 100g, HEDP 100g, corrosion inhibiter thiocarbamide 5g, isomery alcohol ether
1308 5g under conditions of 25 DEG C of temperature, have studied influence of the quality of bleeding agent to derusting rate and derusting rate, as a result such as table 4
It is shown:
Influence of the 4 bleeding agent isopropanol of table to derusting
As shown in Table 4: with the increase of bleeding agent quality, the rate that derusts and derusting rate are all significantly improved；Work as isomery
When 1308 mass of alcohol ether increases to 15g, the rate that derusts and derusting rate increase slowly.The most effective utilization of comprehensive resources and the minimum original of cost
Then, the quality for determining bleeding agent isomery alcohol ether 1308 is 15g.
4 conclusions
In organic acid (citric acid 100g, sulfamic acid 100g, HEDP 100g) 300g, corrosion inhibiter thiocarbamide 5g, bleeding agent is different
The rust remover prepared under conditions of propyl alcohol 15g, 1308 5g of surfactant isomery alcohol ether can derust at normal temperature, be one
The dispersion of high activity.
The efficient quick derusting of rust remover energy, it is non-ignitable not quick-fried, substrate is corroded gently, it is easy to use, it can be used to horizontal plane and apply
Work, it can also be used to vertical surface construction.
Rust remover is generated without acid mist, and the health of effective protection operator extends the service life of equipment, can be complete
Degradation, environmental pollution are small.
In addition to being derusted using immersion way, it is possible to use the forms of construction work such as spraying, brushing.
Rust remover is heated to 30-40 DEG C, and speed of derusting improves 1-2 times.
The raw material of rust remover is easy to get, and manufacture is easy, widely used, has high economic benefit, social benefit and industry
Development volue.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (2)
1. a kind of environment-friendly rust remover, it is characterised in that: by weight, including following composition: sulfamic acid 100g, citric acid
100g, isopropanol 15g, HEDP100g, thiocarbamide 5g, 1308 5g of isomery alcohol ether, add water and add to 1000g.
2. the preparation method of environment-friendly rust remover as described in claim 1, which comprises the steps of:
(1) above-mentioned material is weighed according to the ratio；
(2) above-mentioned material is added while stirring, sufficiently dissolves, stirs to transparence, is configured to 1000g deruster；Wherein, lemon
Lemon acid, sulfamic acid are used as complexant as rust remover main component in rust remover, are coordinated divalent, the trivalent constantly generated
Iron ion reduces free iron, and accelerated oxidation object is reacted with acid, achievees the purpose that quick derusting；Isopropanol plays infiltration
Effect, react main component with rusty scale more completely, sufficiently, the ferrous iron that HEDP can effectively in network and acid solution, and precipitate guarantor
Hold the transparent of acid solution；Thiocarbamide is adsorbed on the surface of steel as corrosion inhibiter, and steel and medium is isolated, reduces metal damage；Table
Face activating agent isomery alcohol ether 1308 reduces surface tension, combines corrosion inhibiter preferably with steel, and reduce derusting agent molecule
Between interaction, meanwhile, rise emulsification, washing, permeate thickening power, remove the grease of steel surface, and inhibit acid mist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285730.5A CN109234744A (en) | 2018-10-31 | 2018-10-31 | A kind of environment-friendly rust remover and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285730.5A CN109234744A (en) | 2018-10-31 | 2018-10-31 | A kind of environment-friendly rust remover and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109234744A true CN109234744A (en) | 2019-01-18 |
Family
ID=65079872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811285730.5A Pending CN109234744A (en) | 2018-10-31 | 2018-10-31 | A kind of environment-friendly rust remover and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109234744A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172547A (en) * | 2020-02-14 | 2020-05-19 | 佛山市南海区巨人化学品制造有限公司 | Organic environment-friendly rust remover and preparation method and application thereof |
| CN113215582A (en) * | 2021-05-14 | 2021-08-06 | 绿岸(天津)环保科技有限公司 | Environment-friendly metal rust remover and preparation method thereof |
| CN114250476A (en) * | 2021-11-22 | 2022-03-29 | 湖北工程学院 | Rust remover and application method thereof |
| CN114836760A (en) * | 2022-05-16 | 2022-08-02 | 大连民族大学 | Preparation method of rust remover containing graphene quantum dot corrosion inhibitor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373478A (en) * | 2010-08-20 | 2012-03-14 | 3M创新有限公司 | Rust removal composition |
| CN104152926A (en) * | 2014-08-28 | 2014-11-19 | 赵理奎 | A steel environmental rust remover |
-
2018
- 2018-10-31 CN CN201811285730.5A patent/CN109234744A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373478A (en) * | 2010-08-20 | 2012-03-14 | 3M创新有限公司 | Rust removal composition |
| CN104152926A (en) * | 2014-08-28 | 2014-11-19 | 赵理奎 | A steel environmental rust remover |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172547A (en) * | 2020-02-14 | 2020-05-19 | 佛山市南海区巨人化学品制造有限公司 | Organic environment-friendly rust remover and preparation method and application thereof |
| CN113215582A (en) * | 2021-05-14 | 2021-08-06 | 绿岸(天津)环保科技有限公司 | Environment-friendly metal rust remover and preparation method thereof |
| CN114250476A (en) * | 2021-11-22 | 2022-03-29 | 湖北工程学院 | Rust remover and application method thereof |
| CN114250476B (en) * | 2021-11-22 | 2024-04-12 | 湖北工程学院 | Rust remover and using method thereof |
| CN114836760A (en) * | 2022-05-16 | 2022-08-02 | 大连民族大学 | Preparation method of rust remover containing graphene quantum dot corrosion inhibitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109234744A (en) | A kind of environment-friendly rust remover and preparation method thereof | |
| CN106894029B (en) | A kind of aluminum alloy cleaning agent and preparation method thereof and aluminium alloy cleaning method | |
| CN105331991B (en) | A kind of acid wash passivation method of austenitic stainless steel | |
| CN105543861B (en) | A kind of new rust removing solution and preparation method thereof | |
| CN105696001B (en) | Rust-removing and-preventing agent | |
| Yuan et al. | Study of the effects of hydrogen on the pitting processes of X70 carbon steel with SECM | |
| CN106086908B (en) | A kind of copper material pickling polishing fluid and preparation method thereof and application method | |
| CN103403230A (en) | Eco-friendly high-speed pickling process for producing a low-chrome ferrite-based cold-rolled stainless steel sheet having superior surface quality | |
| CN109457259A (en) | A kind of stainless steel derusting and cleaning agent | |
| US2485529A (en) | Composition for removing scale from ferrous metal surfaces | |
| MX2011005099A (en) | Process for pickling silicon steel with an acidic pickling solution containing ferric ions. | |
| CN107299348A (en) | A kind of environment-friendly type brightening solution for stainless steel and preparation method thereof and glossing | |
| CN107034038A (en) | A kind of cleaning agent for being used to clean quartz ore | |
| CN104562054A (en) | Chemical efficient detergent as well as preparation method and using method thereof | |
| CN103422099A (en) | A cleaning agent for stainless steel and iron member composite boards and a preparation method of the cleaning agent | |
| CN108559985A (en) | A kind of copper and copper alloy bearing retainer surface cleaning activation methods | |
| CN102719839A (en) | Pickling agent for stainless steel | |
| CN103898529A (en) | Rust-removing method | |
| US20090148335A1 (en) | Process for surface treatment of metals | |
| CN105154898A (en) | Beryllium bronze oxide film organic cleaning agent | |
| Hariharan et al. | Role of copper on repassivation of stainless steel pits | |
| CN101768746B (en) | Cleaning agent special for stainless steel and preparation method and application thereof | |
| CN109112552A (en) | Remover for stainless steel surface oxide layer and preparation and use methods thereof | |
| CN103014731A (en) | Rust remover for ferrous metals | |
| CN109208011B (en) | Nitric acid fog inhibitor and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
|
| RJ01 | Rejection of invention patent application after publication |