CN111662785A - Mild stone rust remover and preparation method thereof - Google Patents
Mild stone rust remover and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
- C04B41/5315—Cleaning compositions, e.g. for removing hardened cement from ceramic tiles
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
- C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—Ethers
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/349—Organic compounds containing sulfur additionally containing nitrogen atoms, e.g. nitro, nitroso, amino, imino, nitrilo, nitrile groups containing compounds or their derivatives or thio urea
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
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Abstract
The invention discloses a mild stone rust remover and a preparation method thereof, wherein the mild stone rust remover comprises the following components in parts by weight: 40-60 parts of ammonium thioglycolate, 0.35-6 parts of pH regulator, 0.5-5 parts of ethanolamine, 0.15-1 part of penetrant, 10-30 parts of diethylene glycol monobutyl ether and 11-49 parts of water; meanwhile, the preparation method of the existing rust remover is improved, the mild stone rust remover prepared by the method can efficiently remove rust on the stone on the basis of protecting the appearance of the stone, and the rust remover has the advantages of simple production process, convenient rust removal process, convenience for industrial production and capability of effectively reducing the cost.
Description
Technical Field
The invention relates to the technical field of stone rust removal, in particular to a mild stone rust remover and a preparation method thereof.
Background
Stone has been endowed with extremely high use value and aesthetic properties due to its natural origin, and is a building material widely used in the field of finishing and decoration. However, due to the nature of stone, it is very easy to cause surface contamination of stone during manual storage and use, wherein stone rusty spots are one of the main manifestations of stone lesions. Therefore, people pay more and more attention to stone cleaning and maintenance, particularly rust removal. At present, inorganic acid or organic acid rust removers are common. The inorganic acid rust remover mainly contains hydrochloric acid or phosphoric acid and the like, removes the iron rust in an oxidation state through acid-base neutralization reaction, but easily damages the surface of the stone in the treatment process, brings dark spots or forms corrosion, and seriously influences the finish degree of the stone. Organic acid rust removers such as oxalic acid, citric acid and the like can remove part of rust only by removing rust for many times or heating, and although the rust removers have a certain rust removal effect, the rust removal is not thorough, and the rust removal process is complex.
Chinese patents CN03112059.8 and CN201410341314.8 both disclose a rust remover for stone materials, which contains acetic acid, tartaric acid and other organic acids, and although it can achieve a certain rust removing effect, the rust remover can cause corrosion of stone surfaces, and is especially not suitable for non-silicate stone materials. Chinese patent CN201510508953.3 discloses a preparation method of an environment-friendly stone rust remover, which comprises the following steps: according to the weight parts, placing hydrochloric acid, an emulsifier, triethanolamine, zinc stearate and thiourea dioxide in a stirrer, and stirring at the temperature of 40-60 ℃; adding hexamethylenetetramine, ammonium molybdate, benzotriazole, isobornyl acrylate, dibutyl phthalate and ethylenediamine tetramethylene phosphonic acid, heating to 60-80 ℃ within 3-6 min, carrying out ultrasonic treatment for 10-15 min, cooling to 40-60 ℃, and continuing ultrasonic treatment for 10-15 min; then placing the mixture into a stirrer, and stirring the mixture at normal temperature to obtain the product; the stone rust remover has various components, contains hydrochloric acid in materials, is not suitable for rust removal of non-silicate stones, needs treatment procedures such as heating, cooling, ultrasonic treatment and the like in the preparation process, has high production cost, and is not beneficial to industrial production. In addition, Chinese patent CN201811258187.X discloses a preparation method of an environment-friendly stone rust remover, which comprises the steps of firstly adding a component A into 100 parts of deionized water, then adding a component B into 100 parts of hydrogen peroxide, mixing the component A and the component B, placing the mixture into a stirrer, and stirring the mixture for 1 hour at 50 ℃ to obtain the environment-friendly stone rust remover which is neutral as a whole; the environment-friendly stone rust remover has the advantages that the components are various, the preparation processes such as heating and cooling are needed, the preparation process is complex, the defects of production convenience, safety and economy are caused, the environment-friendly stone rust remover contains a film forming agent, although the environment-friendly stone rust remover is corrosion-resistant, the breathing and air permeability of the stone are hindered, and the risk of stone pathological changes exists. Therefore, especially for the stones containing weak acid salts, such as marble, limestone and the like, the existing stone rust remover is easy to cause irreversible damage to the surface of the stone due to corrosion in the rust removing process, and has the disadvantages of complex preparation process and high production cost.
Disclosure of Invention
The invention aims to provide a mild stone rust remover and improve the existing rust remover preparation method, the mild stone rust remover prepared by the method can efficiently remove rust on stone on the basis of protecting the stone appearance, and the rust remover has the advantages of simple production process, convenient rust removal process, convenience for industrial production and capability of effectively reducing the cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the mild stone rust remover comprises the following components in parts by weight:
preferably, the pH regulator is one or a mixture of two or more of ammonia water, sodium hydroxide, potassium hydroxide and sodium carbonate.
Preferably, the ethanolamine is one or a mixture of two or more of monoethanolamine, diethanolamine or triethanolamine.
Preferably, the penetrating agent is one or a mixture of more than two of sodium dodecyl sulfate, penetrating agent JFC, sodium dodecyl benzene sulfonate and isomeric tridecanol ether.
Preferably, the composition comprises the following components in parts by weight: 45-55 parts of ammonium thioglycolate, 1.5-5 parts of pH regulator, 2.5-5 parts of ethanolamine, 0.3-0.5 part of penetrant, 20-25 parts of diethylene glycol monobutyl ether and 15-34 parts of water.
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 11-49 parts of water, 10-30 parts of diethylene glycol monobutyl ether, 0.5-5 parts of ethanolamine and 0.15-1 part of penetrant by weight into a stirrer at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
and S2, sequentially adding 40-60 parts of ammonium thioglycolate and 0.35-6 parts of pH regulator into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover.
After the technical scheme is adopted, compared with the background technology, the invention has the following beneficial effects:
1. the mild stone rust remover prepared by the invention can efficiently remove rust on stone on the basis of protecting the appearance of the stone, and has the advantages of simple production process, convenient rust removal process, convenience for industrial production and capability of effectively reducing cost.
2. The diethylene glycol monobutyl ether can effectively remove oil stains on the surface of the stone material and can sweep obstacles for efficient rust removal; the penetrating agent can reduce the lateral diffusion of the rust remover on the contact interface, promote the rust remover to rapidly enter a rust layer and assist in breaking down surface and deep rust spots; the pH value of the rust remover can be adjusted to be alkaline through the pH regulator, so that the product can exert the maximum rust removing effect, and the irreversible damage of acidic substances to the stone can be avoided.
3. The rust remover can effectively exert the rust removing effect, has strong rust removing capability and high rust removing speed, is mild in product and does not damage stones; meanwhile, the rust remover also has the oil removing capability, and can effectively remove rust spots without removing oil stains aiming at rust spots coated with shallow oil stains; in addition, thanks to the perfect formula, free rust stains are removed after the stone is subjected to rust removal, and part of residual rust is specifically combined and converted by the product, so that the stone has the function of preventing rust return.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 19.85 parts of water, 30 parts of diethylene glycol monobutyl ether, 4 parts of monoethanolamine and 0.15 part of sodium dodecyl sulfate into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 40 parts of ammonium thioglycolate and 6 parts of ammonia water into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Example 2
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 21.7 parts of water, 25 parts of diethylene glycol monobutyl ether, 3 parts of diethanolamine and 0.3 part of penetrant JFC into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 45 parts of ammonium thioglycolate and 5 parts of ammonia water into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Example 3
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 15.2 parts of water, 25 parts of diethylene glycol monobutyl ether, 5 parts of monoethanolamine and 0.3 part of sodium dodecyl sulfate into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 50 parts of ammonium thioglycolate and 4.5 parts of ammonia water into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Example 4
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 20.5 parts of water, 20 parts of diethylene glycol monobutyl ether, 2 parts of monoethanolamine, 0.5 part of diethanolamine, 0.2 part of isotridecyl alcohol ether and 0.3 part of sodium dodecyl benzene sulfonate into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 55 parts of ammonium thioglycolate, 0.2 part of sodium hydroxide and 1.3 parts of sodium carbonate into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Example 5
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 28.15 parts of water, 10 parts of diethylene glycol monobutyl ether, 0.5 part of triethanolamine and 1 part of sodium dodecyl sulfate into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 60 parts of ammonium thioglycolate and 0.35 part of potassium hydroxide into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Comparative example 1
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 59.85 parts of water, 30 parts of diethylene glycol monobutyl ether, 4 parts of monoethanolamine and 0.15 part of sodium dodecyl sulfate into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, adding 6 parts of ammonia water into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Comparative example 2
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 32 parts by weight of water, 15 parts by weight of diethylene glycol monobutyl ether and 3 parts by weight of monoethanolamine into a stirrer at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 45 parts of ammonium thioglycolate and 5 parts of ammonia water into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Comparative example 3
A preparation method of a mild stone rust remover comprises the following steps:
s1, sequentially adding 40.2 parts of water, 5 parts of monoethanolamine and 0.3 part of sodium dodecyl sulfate into a stirrer in parts by weight at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
s2, sequentially adding 50 parts of ammonium thioglycolate and 4.5 parts of ammonia water into the primary mixed raw material, stirring for the second time, and uniformly stirring for the second time to obtain the alkaline mild stone rust remover;
the mild stone rust remover is directly acted on places needing rust removal, the conditions of the rust removal time, the rust removal performance, the corrosivity and the residual oil rust removal performance of the mild stone rust remover are tested, and the test results are shown in table 1.
Table 1 test results of mild stone rust remover prepared in examples 1-5
TABLE 2 test results of the mild stone rust remover prepared in comparative examples 1-3
As can be seen from the test results of tables 1 and 2,
the mild stone rust remover prepared in the examples 1-5 has good rust removing capability on stone rust spots, has high rust removing efficiency, does not corrode stones, and can remove oil stains. Comparative example 1 hardly had an effect on rust stains of stone materials within a prescribed time, and failed to bring about a beneficial effect even if the rust removal time is prolonged; in comparative example 2, due to the lack of the penetrant, the rust removal time is prolonged, and the rust removal efficiency is reduced; for the stone rust spots containing oil stains, the comparative example 3 can not effectively remove the oil stains and the stone rust spots within the specified time. Therefore, the materials of the invention are not simply stacked, but are used as an organic whole to achieve the aim of efficiently and quickly removing rust spots of the stone, particularly, the invention has no corrosion effect on acid-sensitive stones (such as marble, limestone and the like), can still keep the luster of the stone after rust removal, and the production process and the rust removal process are convenient and fast, and are suitable for industrial popularization.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The mild stone rust remover is characterized by comprising the following components in parts by weight:
2. a mild rust remover for stone as claimed in claim 1, wherein: the pH regulator is one or a mixture of more than two of ammonia water, sodium hydroxide, potassium hydroxide and sodium carbonate.
3. A mild rust remover for stone as claimed in claim 1, wherein: the ethanolamine is one or a mixture of more than two of monoethanolamine, diethanolamine or triethanolamine.
4. A mild rust remover for stone as claimed in claim 1, wherein: the penetrating agent is one or a mixture of more than two of sodium dodecyl sulfate, penetrating agent JFC, sodium dodecyl benzene sulfonate and isomeric tridecanol ether.
5. The mild stone rust remover as claimed in claim 1, which comprises the following components in parts by weight: 45-55 parts of ammonium thioglycolate, 1.5-5 parts of pH regulator, 2.5-5 parts of ethanolamine, 0.3-0.5 part of penetrant, 20-25 parts of diethylene glycol monobutyl ether and 15-34 parts of water.
6. A method for preparing a mild stone rust remover as claimed in any one of claims 1 to 5, comprising the steps of:
s1, sequentially adding 11-49 parts of water, 10-30 parts of diethylene glycol monobutyl ether, 0.35-5 parts of ethanolamine and 0.15-1 part of penetrant by weight into a stirrer at normal temperature, stirring for the first time, and uniformly stirring for the first time to obtain a primary mixed raw material;
and S2, sequentially adding 40-60 parts of ammonium thioglycolate and 0.35-6 parts of pH regulator into the primary mixed raw material, and uniformly stirring for the second time to obtain the mild stone rust remover.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113373008A (en) * | 2021-06-02 | 2021-09-10 | 佛山市雅伦高科石业有限公司 | M20 top-speed rust remover |
| CN113860914A (en) * | 2021-09-16 | 2021-12-31 | 湖北文理学院 | Soak solution for removing white cobblestone rust yellow spots, preparation method of soak solution and method for removing white cobblestone rust yellow spots |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113373008A (en) * | 2021-06-02 | 2021-09-10 | 佛山市雅伦高科石业有限公司 | M20 top-speed rust remover |
| CN113860914A (en) * | 2021-09-16 | 2021-12-31 | 湖北文理学院 | Soak solution for removing white cobblestone rust yellow spots, preparation method of soak solution and method for removing white cobblestone rust yellow spots |
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Application publication date: 20200915 |