CN111321417A - Rust remover and preparation method and application thereof - Google Patents
Rust remover and preparation method and application thereof Download PDFInfo
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- CN111321417A CN111321417A CN202010151148.0A CN202010151148A CN111321417A CN 111321417 A CN111321417 A CN 111321417A CN 202010151148 A CN202010151148 A CN 202010151148A CN 111321417 A CN111321417 A CN 111321417A
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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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
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Abstract
The invention belongs to the technical field of instrument rust removal, and discloses a rust remover and a preparation method and application thereof, wherein the rust remover consists of 6% of sodium nitrite, 1% of fatty alcohol-polyoxyethylene ether, 1.5% of hydrochloric acid, 5% of citric acid, 1% of oxalic acid, 0.1% of carbazone, 10% of ethanol, 0.05% of essence, and the balance of purified deionized water in parts by weight. The preparation method of the rust remover comprises the following steps: preparing raw materials according to parts by weight, dissolving sodium nitrite, fatty alcohol-polyoxyethylene ether, hydrochloric acid, citric acid, oxalic acid, kasong, essence and ethanol in purified deionized water, and stirring to obtain a homogeneous solution; adding purified ionized water to full volume, and performing constant volume and aging; inspecting the obtained intermediate product; if the product is qualified, filling and sealing the product by using disinfectant plastic bottles and heads, and externally packaging the product; and (5) inspecting the finished product, and storing the qualified product in a finished product warehouse. The rust remover has better rust removing effect on precision instruments such as medical instruments and the like.
Description
Technical Field
The invention belongs to the technical field of instrument rust removal, and particularly relates to a rust remover and a preparation method and application thereof.
Background
With the continuous development of medical technology, the development of high and new technologies such as artificial joint replacement, organ transplantation, valve replacement and the like is rapid, and the requirements on cleaning, disinfection, lubrication, maintenance, packaging, sterilization and the like of surgical instruments are higher due to the wide application of expensive and complex precise instruments. The national requirements on hospital disinfection supply centers are continuously increased, the lubricating and maintaining effects of surgical instruments actually influence the surgical quality of doctors, and are related to the personal safety of patients. The surgical operation instruments are various in types, expensive in price and different in shape, maintenance work needs to be done, and the service life of the instruments is prolonged. The majority of medical instruments are 'stainless steel products' plated with chromium on the outside of iron, however, the 'stainless steel' is not absolutely stainless, and the instruments are easy to rust after being used for many times, so that the instruments can be seriously scrapped or the patients can be infected. The main factors for rusting the instruments are as follows: 1. the chromium layer plated outside the apparatus material is damaged; 2. the instrument is not thoroughly cleaned, blood or organic matters are polluted, and after the chromium layer is slowly corroded, the damage is gradually increased.
The components of the rust remover for the medical instruments commonly sold on the market at present are mostly inorganic acid or organic acid, and the rust remover has various characteristics of acid cleaning and rust removal. The hydrochloric acid is slow to dissolve metal matrixes such as steel and the like at normal temperature, over-corrosion and serious hydrogen embrittlement are not easy to occur, surface residues are few, but volatility is high, corrosivity is strong during heating, and the environment is polluted; the nitric acid reacts violently, but residues after rust removal are more, the volatility is strong, harmful gases are released by the reaction with metals, and the operation risk is larger; the sulfuric acid rust removal needs heating, the working procedures are increased, and the surface residues are more, so that the substrate is easily over-corroded, and the hydrogen embrittlement phenomenon is caused; oxalic acid is a common metal acid-washing organic acid, slowly corrodes steel at normal temperature, and generates a protective film by heating, but the rust removal rate is slow. Therefore, the existing common rust remover has the advantages that the inorganic acid rust removal is quick, but the acidity is too strong, and the safety is lower; the organic acid has slow rust removal, but is safe and harmless, has no pollution, and has unsatisfactory rust removal effect of the current commercial rust remover.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a rust remover and a preparation method and application thereof.
The rust remover is prepared from 6% of sodium nitrite, 1% of fatty alcohol-polyoxyethylene ether, 1.5% of hydrochloric acid, 5% of citric acid, 1% of oxalic acid, 10% of ethanol, 0.1% of cason, 0.05% of essence and the balance of purified deionized water in parts by weight, wherein the deionized water is supplemented to 100%.
Further, the purity of sodium nitrite is 99%, the purity of fatty alcohol-polyoxyethylene ether is 99%, the purity of hydrochloric acid is 35%, the purity of citric acid is 99%, the purity of oxalic acid is 99%, the purity of kasong is 10%, the purity of ethanol is 95%, and the purity of essence is 99%.
Further, every 1000kg of the rust remover comprises 60kg of sodium nitrite with the purity of 99%, 10kg of fatty alcohol-polyoxyethylene ether with the purity of 99%, 15kg of hydrochloric acid with the purity of 35%, 50kg of citric acid with the purity of 99%, 10kg of oxalic acid with the purity of 99%, 1kg of kason with the purity of 10%, 100kg of ethanol with the purity of 95%, 0.5kg of essence with the purity of 99%, and the balance of purified deionized water, and the total amount is 1000 kg. The invention also aims to provide a preparation method of the rust remover, which comprises the following steps:
preparing raw materials in parts by weight: 6 percent of sodium nitrite with the purity of 99 percent, 1 percent of fatty alcohol-polyoxyethylene ether with the purity of 99 percent, 1.5 percent of hydrochloric acid with the purity of 35 percent, 5 percent of citric acid with the purity of 99 percent, 1 percent of oxalic acid with the purity of 99 percent, 10 percent of ethanol with the purity of 95 percent, 0.1 percent of kason with the purity of 10 percent, 0.05 percent of essence with the purity of 99 percent, and the balance of purified deionized water;
dissolving sodium nitrite, fatty alcohol-polyoxyethylene ether, hydrochloric acid, citric acid, oxalic acid, ethanol, kasong and essence in purified deionized water, and stirring to obtain a homogeneous solution;
adding purified ionic water to full volume, and performing constant volume and aging;
step four, inspecting the obtained intermediate product;
step five, if the product is qualified, filling and sealing the product by using disinfectant plastic bottles and heads, and externally packaging the product;
and step six, inspecting the finished products, and storing the qualified products in a finished product warehouse.
Another object of the present invention is to provide an iron-chromium plated stainless steel product coated with the rust remover.
The rust remover has better rust removing effect on precision instruments such as medical instruments and the like. The rust remover has the characteristics of moderate acidity, simple and safe operation, no toxicity, no pollution, few rust removing procedures, capability of simultaneously finishing rust removal and decontamination, moderate rust removing speed, small using amount, long storage time after rust removal, acid and alkali treatment on the surface of an apparatus and no corrosion on the surface of the apparatus, and is incomparable with the existing commercially available rust remover.
The invention aims to improve the unsatisfactory derusting effect of the common derusters sold in the market at present, reduce the operation procedures during derusting, improve the safety of personnel use, ensure the derusting rate and reduce pollution.
The invention is realized by that the main components comprise sodium citrate, fatty alcohol-polyoxyethylene ether, hydrochloric acid, citric acid, oxalic acid, kasong, ethanol and essence, it is characterized in that citric acid and oxalic acid belong to organic acids, the acidity of the citric acid and the oxalic acid is stronger in the organic acids, but is weaker than that of inorganic acids, the acidity is moderate on the whole, the property is mild, the toxicity is low, good ferric oxide dissolving capacity, strong complexing capacity to metal ions, low metal corrosion rate, and metals such as copper, brass, aluminum, chromium, nickel and the like can resist the corrosion of citric acid, the over-corrosion phenomenon is not easy to cause, a protective film can be formed after rust removal, the interior of the device is protected from acid-base corrosion, the operation is simple and safe, the rust removing quality is good, and after a small amount of hydrochloric acid is added, the inorganic acid and the organic acid are combined, so that the integral rust removing rate of the rust remover is balanced, and the defect of single rust removal of the inorganic acid and the organic acid is overcome; the sodium nitrite is mainly used as a corrosion inhibitor and reacts with metal ions in the anode area of the metal surface to generate oxide or hydroxide oxide film to cover the anode and form a protective film, so that the metal is inhibited from dissolving into water; the fatty alcohol-polyoxyethylene ether is used as a surfactant and mainly has the main function of forming a covering film with the metal surface, so that rust removing components can more uniformly permeate into the surface of an apparatus, and meanwhile, the surfactant has the characteristics of improving the affinity of oil stains and water, providing the dirt-removing capacity, being insensitive to hard water, small in foam and the like; the carbazone is mainly used as a bacteriostatic agent, has certain bactericidal capacity and enables the surface of an apparatus to have bacteriostatic properties after rust removal; the essence has the main function of harmonizing and masking the bad smell during ethanol or acid washing; the main function of the ethanol is to uniformly disperse all components in the system, so that the system is homogeneous, and the phenomenon of poor rust removal effect caused by over-high or over-low local acidity is avoided; water is the solvent.
Citric acid, oxalic acid and a small amount of hydrochloric acid are compounded for use, so that the over-corrosion phenomenon of the hydrochloric acid can be avoided, the volatilization of the hydrochloric acid is reduced, the safety is enhanced, the rust removal rate is accelerated, and the rust removal rate is higher than that of a single inorganic acid; the sodium nitrite provides good corrosion inhibition, so that the service life of metal equipment can be kept after rust removal; the fatty alcohol-polyoxyethylene ether provides excellent decontamination capability and metal surface permeation film coating capability, and oil removal and decontamination are not needed before rust removal of an apparatus, so that rust removal and decontamination can be completed simultaneously; the kasong provides bactericidal and bacteriostatic ability.
The rust remover disclosed by the invention is moderate in acidity, simple and safe to operate, non-toxic and pollution-free, few in rust removing process, capable of simultaneously finishing rust removal and decontamination, moderate in rust removing speed, small in using amount, long in storage time after rust removal, capable of treating the surface of an apparatus with acid and alkali, free of corrosion on the surface of the apparatus, low in total volatile organic matters, and incomparable with the existing commercially available rust remover.
Drawings
FIG. 1 is a flow chart of a method for preparing a rust remover provided by an embodiment of the present invention.
FIG. 2 is a flow chart of a production process of the rust remover provided by the embodiment of the invention.
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.
The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings.
The rust remover provided by the embodiment of the invention consists of 6% of sodium nitrite with the purity of 99%, 1% of fatty alcohol-polyoxyethylene ether with the purity of 99%, 1.5% of hydrochloric acid with the purity of 35%, 5% of citric acid with the purity of 99%, 1% of oxalic acid with the purity of 99%, 10% of ethanol with the purity of 95%, 0.1% of kasong with the purity of 10%, 0.05% of essence with the purity of 99% and the balance of purified deionized water in parts by weight, wherein the deionized water is supplemented to 100%.
Every 1000kg of the rust remover provided by the embodiment of the invention comprises 60kg of sodium nitrite with the purity of 99%, 10kg of fatty alcohol-polyoxyethylene ether with the purity of 99%, 15kg of hydrochloric acid with the purity of 35%, 50kg of citric acid with the purity of 99%, 10kg of oxalic acid with the purity of 99%, 1kg of kasong with the purity of 10%, 100kg of ethanol with the purity of 95%, 0.5kg of essence with the purity of 99%, and the balance of purified deionized water, and the total amount is 1000 kg.
As shown in fig. 1, a method for preparing a rust remover provided by an embodiment of the present invention includes the following steps:
s101: preparing raw materials in parts by weight: 6 percent of sodium nitrite with the purity of 99 percent, 1 percent of fatty alcohol-polyoxyethylene ether with the purity of 99 percent, 1.5 percent of hydrochloric acid with the purity of 35 percent, 5 percent of citric acid with the purity of 99 percent, 1 percent of oxalic acid with the purity of 99 percent, 10 percent of ethanol with the purity of 95 percent, 0.1 percent of kason with the purity of 10 percent, 0.05 percent of essence with the purity of 99 percent, and the balance of purified deionized water;
s102: dissolving sodium nitrite, fatty alcohol-polyoxyethylene ether, hydrochloric acid, citric acid, oxalic acid, ethanol, kasong and essence in purified deionized water, and stirring to obtain a homogeneous solution;
s103: adding purified deionized water to full volume, and performing constant volume and aging;
s104: inspecting the obtained intermediate product;
s105: if the product is qualified, filling and sealing the product by using disinfectant plastic bottles and heads, and externally packaging the product;
s106: and (5) inspecting the finished product, and storing the qualified product in a finished product warehouse.
The technical solution of the invention is further described below with reference to specific embodiments.
Example (b):
the prescription of 1000kg of the product comprises:
the rust remover prepared by the invention is compared with the rust remover on the market as follows, the rust removal is carried out on the surface of the same medical apparatus, and the specific data is shown in the following table;
compared with the rust remover on the market, the rust remover has the advantages of less rust removal under the same conditions, less consumption, long storage time after rust removal, no corrosion of acid and alkali after rust removal and low total volatile organic matters.
The rust remover disclosed by the invention is moderate in acidity, simple and safe to operate, non-toxic and pollution-free, few in rust removing process, capable of simultaneously finishing rust removal and decontamination, moderate in rust removing speed, small in using amount, long in storage time after rust removal, capable of treating the surface of an apparatus with acid and alkali, free of corrosion on the surface of the apparatus, low in total volatile organic matters, and incomparable with the existing commercially available rust remover.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The rust remover is characterized by comprising 6% of sodium nitrite, 1% of fatty alcohol-polyoxyethylene ether, 1.5% of hydrochloric acid, 5% of citric acid, 1% of oxalic acid, 0.1% of karson, 10% of ethanol, 0.05% of essence and the balance of purified deionized water in parts by weight, wherein the deionized water is supplemented to 100%.
2. A rust remover as claimed in claim 1, wherein the purity of sodium nitrite is 99%, the purity of fatty alcohol-polyoxyethylene ether is 99%, the purity of hydrochloric acid is 35%, the purity of citric acid is 99%, the purity of oxalic acid is 99%, the purity of carbazone is 10%, the purity of ethanol is 95%, and the purity of essence is 99%.
3. A rust remover as claimed in claim 1, wherein the rust remover comprises per 1000kg of 60kg of 99% pure sodium nitrite, 10kg of 99% pure fatty alcohol-polyoxyethylene ether, 15kg of 35% pure hydrochloric acid, 50kg of 99% pure citric acid, 10kg of 99% pure oxalic acid, 1kg of 10% pure karson, 100kg of 95% pure ethanol, 0.5kg of 99% pure essence, and the balance of purified deionized water to a total amount of 1000 kg.
4. A method for preparing the rust remover as claimed in claim 1, which comprises the steps of:
preparing raw materials in parts by weight: 6 percent of sodium nitrite with the purity of 99 percent, 1 percent of fatty alcohol-polyoxyethylene ether with the purity of 99 percent, 1.5 percent of hydrochloric acid with the purity of 35 percent, 5 percent of citric acid with the purity of 99 percent, 1 percent of oxalic acid with the purity of 99 percent, 10 percent of ethanol with the purity of 95 percent, 0.1 percent of kason with the purity of 10 percent, 0.05 percent of essence with the purity of 99 percent, and the balance of purified deionized water;
dissolving sodium nitrite, fatty alcohol-polyoxyethylene ether, hydrochloric acid, citric acid, oxalic acid, kasong, ethanol and essence in purified deionized water, and stirring to obtain a homogeneous solution;
adding purified ionic water to full volume, and performing constant volume and aging;
step four, inspecting the obtained intermediate product;
step five, if the product is qualified, filling and sealing the product by using disinfectant plastic bottles and heads, and externally packaging the product;
and step six, inspecting the finished products, and storing the qualified products in a finished product warehouse.
5. An iron-chromium plated stainless steel product coated with the rust remover as claimed in any one of claims 1 to 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010151148.0A CN111321417A (en) | 2020-03-06 | 2020-03-06 | Rust remover and preparation method and application thereof |
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| CN202010151148.0A CN111321417A (en) | 2020-03-06 | 2020-03-06 | Rust remover and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290488A (en) * | 2021-06-02 | 2021-08-24 | 清远市进田企业有限公司 | Electrolytic copper high-precision mirror polishing method |
| CN114226339A (en) * | 2021-12-10 | 2022-03-25 | 安徽中环环保科技股份有限公司 | Rubbish leachate system scale removal integrated device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103590056A (en) * | 2012-08-14 | 2014-02-19 | 苏州一方金属表面处理科技有限公司 | Cold-rolled sheet detergent |
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2020
- 2020-03-06 CN CN202010151148.0A patent/CN111321417A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590056A (en) * | 2012-08-14 | 2014-02-19 | 苏州一方金属表面处理科技有限公司 | Cold-rolled sheet detergent |
Non-Patent Citations (1)
| Title |
|---|
| 唐育民: "《合成洗涤剂及其应用》", 31 May 2006, 中国纺织出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290488A (en) * | 2021-06-02 | 2021-08-24 | 清远市进田企业有限公司 | Electrolytic copper high-precision mirror polishing method |
| CN114226339A (en) * | 2021-12-10 | 2022-03-25 | 安徽中环环保科技股份有限公司 | Rubbish leachate system scale removal integrated device |
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Application publication date: 20200623 |