CN109097786A - A kind of preparation method of metal surface residual oil cleaning agent - Google Patents
A kind of preparation method of metal surface residual oil cleaning agent Download PDFInfo
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- CN109097786A CN109097786A CN201811135119.4A CN201811135119A CN109097786A CN 109097786 A CN109097786 A CN 109097786A CN 201811135119 A CN201811135119 A CN 201811135119A CN 109097786 A CN109097786 A CN 109097786A
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- metal surface
- residual oil
- cleaning agent
- preparation
- surface residual
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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
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
- C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
Abstract
The present invention relates to a kind of preparation methods of metal surface residual oil cleaning agent, belong to metal cleaner technical field.The present invention is blended using nonionic surfactant and cationic surfactant, in conjunction with builder, corrosion inhibiter, defoaming agent and additive, prepare metal surface residual oil cleaning agent, nonionic surfactant has extensive soda acid adaptability and excellent greasy dirt cleaning performance, cationic surfactant uses quaternary ammonium salt cationic surfactant, monomolecular adsorbed film is formed in metal surface in low concentration, and then forms bimolecular adsorbed film at high concentrations；Additive in the present invention is the mixed liquor that hexamethylenetetramine and mass fraction are 0.5% hydrogen chloride solution, and the cleaning agent of preparation is in neutrality, is not phosphorous, does not have without heavy metal and acid mist evolution；Will not the irritating effect of central nervous system to human body, influence human health, clean the fast speed of metal surface residual oil, also there is good corrosion proof function.
Description
Technical field
The present invention relates to a kind of preparation methods of metal surface residual oil cleaning agent, belong to metal cleaner technical field.
Background technique
Currently, in actual production, metal equipment and pipeline need periodically to remove greasy dirt.Container, heat exchange in oil refining apparatus
Even more often accumulate the substances such as a large amount of residual oil, slurry oil, greasy filth, dust in the surface of the parts such as device, pipeline, deposition tower.These dirts
Keep the normal work of device impacted, increases the risk of construction, so device, which is periodically removed contamination and maintained, can just keep
They run well.Fouling of heat exchangers is currently a common problem in refinery's atmospheric and vacuum distillation unit, and fouling causes to exchange heat
Final temperature reduces, and wastes fuel, increases operation difficulty.
In atmospheric and vacuum distillation unit in refinery, the potential temperature of residual oil is high and thermal capacity is big, so usually that it is repeatedly and former
Oil heat exchange recovers energy.Containing more condensed-nuclei aromatics, non-hydrocarbons, transition metal etc. in residual oil, in the bottom of heat exchanger
It is readily formed dirty layer.The formation of dirty layer often causes heat transfer coefficient to reduce, flow resistance increases, and causes energy loss, makes
Economy and environmental benefit are impaired.Currently, technical staff both domestic and external is in the method for actively researching and solving this problem.
Metal cleaner industry achieves faster development in recent years, many kinds of, but solid metallic cleaning agent dissolubility
Poor, room temperature cleaning effect is undesirable, need to increase temperature carry out washing and cleaning operation, and this kind of metal cleaner often alkalinity compared with
By force, it is easy that metal surface is caused to damage.There are many water base metal cleaning agents to come out at present, but in cleaning temperature, anticorrosion, anti-
Rust, high-efficiency environment friendly etc., which still have, much needs the problem of improving, and can not substitute solvent metal cleaner completely, actually answer
Still there is larger limitation in.Modern increasingly has environmental consciousness, and environmentally friendly industrial preparation is just able to satisfy future
Requirement just has market potential.
Obviously, a kind of surfactant is developed as main wash ingredient, adds builder, corrosion inhibiter, defoaming agent etc.
Ingredient can be suitably used for room temperature cleaning, efficient, low bubble, safe, environmentally protective, low-cost water base metal cleaning agent are very
It is necessary.This novel detergent is all of great practical significance in environmental protection and economically.
Residual oil belongs to oily soil, the cleaning to oily soil, and mostly past is clear using kerosene, gasoline, ether equal solvent type
Lotion.Although the cleaning effect using leaning solvent is also fine, these organic solvents are often accompanied by volatile, inflammable, easy
The properties such as quick-fried, safety are lower；They also have certain stimulation to the central nervous system of human body, influence human health.
Moreover, leaning solvent is highly detrimental to environmental protection, being easy to cause metal, there is a situation where get rusty.
Using surfactant as the aqua type cleaning agent of main wash ingredient, strong, lotion non-foam, corruption with dirt-removing power
Corrosion is small, with water generation oil, rust-preventing characteristic is good, save the energy, to non-hazardous, low in the pollution of the environment, the nonflammable safety of the health of operator,
The good characteristics such as the cost of cleaning is low, are rapidly developed in China in recent ten years, become the main hair of metal cleaning industry
Open up direction.Water base metal cleaning agent containing surfactant also has compared with organic solvent and alkaline cleaning fluid to be applicable to
High-pressure metal cleaning, the features such as capable of using at normal temperature, and be suitable for various metals material.
Summary of the invention
The technical problems to be solved by the invention: it is unfavorable for environmental protection for existing leaning solvent, is easy to cause metal
The problem of getting rusty provides a kind of preparation method of metal surface residual oil cleaning agent.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
It is that 0.5% hydrogen chloride solution is uniformly mixed by hexamethylenetetramine and mass fraction, obtains additive, according to parts by weight, point
Also known as take 4~6 portions of nonionic surfactants, 20~30 parts of cationic surfactants, 10~20 parts of additives, 1~10 part
Corrosion inhibiter, 1~5 part of builder, 0.2~0.5 part of defoaming agent, 20~30 parts of deionized waters, 1~2 part of pH adjusting agent, by builder
Mixed with deionized water, stirred evenly at being 40~50 DEG C in temperature, obtain mixed liquor, be added nonionic surfactant and sun from
Sub- surfactant, ultrasound and stir process, obtain precursor liquid, and additive, corrosion inhibiter and defoaming agent, stir process is added and is used in combination
PH adjusting agent regulation system pH value is to get metal surface residual oil cleaning agent.
The hexamethylenetetramine and mass fraction is 0.5% hydrogen chloride solution, 4: 1 mixing in molar ratio.
The nonionic surfactant is non-ion fluorin carbon surface active agent.
The cationic surfactant is quaternary ammonium salt cationic surfactant.
The corrosion inhibiter is one of sodium benzoate, triethanolamine, benzotriazole, triethanolamine oleate.
The builder is the mixing of sodium carbonate, sodium bicarbonate and metasilicate pentahydrate sodium in mass ratio 3: 2: 6.
The ultrasound and stir process is 3~5min of ultrasonic disperse in the case where power is 300~400W, and is 60 in revolving speed
5~10min is stirred under~100r/min.
The stir process is to continue 1~2h of stirring in the case where revolving speed is 100~120r/min.
The pH adjusting agent is that mass fraction is 0.5% hydrogen chloride solution, and adjusting pH value is 6.0~7.0.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention is blended using nonionic surfactant and cationic surfactant, in conjunction with builder, corrosion inhibiter, is disappeared
Infusion and additive, prepare metal surface residual oil cleaning agent, nonionic surfactant have extensive soda acid adaptability and
Excellent greasy dirt cleaning performance, cationic surfactant use quaternary ammonium salt cationic surfactant, in low concentration
Metal surface forms monomolecular adsorbed film, and then forms bimolecular adsorbed film at high concentrations；
(2) additive in the present invention is the mixed liquor that hexamethylenetetramine and mass fraction are 0.5% hydrogen chloride solution, six times
Amido there are four containing in tetramine molecule, solution alkaline is stronger, and the ability in conjunction with hydrogen chloride is also relatively strong, so that each amido
Exist when being combined with hydrogen chloride with hydrogen bond formation；Hydrochloride aqueous solution itself is good cleaning agent, and cleaning speed is fast, by chlorination
Hydrogen and organic amine molecule combine, and intermolecular is using hydrogen bond action, and the hydrogen bond is more stable at normal temperature, hydrogen chloride and organic amine
Compound molecule will not volatilize, and neutrality is presented in aqueous solution, and in a heated condition, the hydrolysis which will be slow, destroying hydrogen bond will
The chlorination hydrogen molecule that intramolecular combines, which is discharged into solution, forms weak acid environment, so that the cleaning agent of preparation is in neutrality, is free of
Phosphorus, without heavy metal and do not have acid mist evolution；Will not the irritating effect of central nervous system to human body, it is strong to influence human body
Health cleans the fast speed of metal surface residual oil, also has good corrosion proof function.
Specific embodiment
Hexamethylenetetramine and mass fraction are that 0.5% hydrogen chloride solution is uniformly mixed by 4: 1 in molar ratio, obtain additive,
According to parts by weight, 4~6 portions of nonionic surfactants, 20~30 parts of cationic surfactants, 10~20 parts are weighed respectively
Additive, 1~10 part of corrosion inhibiter, 1~5 part of builder, 0.2~0.5 part of defoaming agent, 20~30 parts of deionized waters, 1~2 part of pH
Regulator mixes builder and deionized water, stirs evenly at being 40~50 DEG C in temperature, obtains mixed liquor, nonionic is added
Surfactant and cationic surfactant, 3~5min of ultrasonic disperse in the case where power is 300~400W, and be 60 in revolving speed
Stir 5~10min under~100r/min, obtain precursor liquid, additive, corrosion inhibiter and defoaming agent is added, revolving speed be 100~
Continue 1~2h of stirring under 120r/min, and is 6.0~7.0 clear to get metal surface residual oil with pH adjusting agent regulation system pH value
Lotion.
Example 1
Hexamethylenetetramine and mass fraction are that 0.5% hydrogen chloride solution is uniformly mixed by 4: 1 in molar ratio, additive are obtained, by weight
Number meter is measured, weighs 4 portions of nonionic surfactants, 20 parts of cationic surfactants, 10 parts of additives, 1 part of inhibition respectively
Agent, 1 part of builder, 0.2 part of defoaming agent, 20 parts of deionized waters, 1 part of pH adjusting agent mix builder and deionized water, in temperature
Degree is to stir evenly at 40 DEG C, obtains mixed liquor, and nonionic surfactant and cationic surfactant is added, is in power
Ultrasonic disperse 3min under 300W, and 5min is stirred in the case where revolving speed is 60r/min, precursor liquid is obtained, additive, corrosion inhibiter is added and disappears
Infusion continues to stir 1h in the case where revolving speed is 100r/min, and is 6.0 to get metal surface with pH adjusting agent regulation system pH value
Residual oil cleaning agent.
Example 2
Hexamethylenetetramine and mass fraction are that 0.5% hydrogen chloride solution is uniformly mixed by 4: 1 in molar ratio, additive are obtained, by weight
Number meter is measured, weighs 5 portions of nonionic surfactants, 25 parts of cationic surfactants, 15 parts of additives, 5 parts of inhibitions respectively
Agent, 3 parts of builders, 0.3 part of defoaming agent, 25 parts of deionized waters, 1 part of pH adjusting agent mix builder and deionized water, in temperature
Degree is to stir evenly at 45 DEG C, obtains mixed liquor, and nonionic surfactant and cationic surfactant is added, is in power
Ultrasonic disperse 4min under 350W, and 8min is stirred in the case where revolving speed is 80r/min, precursor liquid is obtained, additive, corrosion inhibiter is added and disappears
Infusion continues to stir 1h in the case where revolving speed is 110r/min, and is 6.5 to get metal surface with pH adjusting agent regulation system pH value
Residual oil cleaning agent.
Example 3
Hexamethylenetetramine and mass fraction are that 0.5% hydrogen chloride solution is uniformly mixed by 4: 1 in molar ratio, additive are obtained, by weight
Number meter is measured, weighs 6 portions of nonionic surfactants, 30 parts of cationic surfactants, 20 parts of additives, 10 parts of inhibitions respectively
Agent, 5 parts of builders, 0.5 part of defoaming agent, 30 parts of deionized waters, 2 parts of pH adjusting agents mix builder and deionized water, in temperature
Degree is to stir evenly at 50 DEG C, obtains mixed liquor, and nonionic surfactant and cationic surfactant is added, is in power
Ultrasonic disperse 5min under 400W, and stir 10min in the case where revolving speed is 100r/min, obtains precursor liquid, be added additive, corrosion inhibiter and
Defoaming agent continues to stir 2h in the case where revolving speed is 120r/min, and is 7.0 to get metal watch with pH adjusting agent regulation system pH value
Face residual oil cleaning agent.
Reference examples: the metal surface residual oil cleaning agent of Dongguan company production.
The metal surface residual oil cleaning agent that example and reference examples are prepared is detected, specific detection is as follows:
Detection can be carried out to the degreasing rate of cleaning agent, rustless property, antifoam performance, corrosion resistance.
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Degreasing rate/% | 99.36 | 99.79 | 99.06 | 85.65 |
| Rustless property | Non-corroding phenomenon | Non-corroding phenomenon | Non-corroding phenomenon | There is corrosion phenomena |
| Foam height/mm | 3.6 | 3.7 | 3.8 | 4.2 |
| Etching extent/mg | 0.4 | 0.4 | 0.5 | 2.1 |
As shown in Table 1, residual oil cleaning agent in metal surface prepared by the present invention has good cleaning ability, antirust ability, defoaming
Ability is good, test piece etching extent≤2mg, and smooth appearance is as before, has reached 0 grade of mark in professional standard JB4322-86
It is quasi-.
Claims (9)
1. a kind of preparation method of metal surface residual oil cleaning agent, it is characterised in that specific preparation step are as follows: by six methines four
Amine and mass fraction are uniformly mixed for 0.5% hydrogen chloride solution, obtain additive, according to parts by weight, weigh respectively 4~6 parts it is non-from
Sub- surfactant, 20~30 parts of cationic surfactants, 10~20 parts of additives, 1~10 part of corrosion inhibiter, 1~5 part help and wash
Agent, 0.2~0.5 part of defoaming agent, 20~30 parts of deionized waters, 1~2 part of pH adjusting agent mix builder and deionized water,
Temperature is to stir evenly at 40~50 DEG C, obtains mixed liquor, and nonionic surfactant and cationic surfactant, ultrasound is added
And stir process, it obtains precursor liquid, is added additive, corrosion inhibiter and defoaming agent, stir process, and with pH adjusting agent regulation system pH
Value is to get metal surface residual oil cleaning agent.
2. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: described six
Methine tetramine and mass fraction are 0.5% hydrogen chloride solution, 4: 1 mixing in molar ratio.
3. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: described is non-
Ionic surface active agent is non-ion fluorin carbon surface active agent.
4. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: the sun
Ionic surface active agent is quaternary ammonium salt cationic surfactant.
5. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: described is slow
Erosion agent is one of sodium benzoate, triethanolamine, benzotriazole, triethanolamine oleate.
6. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: described helps
Lotion is the mixing of sodium carbonate, sodium bicarbonate and metasilicate pentahydrate sodium in mass ratio 3: 2: 6.
7. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: described is super
Sound and stir process are 3~5min of ultrasonic disperse in the case where power is 300~400W, and are stirred in the case where revolving speed is 60~100r/min
5~10min.
8. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: described stirs
Processing is mixed to continue 1~2h of stirring in the case where revolving speed is 100~120r/min.
9. a kind of preparation method of metal surface residual oil cleaning agent according to claim 1, it is characterised in that: the pH
Regulator is that mass fraction is 0.5% hydrogen chloride solution, and adjusting pH value is 6.0~7.0.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111549351A (en) * | 2020-06-15 | 2020-08-18 | 南通科星化工有限公司 | High-cleaning-ability environment-friendly metal surface oil stain cleaning agent and preparation method thereof |
| CN114468432A (en) * | 2022-03-07 | 2022-05-13 | 高梵(浙江)信息技术有限公司 | Waterproof fabric for down garment and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111549351A (en) * | 2020-06-15 | 2020-08-18 | 南通科星化工有限公司 | High-cleaning-ability environment-friendly metal surface oil stain cleaning agent and preparation method thereof |
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| CN114468432B (en) * | 2022-03-07 | 2023-07-28 | 高梵(浙江)信息技术有限公司 | Waterproof fabric for down jackets and preparation method thereof |
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