CN103146357A - Preparation method of glycol water-based long-acting anti-freezing solution - Google Patents
Preparation method of glycol water-based long-acting anti-freezing solution Download PDFInfo
- Publication number
- CN103146357A CN103146357A CN2013101006439A CN201310100643A CN103146357A CN 103146357 A CN103146357 A CN 103146357A CN 2013101006439 A CN2013101006439 A CN 2013101006439A CN 201310100643 A CN201310100643 A CN 201310100643A CN 103146357 A CN103146357 A CN 103146357A
- Authority
- CN
- China
- Prior art keywords
- deicing fluid
- preparation
- ethylene glycol
- test tube
- add
- 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
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Lubricants (AREA)
Abstract
The invention relates to a preparation method of a chemical additive, and in particular relates to a preparation method of a glycol water-based long-acting anti-freezing solution. The preparation method comprises the following steps: adding glycol, benzotriazole, sodium benzoate, sodium phosphate, sodium silicate and borax in mass ratio of 98.59: 0.05: 0.36: 0.5: 0.4: 0.2 into a reactor, adding the glycol which is 20% of an expected total amount, heating to 70 DEG C, stirring, completely mixing and dissolving, adding the rest glycol, completely mixing and dissolving, adding methylene blue as a colorant, adding the phosphoric acid to regulate the pH value to neutral. The method provided by the invention has the advantages of easily obtained raw materials, low cost, low ice point, good metal rot resistance, small environment pollution and long service life, the requirement of each cooling system can be achieved, and a good prospect is realized.
Description
Technical field
The present invention relates to the preparation method of chemical industry additive, refer more particularly to a kind of preparation method of ethylene glycol aq. type long-life coolant.
Background technology
Deicing fluid is a kind of cooling fluid that contains special additive, is mainly used in the liquid-cooled engine cooling system, and it is antifreeze that deicing fluid has winter, prevents boiling annual scale-deposit-preventing, the premium propertiess such as protection against corrosion summer.
At first the quality of weighing deicing fluid is antifreezing effect, and namely freezing point is lower, and boiling point is higher, and both temperature difference are larger, and the quality of deicing fluid is just better.Secondly; antiseptic and rustproof performance is also very important; because the metal parts that is corroded has for a long time generated a large amount of iron rust; serious meeting is worn gradually the erosion metal sheet and is caused seepage; this is directly connected to the work-ing life of automobile cooling system; deicing fluid is organic by interpolation or inorganic salt solve this problem, provides remarkable anticorrosive protection to cooling system.In addition, good antiscale property is also very important.According to investigations, the automobile cooling system more than 70% has incrustation scale and iron rust, has a strong impact on the cooling system heat sinking function.So deicing fluid also should possess the function of cleaning incrustation scale, iron rust, can lubricate and protect automobile cooling system.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of ethylene glycol aq. type long-life coolant, the method technological process is simple, raw material is easy to get, have the low characteristics of production cost, and technological process no coupling product, without waste, have the good feature of environmental protection, meet current chemical technique demand for development.
The objective of the invention is to be achieved through the following technical solutions:
A kind of preparation method of ethylene glycol aq. type long-life coolant, described method comprises following process:
At first according to quality than ethylene glycol: benzotriazole: phenylformic acid is received: sodium phosphate: water glass: borax=98.59:0.05:0.36:0.5:0.4:0.2 adds five kinds of additives in reactor, add and account for the ethylene glycol of estimating total amount 20%, then be heated to 70 ℃, stir, add all the other ethylene glycol after abundant mixed dissolution, fully mix, add methylene blue as tinting material, add phosphoric acid that the pH value is adjusted to neutrality, get final product.
The preparation method of described a kind of ethylene glycol aq. type long-life coolant, described deicing fluid stoste and water are mixed with deicing fluid according to former liquid hold-up 30～55%.
The preparation method of described a kind of ethylene glycol aq. type long-life coolant, the freezing point that described deicing fluid utilizes oil condensation point tester to test all concentration deicing fluid.
the preparation method of described a kind of ethylene glycol aq. type long-life coolant, the freezing point of all concentration deicing fluid of described test, that deicing fluid is joined in the condensation point testing tube in test tube, the lower end of condensation point thermometer is immersed under liquid level, outer test tube adds dehydrated alcohol, making the bottom of interior test tube contact with dehydrated alcohol gets final product, afterwards a complete set of condensation point test tube is put into oil condensation point tester, observe the variation of thermometer registration, when the fritter crystal can appear in interior test tube, crystal through shaking test tube can spread, present the frozen water admixture, temperature recovery is to certain temperature, be the freezing point of this deicing fluid this moment.
The preparation method of described a kind of ethylene glycol aq. type long-life coolant, described preparation deicing fluid should carry out the metallic corrosion experiment.
The preparation method of described a kind of ethylene glycol aq. type long-life coolant, described metallic corrosion experiment is, deicing fluid is added in Erlenmeyer flask, add therein bloom, iron block, aluminium block, copper sheet, Erlenmeyer flask is put into the heat collecting type constent temperature heater that dimethyl silicone oil is housed, temperature is transferred to 70 ℃, carry out the constant temperature oil bath of 336 hours, ensure during this time air and pass into the deicing fluid that fills metal, guarantee that simultaneously in deicing fluid, each component volatilization degree is reduced to minimum; Quality to metal before and after experiment is measured, and observes appearance change.
Advantage of the present invention and effect are:
1, the invention provides the novel process of a preparation ethylene glycol antifreeze, complete scheme, technology, proportioning raw materials and the control index of this technique is provided.
2, the present invention proposes measurement to deicing fluid freezing point, metal protection, method is simple to operate.
3, in this inventive method, the technological process raw material is easy to get, and has the low characteristics of production cost, and the technological process no coupling product, without waste, has the good feature of environmental protection, meets current chemical technique demand for development.
4, in this inventive method, technique is easy to realize industrialization.
Embodiment
Below in conjunction with example, the present invention is described further, but example does not limit protection scope of the present invention.
Raw material of the present invention has that deionized water, ethylene glycol, benzotriazole, phenylformic acid are received, sodium phosphate, water glass, borax.Ethylene glycol and deionized water are as the deicing fluid main ingredient, and all the other raw materials and ethylene glycol are mixed with deicing fluid stoste.The compound method of deicing fluid stoste is: according to quality than ethylene glycol: benzotriazole: phenylformic acid is received: sodium phosphate: water glass: borax=98.59:0.05:0.36:0.5:0.4:0.2 adds five kinds of additives in reactor, add and account for the ethylene glycol of estimating total amount 20%, then be heated to 70 ℃, stir, add all the other ethylene glycol after abundant mixed dissolution, fully mix, add a small amount of methylene blue as tinting material, add phosphoric acid that the pH value is adjusted to neutrality.Deicing fluid stoste and water are mixed with deicing fluid according to former liquid hold-up 30～55%.The freezing point that the deicing fluid of preparing utilizes oil condensation point tester to test all concentration deicing fluid.Method is that deicing fluid is joined in the condensation point testing tube in test tube, the lower end of condensation point thermometer is immersed under liquid level, note not encountering bottom test tube wall and test tube, check whether resistance to air loss is good, and outer test tube adds appropriate dehydrated alcohol, making the bottom of interior test tube contact with dehydrated alcohol gets final product, afterwards a complete set of condensation point test tube is put into oil condensation point tester, examines the variation of thermometer registration, the time and rock lower test tube, help that in vitro temperature is even, temperature is fallen hurry up.When the fritter crystal can appear in interior test tube, can spread through the crystal of shaking test tube, present the frozen water admixture, temperature recovery is to certain temperature, and be the freezing point of this deicing fluid this moment.Institute's preparation deicing fluid is carried out the corrosion of metal experiment.Method adds bloom, iron block, aluminium block, copper sheet therein for deicing fluid is added in Erlenmeyer flask.Erlenmeyer flask is put into the heat collecting type constent temperature heater that dimethyl silicone oil is housed, temperature is transferred to 70 ℃, carry out the constant temperature oil bath of 336 hours, during ensure air and pass into the deicing fluid that fills metal, guarantee that simultaneously in deicing fluid, each component volatilization degree is reduced to minimum.Quality to metal before and after experiment is measured, and observes appearance change.
Embodiment:
1) the deicing fluid stoste of preparation 800kg, according to quality than ethylene glycol: benzotriazole: phenylformic acid is received: sodium phosphate: water glass: borax=98.59:0.05:0.36:0.5:0.4:0.2 adds five kinds of additives in reactor, add and account for the ethylene glycol of estimating total amount 20%, then be heated to 70 ℃, stir, add all the other ethylene glycol after abundant mixed dissolution, fully mix, add the 2kg methylene blue as tinting material, add 0.6kg phosphoric acid that the pH value is adjusted to neutrality.
2) preparation of deicing fluid: above-mentioned deicing fluid stoste and water are mixed with deicing fluid according to former liquid hold-up 30%, 35%, 40%, 45%, 50%, 52.50%, 55%.
3) freezing point test: get respectively above seven kinds of deicing fluid 50g, utilize oil condensation point tester to test the freezing point of all concentration deicing fluid (the results are shown in subordinate list 1).
4) metal subsidiarity test: get respectively 50% deicing fluid 200g, add four Erlenmeyer flasks, add respectively bloom, iron block, aluminium block, the copper sheet of having weighed.Erlenmeyer flask is put into the heat collecting type constent temperature heater that dimethyl silicone oil is housed, temperature is transferred to 70 ℃, carry out the constant temperature oil bath of 336 hours, during ensure air and pass into the deicing fluid that fills metal, guarantee that simultaneously in deicing fluid, each component volatilization degree is reduced to minimum.The quality of metal before and after experiment is measured, and calculated mass is poor and observe appearance change (the results are shown in subordinate list 2).
Boiling point, the freezing point of the novel ethylene glycol aq. type of subordinate list 1. deicing fluid
| 30% | 35% | 40% | 45% | 50% | 52.50% | 55% | |
| Stock solution quality (kg) | 30.11 | 35.03 | 40 | 45.39 | 50.03 | 55.29 | 55 |
| Solution quality (kg) | 100.34 | 100.02 | 100.01 | 100.8 | 100.06 | 105.89 | 100.03 |
| True score (%) | 30.008 | 34.960 | 39.996 | 45.030 | 50.000 | 52.215 | 54.983 |
| Boiling point (℃) | 105 | 108 | 110 | 111 | 116 | 121 | 117 |
| Freezing point (℃) | -23 | -26 | -28. | -33.8 | -35.0 | -36.9 | -39.0 |
The metal protection of the novel ethylene glycol aq. type of subordinate list 2. deicing fluid
| Metal | Steel | Iron | Aluminium | Copper |
| Front quality (g) | 6.2566 | 2.8130 | 0.9823 | 0.6093 |
| Rear quality (g) | 6.2564 | 2.8117 | 0.9828 | 0.6105 |
| Front and back change | The surface is substantially intact | There is the minute quantity iron rust on the surface | There is passivation layer on the surface | There is passivation layer on the surface |
Claims (6)
1. the preparation method of an ethylene glycol aq. type long-life coolant, is characterized in that, described method comprises following process:
At first according to quality than ethylene glycol: benzotriazole: phenylformic acid is received: sodium phosphate: water glass: borax=98.59:0.05:0.36:0.5:0.4:0.2 adds five kinds of additives in reactor, add and account for the ethylene glycol of estimating total amount 20%, then be heated to 70 ℃, stir, add all the other ethylene glycol after abundant mixed dissolution, fully mix, add methylene blue as tinting material, add phosphoric acid that the pH value is adjusted to neutrality, get final product.
2. according to the preparation method of a kind of ethylene glycol aq. type long-life coolant claimed in claim 1, it is characterized in that, described deicing fluid stoste and water are mixed with deicing fluid according to former liquid hold-up 30～55%.
3. according to the preparation method of a kind of ethylene glycol aq. type long-life coolant claimed in claim 1, it is characterized in that the freezing point that described deicing fluid utilizes oil condensation point tester to test all concentration deicing fluid.
4. according to the preparation method of a kind of ethylene glycol aq. type long-life coolant claimed in claim 3, it is characterized in that, the freezing point of all concentration deicing fluid of described test, that deicing fluid is joined in the condensation point testing tube in test tube, the lower end of condensation point thermometer is immersed under liquid level, outer test tube adds dehydrated alcohol, making the bottom of interior test tube contact with dehydrated alcohol gets final product, afterwards a complete set of condensation point test tube is put into oil condensation point tester, observe the variation of thermometer registration, when the fritter crystal can appear in interior test tube, crystal through shaking test tube can spread, present the frozen water admixture, temperature recovery is to certain temperature, be the freezing point of this deicing fluid this moment.
5. according to the preparation method of a kind of ethylene glycol aq. type long-life coolant claimed in claim 1, it is characterized in that, described preparation deicing fluid should carry out the metallic corrosion experiment.
6. according to the preparation method of a kind of ethylene glycol aq. type long-life coolant claimed in claim 5, it is characterized in that, described metallic corrosion experiment is, deicing fluid is added in Erlenmeyer flask, add therein bloom, iron block, aluminium block, copper sheet, Erlenmeyer flask is put into the heat collecting type constent temperature heater that dimethyl silicone oil is housed, temperature is transferred to 70 ℃, carry out the constant temperature oil bath of 336 hours, ensure during this time air and pass into the deicing fluid that fills metal, guarantee that simultaneously in deicing fluid, each component volatilization degree is reduced to minimum; Quality to metal before and after experiment is measured, and observes appearance change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101006439A CN103146357A (en) | 2013-03-26 | 2013-03-26 | Preparation method of glycol water-based long-acting anti-freezing solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101006439A CN103146357A (en) | 2013-03-26 | 2013-03-26 | Preparation method of glycol water-based long-acting anti-freezing solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103146357A true CN103146357A (en) | 2013-06-12 |
Family
ID=48544687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101006439A Pending CN103146357A (en) | 2013-03-26 | 2013-03-26 | Preparation method of glycol water-based long-acting anti-freezing solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103146357A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773323A (en) * | 2014-01-06 | 2014-05-07 | 沈阳化工大学 | Antifreezing fluid for automobile engine |
| CN110343512A (en) * | 2019-07-14 | 2019-10-18 | 茌平县鲁华工贸有限公司 | A kind of anti-icing fluid and its production technology |
| CN110724502A (en) * | 2019-11-01 | 2020-01-24 | 界首市金一龙粮食机械购销有限公司 | Anticorrosion wear-resistant modification method for antifreezing cooling liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524919A (en) * | 2003-09-15 | 2004-09-01 | 沈维生 | Compound cooling fluid for automobile and light duty engine and preparing process thereof |
| CN101629070A (en) * | 2008-07-16 | 2010-01-20 | 中国石油天然气股份有限公司 | Engine coolant |
-
2013
- 2013-03-26 CN CN2013101006439A patent/CN103146357A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524919A (en) * | 2003-09-15 | 2004-09-01 | 沈维生 | Compound cooling fluid for automobile and light duty engine and preparing process thereof |
| CN101629070A (en) * | 2008-07-16 | 2010-01-20 | 中国石油天然气股份有限公司 | Engine coolant |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773323A (en) * | 2014-01-06 | 2014-05-07 | 沈阳化工大学 | Antifreezing fluid for automobile engine |
| CN110343512A (en) * | 2019-07-14 | 2019-10-18 | 茌平县鲁华工贸有限公司 | A kind of anti-icing fluid and its production technology |
| CN110724502A (en) * | 2019-11-01 | 2020-01-24 | 界首市金一龙粮食机械购销有限公司 | Anticorrosion wear-resistant modification method for antifreezing cooling liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101698793B (en) | Automobile antifreeze | |
| CN104031620A (en) | Anti-boiling, anti-scale and anti-freeze solution and preparation method thereof | |
| CN104031615A (en) | Anti-scaling antifreezing fluid and preparation method thereof | |
| CN104130755A (en) | Anticorrosion and environmental protection automobile antifreeze fluid and preparation method thereof | |
| CN102260486A (en) | 1,2-propylene glycol antifreezing liquid coolant | |
| CN103146357A (en) | Preparation method of glycol water-based long-acting anti-freezing solution | |
| CN107384336A (en) | A kind of automobile using long-acting liquid coolant and preparation method thereof | |
| US20080230740A1 (en) | Nontoxic Watery Solution Against Freezing and Corrosion and the Regenerator For the Utilized Antifreeze | |
| CN107151550A (en) | A kind of multifunction long-acting anti-freeze solution and its preparation technology | |
| CN106520080A (en) | Full-organic-type long-acting anti-freezing cooling liquid, anti-freezing cooling liquid and preparation method thereof | |
| CN106244113A (en) | A kind of Environmentally-friendly heat pump working medium and preparation method thereof | |
| CN104250545A (en) | Glyceryl antifreezing solution | |
| CN104673253A (en) | Research on components of novel automotive anti-freeze fluid | |
| CN101134891A (en) | Automobile engine winterization fluid | |
| CN103102873B (en) | Engine antifreezing fluid | |
| CN102108287A (en) | Antifreeze | |
| CN103275677A (en) | Preparation method of long-acting anti-freeze solution | |
| CN106367039A (en) | Vehicle antifreezing solution and preparation method thereof | |
| CN108070363A (en) | A kind of preparation method of long effective environmental protection type anti-icing fluid | |
| CN108130055A (en) | A kind of Pluronic polyols water-free cooling and preparation method thereof | |
| CN103102872B (en) | Engine antifreezing fluid | |
| CN105331336A (en) | Coolant for internal combustion engines | |
| CN102093851A (en) | Anti-freezing solution for water tanks of automobiles and preparation method thereof | |
| CN103113860B (en) | Engine antifreezing solution | |
| CN105199680A (en) | Preparation method of antifreezing solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130612 |