WO2005054399A1 - 冷却液組成物 - Google Patents
冷却液組成物 Download PDFInfo
- Publication number
- WO2005054399A1 WO2005054399A1 PCT/JP2003/015332 JP0315332W WO2005054399A1 WO 2005054399 A1 WO2005054399 A1 WO 2005054399A1 JP 0315332 W JP0315332 W JP 0315332W WO 2005054399 A1 WO2005054399 A1 WO 2005054399A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strontium
- magnesium
- acid
- weight
- cavitation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
Definitions
- the present invention relates to a coolant composition mainly used for a coolant of an internal combustion engine or the like, and more particularly, to an aluminum or aluminum alloy used for a cooling system of an internal combustion engine.
- the present invention relates to a coolant composition that is excellent in preventing corrosion of alloys, iron and steel, and suppressing damage to cavitation.
- BACKGROUND ART Metals such as aluminum, aluminum alloys, iron, steel, brass, solder, and copper are used in cooling systems for internal combustion engines such as engines. Since these metals corrode on contact with water or air, the cooling system is filled with a coolant composition containing a corrosion inhibitor together with water to prevent corrosion of these metals.
- nitrite has a very effective effect on cavitation damage
- nitrite reacts with amine to generate nitrosamine, a carcinogenic substance. Its use has long been viewed as a problem.
- a non-nitrite cooling liquid composition which does not contain nitrite and suppresses cavitation damage has been proposed.
- the non-nitrite-based cooling liquid composition include, for example, a composition containing a glycol as a main component, a P-toluate and a molybdate (Japanese Patent Application Laid-Open No. H10-77464). Gazette).
- An object of the present invention is to provide a coolant composition that has excellent corrosion protection against metals in a power system, particularly aluminum, aluminum alloys, iron and steel, and is effective in suppressing damage to cavitation. is there.
- the present invention provides a cooling liquid composition containing glycols as a main component, comprising: (a) 0.1 to 10% by weight of an aliphatic monobasic acid or (B) 0.1 to 10% by weight of alkyl benzoic acid or at least one selected from salts thereof; and (c) 0.0001 to 0.1% by weight. 0.1% by weight of a strontium compound, a magnesium compound or a calcium compound, and at least one selected from the group consisting of: (d) 0.01 to 2.0% by weight of a phosphate,
- the gist is a liquid composition.
- Dalicols which are the main components of the coolant composition of the present invention (hereinafter simply referred to as composition), include ethylene glycol, propylene glycol, 1,3-butylene glycol, hexylene glycol, diethylene glycol, glycerin and the like. Among them, ethylene glycol or propylene glycol is preferred from the viewpoints of chemical stability, handleability, price, and availability.
- the composition of the present invention contains the above-mentioned four components (a) to (d) in the above-mentioned main components, and a synergistic effect of these components (a) to (d) allows the metal such as aluminum to be used. The effects of preventing corrosion and suppressing damage to cavitation are being derived.
- Aliphatic monobasic acids or salts thereof as components include pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, 2-ethylhexanoic acid, nonanoic acid, decanoic acid, pendecanoic acid, dodecanoic acid, Preferred examples include oleic acid, linoleic acid, linolenic acid, ricinoleic acid, stearic acid and their alkali metal salts, ammonium salts and the like. Aliphatic monobasic acids or salts thereof are contained in the range of 0.1 to 10% by weight.
- alkyl benzoic acid in the component (b) examples include p-toluic acid, p-ethyl benzoic acid, p-propyl benzoic acid, p-isopropyl benzoic acid, and p-tert-butyl benzoic acid.
- alkyl benzoate examples include an alkali metal salt, an ammonium metal salt, and an amine salt. Particularly, an alkali metal salt is preferable, and among them, a sodium salt and a potassium salt are most preferable.
- Alkyl benzoic acid or a salt thereof is contained in the range of 0.1 to 10% by weight.
- Alkyl benzoic acids and their salts have an excellent corrosion inhibitory function against aluminum-based metals, similar to the above-mentioned aliphatic monobasic acids, and suppress precipitation due to reaction with hard water components in the liquid In addition, it has the function of suppressing cavitation damage in cooperation with aliphatic monobasic acids and their salts.
- strontium compounds include, for example, strontium oxide, strontium hydroxide, strontium chloride, strontium fluoride, strontium iodide, strontium sulfate, strontium nitrate, strontium titanate, strontium borate, strontium borate, Strontium tungstate, stonium phosphate, strontium dihydrogen phosphate, strontium formate, strontium acetate Strontium propionate, strontium butyrate, strontium valerate, strontium laurate, strontium stearate, strontium oleate, strontium glutamate, strontium lactate, strontium succinate, strontium malate, strontium maltate, strontium tartrate, strontium tartrate, strontium tartrate, strontium tartrate, strontium tartrate
- strontium tartrate examples include strontium strontium, strontium oxalate, strontium malonate, strontium se
- Strontium is preferred.
- the magnesium compound include, for example, magnesium chloride, magnesium oxide, magnesium hydroxide, magnesium carbonate, magnesium nitrate, magnesium sulfate, magnesium titanate, magnesium tandastate, magnesium borate, magnesium phosphate, magnesium dihydrogen phosphate.
- Calcium compounds include formate, acetate, propionate, butyrate, valerate, laurate, stearate, oleate, glutamate, lactate, succinate, and malate. , Tartrate, maleate, citrate, oxalate, malonate, sebacate, benzoate, furate, salicylate, mandel Acid salts, oxides, hydroxides, permanganates, chromates, fluorides, iodides, carbonates, nitrates, sulfates, titanates, tungstates, borates, phosphates, phosphorus Examples include dihydrogen acid salts.
- the strontium compound, the magnesium compound or the calcium compound is contained at a ratio of 0.0001 to 0.1% by weight. If the content is less than 0.001% by weight, the above-mentioned corrosion prevention function and the function of suppressing damage to cavitation will be insufficient, and if the content exceeds 0.1% by weight, It is not economical because it is not enough.
- Examples of the phosphate as the component (d) include orthophosphoric acid, pyrophosphoric acid, trimethoric acid, and tetramethylic phosphoric acid.By including one or more of these,
- the synergistic effect with at least one selected from strontium compounds, magnesium compounds and magnesium compounds has led to an effect of being superior in preventing corrosion of aluminum or aluminum alloys at high temperatures and suppressing cavitation damage.
- the phosphates are contained in a proportion of 0.01 to 2.0% by weight. When the content is less than 0.1% by weight, the above-mentioned corrosion prevention function is insufficient, and when the content is more than 2.0% by weight, there is no effect as much as the excess, and it is uneconomical. Because it becomes.
- the composition according to the present invention may be in a form not containing molybdate.
- the coolant composition of the present invention (a) 0.1 to 10% by weight of at least one selected from aliphatic monobasic acids or salts thereof; 1 ⁇ 10 weight And (c) at least one selected from 0.0001 to 0.1% by weight of a strontium compound, a magnesium compound, or a calcium compound; (D) By containing 0.01% to 2.0% by weight of a phosphate, it has an excellent corrosion-inhibiting effect on metals such as aluminum, aluminum alloys, iron and steel, and has a cavitation effect.
- FIG. 1 is a schematic view showing a test apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
- the composition of the present invention will be described in more detail.
- Example 1 shows Examples 1-2 and Comparative Examples 1-4 of the present invention.
- Example 1 (a) octanoic acid as an aliphatic monobasic acid as a component, (b) tolylic acid as an alkylbenzoic acid as a component, (c) strontium nitrate as a strontium compound as a component, and ( d) Contains phosphoric acid as a component.
- Example 2 uses hexanoic acid instead of octanoic acid as the component (a).
- Comparative Example 1 lacks the components (c) and (d) among the components (a) to (d), Comparative Example 2 lacks the component (c), and Comparative Example 3 lacks the component (b).
- Component lacking, Comparative Example 4 lacks component (a).
- a metal corrosion test was performed on each of the samples of the above example and comparative examples 3 and 4, and the mass change of each metal was measured, and the presence or absence of abnormalities in the appearance was confirmed. The results are shown in Table 2.
- the metal corrosion test was conducted in accordance with the JISK2234 metal corrosion test, and aluminum metal, iron, steel, brass, solder, and copper test pieces were used as the metals for this test. .
- Example 1 Example 1, Example 2, and Comparative Example 2 were subjected to a high-temperature aluminum heat transfer surface test to measure the change in the mass of the metal and to confirm the presence or absence of any abnormal appearance.
- the results are shown in Table 3. High temperature aluminum heat transfer surface test
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/015332 WO2005054399A1 (ja) | 2003-12-01 | 2003-12-01 | 冷却液組成物 |
AU2003284506A AU2003284506A1 (en) | 2003-12-01 | 2003-12-01 | Coolant composition |
JP2005511256A JPWO2005054399A1 (ja) | 2003-12-01 | 2003-12-01 | 冷却液組成物 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/015332 WO2005054399A1 (ja) | 2003-12-01 | 2003-12-01 | 冷却液組成物 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005054399A1 true WO2005054399A1 (ja) | 2005-06-16 |
Family
ID=34640418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/015332 WO2005054399A1 (ja) | 2003-12-01 | 2003-12-01 | 冷却液組成物 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPWO2005054399A1 (ja) |
AU (1) | AU2003284506A1 (ja) |
WO (1) | WO2005054399A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009242663A (ja) * | 2008-03-31 | 2009-10-22 | Cci Corp | 不凍液/冷却液組成物 |
US9115302B2 (en) | 2012-09-05 | 2015-08-25 | Chevron U.S.A. Inc. | Coolant having rapid metal passivation properties |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5387360A (en) * | 1992-10-07 | 1995-02-07 | Ethylene Chemical Co., Ltd. | Engine antifreeze coolant composition |
EP1081250A1 (en) * | 1999-09-02 | 2001-03-07 | CCI Kabushiki Kaisha | Low phosphorus coolant composition |
US6309559B1 (en) * | 1999-07-02 | 2001-10-30 | Clariant Gmbh | Silicate-, borate-and phosphate-free cooling fluids based on glycols and having improved corrosion behavior |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999057218A1 (fr) * | 1998-05-06 | 1999-11-11 | Shishiai-Kabushikigaisha | Liquide de refroidissement dilue |
-
2003
- 2003-12-01 AU AU2003284506A patent/AU2003284506A1/en not_active Abandoned
- 2003-12-01 WO PCT/JP2003/015332 patent/WO2005054399A1/ja active Application Filing
- 2003-12-01 JP JP2005511256A patent/JPWO2005054399A1/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5387360A (en) * | 1992-10-07 | 1995-02-07 | Ethylene Chemical Co., Ltd. | Engine antifreeze coolant composition |
US6309559B1 (en) * | 1999-07-02 | 2001-10-30 | Clariant Gmbh | Silicate-, borate-and phosphate-free cooling fluids based on glycols and having improved corrosion behavior |
EP1081250A1 (en) * | 1999-09-02 | 2001-03-07 | CCI Kabushiki Kaisha | Low phosphorus coolant composition |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009242663A (ja) * | 2008-03-31 | 2009-10-22 | Cci Corp | 不凍液/冷却液組成物 |
US9115302B2 (en) | 2012-09-05 | 2015-08-25 | Chevron U.S.A. Inc. | Coolant having rapid metal passivation properties |
US10246622B2 (en) | 2012-09-05 | 2019-04-02 | Arteco Nv | Coolant having rapid metal passivation properties |
Also Published As
Publication number | Publication date |
---|---|
AU2003284506A1 (en) | 2005-06-24 |
JPWO2005054399A1 (ja) | 2007-06-28 |
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