WO2006046275A1 - 不凍液/冷却液組成物 - Google Patents
不凍液/冷却液組成物 Download PDFInfo
- Publication number
- WO2006046275A1 WO2006046275A1 PCT/JP2004/015780 JP2004015780W WO2006046275A1 WO 2006046275 A1 WO2006046275 A1 WO 2006046275A1 JP 2004015780 W JP2004015780 W JP 2004015780W WO 2006046275 A1 WO2006046275 A1 WO 2006046275A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- antifreeze
- mass
- salt
- coolant composition
- 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
- 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
- C09K5/20—Antifreeze additives therefor, e.g. for radiator liquids
-
- 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
- C23F11/18—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 using inorganic inhibitors
- C23F11/187—Mixtures of inorganic inhibitors
-
- 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
- C23F11/18—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 using inorganic inhibitors
- C23F11/187—Mixtures of inorganic inhibitors
- C23F11/188—Mixtures of inorganic inhibitors containing phosphates
Definitions
- the present invention relates to an antifreeze Z coolant composition applied to a cooling system of an internal combustion engine such as an engine. Specifically, the present invention effectively suppresses corrosion of magnesium or a magnesium alloy constituting the cooling system.
- the antifreeze that can be produced relates to a Z coolant composition.
- Metals such as aluminum, aluminum alloys, pig iron, steel, brass, solder, and copper are used for cooling systems of internal combustion engines such as engines. These metals corrode on contact with water or air. For this reason, corrosion prevention of these metals has been attempted by including a metal corrosion inhibitor in the antifreeze Z cooling liquid composition applied to the cooling system.
- magnesium or a magnesium alloy has the lowest standard electrode potential among practical metals, and it has been difficult to effectively suppress corrosion in an aqueous solution.
- compositions using compounds effective in preventing corrosion of magnesium or magnesium alloys have been proposed.
- fluoride is known as an antifungal agent for magnesium (see Non-Patent Document 1).
- Patent Document 1 proposes a cooling liquid composition containing a composition in which a carboxylic acid is added to the fluoride or fluorocarboxylic acid (see Patent Document 1).
- Non-Patent Document 1 SAE Technical Paper Series 850418
- Patent Document 1 Special Table 2002—527619
- Patent Document 2 Special Table 2004— 506091
- the present inventors have conducted extensive research on an antifreeze Z coolant composition having a corrosion inhibiting effect sufficient to be applied to a cooling system such as an engine composed of magnesium or a magnesium alloy.
- the present inventors have found that a combination of a fluorine compound and an inorganic acid is extremely effective for inhibiting corrosion of magnesium or a magnesium alloy, and based on this knowledge, completed the present invention relating to a novel antifreeze Z coolant composition.
- an object of the present invention is to provide an antifreeze Z coolant composition that can effectively suppress corrosion of magnesium or a magnesium alloy constituting a cooling system.
- the present invention is based on one or a mixture of two or more selected from water, alcohols, glycols, and glycol ethers, and fluorine is contained in the base.
- the gist of the antifreeze Z-coolant yarn and compound which is characterized by containing a compound and inorganic acids.
- the antifreeze Z coolant composition of the present invention has a function of effectively suppressing the corrosion of magnesium or a magnesium alloy constituting the cooling system, and the base in this composition is water, alcohols , Glycols, and glycol ethers are selected from one or a mixture of two or more.
- Examples of alcohols include those composed of one kind or a mixture of two or more kinds selected from methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol and octanol.
- glycols include ethylene glycol, diethylene glycol, and triethylene.
- ethylene glycol propylene glycol, 1,3-propanediol, 1,3-butanediol, 1,5-pentanediol, and hexylene glycol. it can.
- glycol ethers examples include ethylene glycol monomethyl ether, diethylene glycol nomonomethylol ether, triethylene glycol nole monomethylol ether, tetraethylene glycol nole monomethylol ether, ethylene glycol nole monoethylin etherate.
- the antifreeze Z coolant composition according to the present invention is characterized by containing a fluorine compound and inorganic acids in the base.
- a fluorine compound is a component that effectively suppresses corrosion of magnesium or a magnesium alloy constituting a cooling system in cooperation with inorganic acids.
- the fluorine compound include hydrogen fluoride, potassium fluoride, sodium fluoride, ammonium fluoride, lithium fluoride, sodium fluorocarboxylate, and potassium fluorocarboxylate.
- hydrogen fluoride, potassium fluoride, sodium fluoride, and ammonium fluoride force Any one or more of the selected fluorides are excellent in the corrosion inhibition effect of magnesium or magnesium alloy. It is preferable.
- the content of the fluorine compound is preferably in the range of 0.01 to 5.0% by mass. If the fluorine compound content is less than this range, sufficient corrosion-inhibiting effect on magnesium or magnesium alloy cannot be obtained, and if the fluorine compound content is more than this range, it exceeds the range. The effect of only the minute cannot be expected and it becomes uneconomical.
- Inorganic acids are components that effectively inhibit corrosion of magnesium or a magnesium alloy constituting the cooling system in cooperation with the fluorine compound.
- the inorganic acids phosphoric acid, caiic acid, boric acid, nitric acid, nitrous acid, molybdic acid, carbonic acid, sulfuric acid, titanic acid, vanadic acid, manganic acid, germanic acid, tungstic acid and their salts are selected. 1 There may be mentioned seeds or a mixture of two or more. By including one or more of these, the corrosion resistance to magnesium or a magnesium alloy will be further improved.
- examples of phosphoric acid include orthophosphoric acid, pyrophosphoric acid, trimetaphosphoric acid, and some examples include tetrametaphosphoric acid.
- examples of the key acid include sodium salt, potassium salt and Na 2 O / XSiO of metasilicic acid (where X is 0.5-3.3.3).
- Any one or two or more of the selected sodium salt strengths may be mentioned.
- salts of boric acid, nitric acid, nitrous acid, molybdic acid, carbonic acid, sulfuric acid, titanic acid, vanadic acid, manganic acid, germanic acid, and tungstic acid include sodium salt, potassium salt, and ammonium. A salt etc. can be mentioned.
- phosphoric acid and / or a salt thereof a key acid and / or a salt thereof, or a combination of at least two or more of phosphoric acid and / or a salt thereof and a key acid and / or a salt thereof are also selected.
- the content of the inorganic acids is preferably in the range of 0.01 to 10.0 mass%. If the content of inorganic acids is less than this range, sufficient corrosion inhibitory effect on magnesium or magnesium alloy cannot be obtained, and if the content of inorganic acids is higher than this range, The effect beyond the range cannot be expected, making it uneconomical.
- phosphoric acid and / or a salt thereof are used as inorganic acids, or when caic acid and / or a salt thereof are used, a fluorine compound, phosphoric acid and / or a salt thereof or a caic acid and / or a salt thereof
- the fluorine content in the composition is 0%. It is desirable that phosphoric acid and / or a salt thereof or a key acid and / or salt is contained in a range of 0.01 to 5.0% by mass in the range of 0.01 to 5.0% by mass.
- phosphoric acid and / or a salt thereof and cay acid and / or a salt thereof are each within a range of 0.01 to 5.0% by mass in the composition. It is desirable to contain in the range of 0% by mass.
- the antifreeze Z coolant composition according to the present invention further includes an aromatic monobasic acid, an aromatic dibasic acid, an aliphatic monobasic acid, an aliphatic dibasic acid, and salts thereof. One or a mixture of two or more selected may be included.
- Aromatic monobasic acids and salts thereof include benzoic acids such as benzoic acid, nitrobenzoic acid, and hydroxybenzoic acid, p-tolylic acid, p-ethylbenzoic acid, p-propylbenzoic acid, p Isopropyl benzoic acid, alkylbenzoic acid such as p-tertbutyl benzoic acid, alkoxybenzoic acid represented by the general formula RO—CH COOH (where R is a C 1 C alkyl group)
- a cinnamate an alkyl cinnamate, an alkoxy cinnamate, and alkali metal salts, ammonium salts, and amine salts thereof.
- benzoic acid, p-toluic acid, and p-tertbutylbenzoic acid are excellent in the corrosion prevention performance of aluminum-based or iron-based metals, and it is desirable that at least one of these be included.
- aromatic dibasic acid and salts thereof examples include phthalic acid, isophthalic acid, terephthalic acid, and alkali metal salts and ammonium salts thereof.
- the content of the aromatic monobasic acid or aromatic dibasic acid is preferably in the range of 0.1-10 mass%.
- the content of these aromatic monobasic acids or aromatic dibasic acids is 0.1 mass
- Aliphatic monobasic acids and salts thereof include pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, 2-ethylhexanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, Examples thereof include oleic acid, linoleic acid, linolenic acid, ricinoleic acid, stearic acid, and alkali metal salts and ammonium salts thereof.
- Aliphatic dibasic acids and salts thereof include oxalic acid, malonic acid, succinic acid, daltaric acid, adipic acid, piperic acid, suberic acid, azelaic acid, sebacic acid, undecane diacid, dodecane diacid, Examples include brassylic acid and taptic acid, or alkali metal salts, amine salts, and ammonium salts thereof. Among them, suberic acid, azelaic acid, sebacic acid, undecane diacid and dodecane diacid are more preferable because of their superior performance.
- the aliphatic monobasic acid, the aliphatic dibasic acid, and salts thereof are desirably contained in the range of 0.1 to 10% by mass.
- the content of aliphatic monobasic acid, aliphatic dibasic acid and their salts is less than 0.1% by mass, sufficient corrosion prevention effect for aluminum-based or iron-based metal is not exhibited, and 10% by mass If it exceeds, it will be uneconomical because of the effect of exceeding.
- the antifreeze Z coolant composition according to the present invention may further contain one or a mixture of two or more selected from among triazoles and thiazoles.
- the triazoles include benzotriazole, tolyltriazole, 4 ferruol 1, 2, 3 triazole, 2 naphthotriazole, and 4-nitrobenzotriazole. Benzotriazole and tolyltriazole are desirable.
- thiazoles include benzothiazole and mercaptobenzothiazole.
- Addition of these triazoles or thiazoles can improve the anticorrosion effect of copper-based metals such as brass and copper.
- the content of thiazoles is preferably in the range of 0.01-1.0% by mass.
- the content of thiazoles is preferably in the range of 0.01-1.0% by mass.
- the antifreeze Z coolant composition according to the present invention preferably has a pH in the range of 9-13.
- the pH value is within the above range, the corrosion inhibiting effect on magnesium or magnesium alloy can be further improved.
- the antifreeze Z cooling liquid composition according to the present invention includes an antifoaming agent and coloring.
- An agent and a conventionally known corrosion inhibitor can also be included.
- the antifreeze Z coolant composition of the present invention is based on one or a mixture of two or more selected from water, alcohols, glycols, and glycol ethers, and fluorine is contained in the base. Since it contains a compound and inorganic acids, corrosion of magnesium or a magnesium alloy constituting the cooling system can be effectively suppressed.
- Example 1 containing potassium fluoride and phosphate
- Example 2 containing potassium fluoride and silicate
- potassium fluoride phosphate and silicate Example 3 including each was shown.
- Comparative Example 1 containing no antifungal additive Comparative Example 2 containing only potassium fluoride
- Comparative Example 3 containing only phosphate
- Comparative Example 4 containing only kaate are shown in the above examples.
- Each sample in 1 and 3 and Comparative Example 1 and 4 was subjected to a metal corrosion test to confirm the change in mass of each metal and whether there was any abnormal appearance.
- the test results are shown in Table 2.
- the metal corrosion test was conducted based on the JIS K 2234 metal corrosive regulations, and Mg alloy (AZ91D) was used for this metal test piece.
- the present invention is suitably used for a cooling system of an internal combustion engine such as an engine, in particular, a cooling system composed of magnesium and a magnesium alloy.
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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)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006542152A JPWO2006046275A1 (ja) | 2004-10-25 | 2004-10-25 | 不凍液/冷却液組成物 |
PCT/JP2004/015780 WO2006046275A1 (ja) | 2004-10-25 | 2004-10-25 | 不凍液/冷却液組成物 |
EP04792917A EP1816177A4 (en) | 2004-10-25 | 2004-10-25 | FREEZER AND COOLANT |
US11/789,726 US7540974B2 (en) | 2004-10-25 | 2007-04-25 | Antifreeze/coolant composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/015780 WO2006046275A1 (ja) | 2004-10-25 | 2004-10-25 | 不凍液/冷却液組成物 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/789,726 Continuation-In-Part US7540974B2 (en) | 2004-10-25 | 2007-04-25 | Antifreeze/coolant composition |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006046275A1 true WO2006046275A1 (ja) | 2006-05-04 |
Family
ID=36227527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/015780 WO2006046275A1 (ja) | 2004-10-25 | 2004-10-25 | 不凍液/冷却液組成物 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7540974B2 (ja) |
EP (1) | EP1816177A4 (ja) |
JP (1) | JPWO2006046275A1 (ja) |
WO (1) | WO2006046275A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005006476A1 (ja) | 2003-07-11 | 2005-01-20 | Shishiai-Kabushikigaisha | 燃料電池用冷却液組成物 |
WO2006092857A1 (ja) * | 2005-03-02 | 2006-09-08 | Shishiai-Kabushikigaisha | 燃料電池用冷却液組成物 |
EP2003182A2 (en) * | 2006-03-31 | 2008-12-17 | Shishiai-Kabushikigaisha | Coolant composition |
JP6227248B2 (ja) * | 2012-12-27 | 2017-11-08 | 出光興産株式会社 | 水系冷却剤 |
CN104845595B (zh) * | 2015-05-13 | 2018-01-23 | 北京中德汇诚石油技术有限公司 | 一种汽车发动机用无水冷却液组合物 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5100571A (en) * | 1990-11-13 | 1992-03-31 | Royal Harvest, Inc. | Additive for engine cooling system |
JP2002527619A (ja) * | 1998-10-14 | 2002-08-27 | テキサコ・デベロップメント・コーポレーション | 腐食抑制剤、および伝熱流体およびエンジン冷却剤中の軽金属を保護する相乗作用的な抑制剤の組合せ |
JP2004506091A (ja) * | 2000-07-24 | 2004-02-26 | ビーエーエスエフ アクチェンゲゼルシャフト | マグネシウムとマグネシウム合金を保護するためのアミドを基礎とする不凍剤濃縮液およびこれを含む冷却剤組成物 |
JP2004068155A (ja) * | 2002-08-02 | 2004-03-04 | Clariant Gmbh | 不凍液 |
JP2004143473A (ja) * | 2002-10-21 | 2004-05-20 | Toyota Motor Corp | 冷却液組成物及び冷却液組成物用添加剤 |
JP2004530017A (ja) * | 2001-05-10 | 2004-09-30 | ビーエーエスエフ アクチェンゲゼルシャフト | 染料C.I.ReactiveViolet5を含有する不凍液濃縮物 |
WO2004085566A1 (de) * | 2003-03-25 | 2004-10-07 | Basf Aktiengesellschaft | Gefrierschutzmittelkonzentrate und kühlmittelzusammensetzungen auf basis von polyglykolen und amiden zum schutz von magnesium und dessen legierungen |
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-
2004
- 2004-10-25 JP JP2006542152A patent/JPWO2006046275A1/ja active Pending
- 2004-10-25 EP EP04792917A patent/EP1816177A4/en not_active Withdrawn
- 2004-10-25 WO PCT/JP2004/015780 patent/WO2006046275A1/ja active Application Filing
-
2007
- 2007-04-25 US US11/789,726 patent/US7540974B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5100571A (en) * | 1990-11-13 | 1992-03-31 | Royal Harvest, Inc. | Additive for engine cooling system |
JP2002527619A (ja) * | 1998-10-14 | 2002-08-27 | テキサコ・デベロップメント・コーポレーション | 腐食抑制剤、および伝熱流体およびエンジン冷却剤中の軽金属を保護する相乗作用的な抑制剤の組合せ |
JP2004506091A (ja) * | 2000-07-24 | 2004-02-26 | ビーエーエスエフ アクチェンゲゼルシャフト | マグネシウムとマグネシウム合金を保護するためのアミドを基礎とする不凍剤濃縮液およびこれを含む冷却剤組成物 |
JP2004530017A (ja) * | 2001-05-10 | 2004-09-30 | ビーエーエスエフ アクチェンゲゼルシャフト | 染料C.I.ReactiveViolet5を含有する不凍液濃縮物 |
JP2004068155A (ja) * | 2002-08-02 | 2004-03-04 | Clariant Gmbh | 不凍液 |
JP2004143473A (ja) * | 2002-10-21 | 2004-05-20 | Toyota Motor Corp | 冷却液組成物及び冷却液組成物用添加剤 |
WO2004085566A1 (de) * | 2003-03-25 | 2004-10-07 | Basf Aktiengesellschaft | Gefrierschutzmittelkonzentrate und kühlmittelzusammensetzungen auf basis von polyglykolen und amiden zum schutz von magnesium und dessen legierungen |
Non-Patent Citations (1)
Title |
---|
See also references of EP1816177A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1816177A4 (en) | 2010-10-06 |
JPWO2006046275A1 (ja) | 2008-05-22 |
EP1816177A1 (en) | 2007-08-08 |
US20080035880A1 (en) | 2008-02-14 |
US7540974B2 (en) | 2009-06-02 |
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