JP7150376B1 - Scum-dissolving agent for cleaning cold rolling mill and its use - Google Patents
Scum-dissolving agent for cleaning cold rolling mill and its use Download PDFInfo
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 28
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 71
- -1 amine compound Chemical class 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 21
- 239000000194 fatty acid Substances 0.000 claims abstract description 21
- 229930195729 fatty acid Natural products 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 239000012875 nonionic emulsifier Substances 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 9
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 9
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 83
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 19
- 239000003995 emulsifying agent Substances 0.000 claims description 13
- 125000002091 cationic group Chemical group 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 150000005215 alkyl ethers Chemical class 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 4
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 4
- 150000001983 dialkylethers Chemical class 0.000 claims description 4
- 239000000600 sorbitol Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 claims description 3
- 150000002170 ethers Chemical class 0.000 claims description 3
- 229920000233 poly(alkylene oxides) Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 3
- AEDQNOLIADXSBB-UHFFFAOYSA-N 3-(dodecylazaniumyl)propanoate Chemical compound CCCCCCCCCCCCNCCC(O)=O AEDQNOLIADXSBB-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-DYCDLGHISA-N deuterium hydrogen oxide Chemical compound [2H]O XLYOFNOQVPJJNP-DYCDLGHISA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 15
- 239000003208 petroleum Substances 0.000 abstract description 14
- 238000005096 rolling process Methods 0.000 abstract description 10
- 235000019864 coconut oil Nutrition 0.000 abstract description 3
- 239000003240 coconut oil Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 46
- 239000011550 stock solution Substances 0.000 description 15
- 239000003599 detergent Substances 0.000 description 13
- 238000011156 evaluation Methods 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 11
- 239000002518 antifoaming agent Substances 0.000 description 10
- 239000012459 cleaning agent Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000002480 mineral oil Substances 0.000 description 4
- 235000010446 mineral oil Nutrition 0.000 description 4
- 241000047703 Nonion Species 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003350 kerosene Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- LTSWUFKUZPPYEG-UHFFFAOYSA-N 1-decoxydecane Chemical compound CCCCCCCCCCOCCCCCCCCCC LTSWUFKUZPPYEG-UHFFFAOYSA-N 0.000 description 1
- OADIZUFHUPTFAG-UHFFFAOYSA-N 2-[2-(2-ethylhexoxy)ethoxy]ethanol Chemical compound CCCCC(CC)COCCOCCO OADIZUFHUPTFAG-UHFFFAOYSA-N 0.000 description 1
- FXKZPKBFTQUJBA-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium;dihydrate Chemical compound O.O.[Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O FXKZPKBFTQUJBA-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Abstract
【課題】製鉄所内で圧延時に生成され、圧延機、クーラントタンクおよび配管内に蓄積されたスカムを石油系溶剤を用いなくとも溶解・洗浄する能力をもつ冷間圧延機洗浄用スカム溶解剤及びその使用方法を提供すること。【解決手段】（Ａ）特定のノニオン乳化剤と、（Ｂ）シクロヘキシルアミンＥＯ付加物、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、ヤシ油脂肪酸ジエタノールアミドからなる群から選択される少なくとも一種のアミン化合物と、（Ｃ）アルキルアミノカルボン酸型両性イオン化合物と、（Ｄ）水を含有することを特徴とする冷間圧延機洗浄用スカム溶解剤組成物及びその使用方法。【選択図】なしA scum dissolving agent for cleaning a cold rolling mill, which has the ability to dissolve and clean scum generated during rolling in a steel mill and accumulated in the rolling mill, coolant tank, and piping without using a petroleum-based solvent, and a scum dissolving agent therefor. Provide usage instructions. (A) a specific nonionic emulsifier; and (B) at least one amine compound selected from the group consisting of cyclohexylamine-EO adducts, monoethanolamine, diethanolamine, triethanolamine, and coconut oil fatty acid diethanolamide. , (C) an alkylaminocarboxylic acid type zwitterionic compound, and (D) water. [Selection figure] None
Description
本発明は、冷間圧延機、クーラントタンクおよび配管内を洗浄できるスカム溶解剤に関する技術である。本発明の溶解剤は、冷間圧延を行う際に配管内に付着・堆積したスカムの洗浄作業において用いられる。 The present invention relates to a scum dissolving agent capable of cleaning the insides of cold rolling mills, coolant tanks and pipes. The dissolving agent of the present invention is used in cleaning work of scum deposited and accumulated in pipes during cold rolling.
冷間圧延油組成中の油脂や合成エステルは熱や鉄粉が冷間圧延工程で触媒となって加水分解が起き、脂肪酸を生成する。この脂肪酸と圧延時に生成される鉄粉とが反応し、鉄石鹸を生成する。圧延機、クーラントタンクおよび配管内に堆積する堆積物はスカムといい、スカムは、鉄分、水分、油分、鉄石鹸、等で構成される。 Fats and synthetic esters in the cold-rolling oil composition are hydrolyzed by heat and iron powder acting as a catalyst in the cold-rolling process to produce fatty acids. This fatty acid reacts with the iron powder produced during rolling to produce iron soap. Deposits deposited in rolling mills, coolant tanks, and pipes are called scum, and scum is composed of iron, moisture, oil, iron soap, and the like.
被圧延材料の表面品質や生産効率の改善のため、圧延機、クーラントタンク内や配管内に付着・堆積したスカムを定期的に清掃している。清掃作業には物理的に清掃を行う(例 物干しさおのような長い棒を配管内に突き刺して配管内のスカムを洗浄)ほか化学的手法として洗浄剤を用いた清掃方法がある。これまで洗浄剤として、ケロシンやガソリンといった石油系溶剤を用いた洗浄剤(特許文献１)、水酸化ナトリウムや水酸化カリウムを主成分としたアルカリ性洗浄剤(特許文献２)、石油系溶剤を界面活性剤により水に乳化させたエマルション型洗浄剤(特許文献３)を用いられてきた。 In order to improve the surface quality of the rolled material and production efficiency, we regularly clean the scum that adheres and accumulates inside the rolling mill, coolant tank, and piping. Cleaning work includes physical cleaning (for example, sticking a long stick like a clothesline into the pipe to clean the scum in the pipe) and chemical cleaning methods using detergents. So far, detergents using petroleum solvents such as kerosene and gasoline (Patent Document 1), alkaline detergents mainly composed of sodium hydroxide and potassium hydroxide (Patent Document 2), and petroleum solvents have been used as interfacial detergents. Emulsion-type detergents emulsified in water with an active agent (Patent Document 3) have been used.
石油系溶剤を用いた洗浄剤は、油性物質に対する洗浄力が高く、作業を容易にかつ効率的に洗浄を行える利点がある一方、低引火点の溶剤を用いていることから火災の危険性がある。アルカリ性洗浄剤の場合、保護具を着用する必要があるなど使用する際の危険性高い。また、アルカリ性洗浄剤を水中で用いたとき、水のｐＨが上昇するため、アルカリを構成する金属分の析出が起こる。その結果、洗浄時に析出物が堆積し、堆積物(スカム)となる。 Cleaning agents that use petroleum-based solvents have the advantage of being able to clean oily substances easily and efficiently. be. In the case of alkaline detergents, there is a high risk when using them, such as the need to wear protective equipment. Also, when an alkaline detergent is used in water, the pH of the water rises, causing precipitation of the metal components that make up the alkali. As a result, deposits accumulate during cleaning and become deposits (scum).
上記の各洗浄剤の問題点を解消するためにエマルション型洗浄剤が提案されている。エマルション型洗浄剤は、水を用いていることから、火災の危険性が低減される。しかし、洗浄性能が十分でないという問題点がある。そのため、所定の能力を満たすためには石油系溶剤を併用する必要があり、火災の危険性は解消されていない。 Emulsion-type detergents have been proposed to solve the above-mentioned problems of each detergent. Emulsion-type detergents use water, which reduces the risk of fire. However, there is a problem that the cleaning performance is not sufficient. Therefore, it is necessary to use a petroleum-based solvent together in order to satisfy the specified performance, and the risk of fire has not been eliminated.
特許文献１では、ケロシンやガソリン、ミネラルスピリットといった石油系溶剤を洗浄剤として用いられており、石油系溶剤を用いた場合、低引火点の溶剤を用いていることから、火災の危険性という問題点がある。特許文献２では、アルカリを主成分とした洗浄剤であるため、保護具を着用する必要があり、作業時の危険性が高いという問題点を有する。また、アルカリ性洗浄剤を水中で用いたとき、水のpHが上昇するため、アルカリを構成する金属分の析出が起こる。その結果、洗浄時に析出物が堆積し、堆積物(スカム)となる。特許文献３では、特許文献１および２の問題点を解決するために、石油系溶剤を界面活性剤によって水に乳化させたエマルション型洗浄剤を用いている。特許文献３のエマルション型洗浄剤を使用することで、火災の危険性や作業安全性については改善されている。しかし、石油系溶剤と水を併用していることから、火災の危険性が解消されたわけではない点、および、エマルション型洗浄剤は、石油系溶剤のみを洗浄剤として用いた場合と比較してスカムなどの油性物質に対する洗浄効果は低いという問題点がある。現状、石油系溶剤を用いず、これ以上のスカムに対する洗浄能力をもつ圧延機用洗浄剤の開発は行われてない。 In Patent Document 1, a petroleum-based solvent such as kerosene, gasoline, or mineral spirits is used as a cleaning agent, and when a petroleum-based solvent is used, a solvent with a low flash point is used, so there is a problem of fire hazards. there is a point In Patent Document 2, since the cleaning agent is mainly composed of alkali, it is necessary to wear protective equipment, and there is a problem that the work is highly dangerous. Also, when an alkaline detergent is used in water, the pH of the water rises, causing precipitation of metal components that make up the alkali. As a result, deposits accumulate during cleaning and become deposits (scum). In Patent Document 3, in order to solve the problems of Patent Documents 1 and 2, an emulsion-type detergent is used in which a petroleum-based solvent is emulsified in water using a surfactant. By using the emulsion-type cleaning agent of Patent Document 3, fire risk and work safety are improved. However, since petroleum-based solvents and water are used together, the risk of fire has not been eliminated, and the emulsion-type cleaning agent is more effective than using only petroleum-based solvents as cleaning agents. There is a problem that the cleaning effect for oily substances such as scum is low. At present, there is no development of a cleaning agent for rolling mills that does not use petroleum-based solvents and has a greater ability to clean scum.
本発明は上記の問題点を踏まえて、石油系溶剤を用いないスカム溶解剤組成物を提供し、スカムを溶解することを目的とし、以下に示す本発明を関するに至った。
１．（Ａ）ポリオキシエチレンジアルキルエーテル、ポリオキシエチレンアルキルフェノールエーテル、ポリオキシエチレン脂肪酸ジエステル、ポリオキシエチレンソルビタン脂肪酸トリエステル、ポリオキシエチレンソルビトール脂肪酸テトラエステル、ポリオキシエチレングリコールジオレート、ポリオキシアルキレンアルキルエーテルからなる群から選択される少なくとも一種のノニオン乳化剤と、
（Ｂ）シクロヘキシルアミンＥＯ付加物、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、ヤシ油脂肪酸ジエタノールアミドからなる群から選択される少なくとも一種のアミン化合物と、
（Ｃ）アルキルアミノカルボン酸型両性イオン化合物と、
（Ｄ）水 を含有することを特徴とする冷間圧延機洗浄用スカム溶解剤組成物。
In view of the above problems, the present invention provides a scum-dissolving agent composition that does not use a petroleum-based solvent and has the object of dissolving scum.
1. (A) from polyoxyethylene dialkyl ethers, polyoxyethylene alkylphenol ethers, polyoxyethylene fatty acid diesters, polyoxyethylene sorbitan fatty acid triesters, polyoxyethylene sorbitol fatty acid tetraesters, polyoxyethylene glycoldiolates, and polyoxyalkylene alkyl ethers At least one nonionic emulsifier selected from the group consisting of
(B) at least one amine compound selected from the group consisting of cyclohexylamine EO adducts, monoethanolamine, diethanolamine, triethanolamine, and coconut oil fatty acid diethanolamide;
(C) an alkylaminocarboxylic acid-type zwitterionic compound;
(D) A scum-dissolving agent composition for washing a cold rolling mill, characterized by containing water.
２．ノニオン乳化剤 （Ａ）の添加量が、スカム溶解剤組成物１００重量%に対して、５～４０重量%である項１に記載の冷間圧延機洗浄用スカム溶解剤組成物。 2. Item 2. The scum dissolver composition for washing a cold rolling mill according to Item 1, wherein the amount of the nonionic emulsifier (A) added is 5 to 40% by weight with respect to 100% by weight of the scum dissolver composition.
３．アミン化合物 (Ｂ)の添加量が、スカム溶解剤組成物１００重量%に対して、５～２０重量%である項１または２に記載の冷間圧延機洗浄用スカム溶解剤組成物。 3. Item 3. The scum dissolvent composition for washing cold rolling mills according to Item 1 or 2, wherein the amount of the amine compound (B) added is 5 to 20% by weight with respect to 100% by weight of the scum dissolvent composition.
４．アルキルアミノカルボン酸型両性イオン化合物(Ｃ)の添加量が、スカム溶解剤組成物１００重量%に対して、２．５～４０重量%である項１～３のいずれかに記載の冷間圧延機洗浄用スカム溶解剤組成物。 4. Item 4. Cold rolling according to any one of Items 1 to 3, wherein the amount of the alkylaminocarboxylic acid type zwitterionic compound (C) added is 2.5 to 40% by weight with respect to 100% by weight of the scum dissolving agent composition. A scum dissolving agent composition for machine washing.
５．水(Ｄ)の添加量が、スカム溶解剤組成物１００重量%に対して、１０重量%以上である項１～４のいずれかに記載の冷間圧延機洗浄用スカム溶解剤組成物。 5. Item 5. The scum dissolving agent composition for washing a cold rolling mill according to any one of Items 1 to 4, wherein the amount of water (D) added is 10% by weight or more based on 100% by weight of the scum dissolving agent composition.
６．さらに、（Ｅ）アルキルピリジニウムクロリド、アルキルトリメチルアンモニウム塩、ジアルキルジメチルアンモニウムクロリド、ポリアルキレンオキサイドを有する４級アンモニウム塩、Ｎ，Ｎ－ジアルキルアミノアルキレン誘導体、ポリオキシエチレン－Ｎ－アルキル-ジアミノプロパン、ポリオキシエチレンアルキルプロピレンジアミン、脂肪酸アミドアミンからなる群から選択される少なくとも一種のカチオン分散剤又は乳化剤を含有する項１～５のいずれかに記載の冷間圧延機洗浄用スカム溶解剤組成物。 6. Furthermore, (E) alkylpyridinium chloride, alkyltrimethylammonium salt, dialkyldimethylammonium chloride, quaternary ammonium salt having polyalkylene oxide, N,N-dialkylaminoalkylene derivative, polyoxyethylene-N-alkyl-diaminopropane, poly Item 6. The scum-dissolving agent composition for washing cold rolling mills according to any one of Items 1 to 5, containing at least one cationic dispersant or emulsifier selected from the group consisting of oxyethylenealkylpropylenediamines and fatty acid amidoamines.
７．カチオン分散剤又は乳化剤(Ｅ)の添加量が、スカム溶解剤組成物１００重量%に対して、２．５～２０重量%である項１～６のいずれかに記載の冷間圧延機洗浄用スカム溶解剤組成物。 7. Items 1 to 6, wherein the amount of cationic dispersant or emulsifier (E) added is 2.5 to 20% by weight with respect to 100% by weight of the scum dissolving agent composition. A scum dissolving agent composition.
８．冷間圧延機、クーラントタンクおよび配管内の洗浄時に、項１～７のいずれかに記載の冷間圧延機洗浄用スカム溶解剤組成物を希釈濃度１～１０容量%で使用する方法。 8. Item 8. A method of using the scum dissolving agent composition for cold rolling mill cleaning according to any one of items 1 to 7 at a dilution concentration of 1 to 10% by volume when cleaning the inside of the cold rolling mill, coolant tank and piping.
９．冷間圧延機、クーラントタンクおよび配管内の洗浄時に、項１～７のいずれかに記載の冷間圧延機洗浄用スカム溶解剤組成物を常温～６０℃で使用する使用方法。
である。
9. Item 8. A method of using the scum dissolving agent composition for cleaning a cold rolling mill according to any one of items 1 to 7 at room temperature to 60° C. when cleaning the inside of a cold rolling mill, a coolant tank and pipes.
is.
本発明のスカム溶解剤組成物は、石油系溶剤を用いていないため引火点を検出しない。石油系溶剤を用いなくとも製鉄所内で圧延時に生成され、圧延機、クーラントタンクおよび配管内に蓄積されたスカムを溶解・洗浄する能力をもつ。また、製鉄所内のクーラントタンクに本発明の洗浄剤組成物を用いることで、上記で述べた人手を用いた物理的に行う洗浄を行う負担が大幅に改善される。 The flash point of the scum dissolving agent composition of the present invention is not detected because it does not use a petroleum solvent. It has the ability to dissolve and clean the scum that is generated during rolling in steel mills without using petroleum-based solvents and that accumulates in rolling mills, coolant tanks, and pipes. In addition, by using the detergent composition of the present invention for coolant tanks in steelworks, the above-described burden of physically performing manual cleaning can be greatly reduced.
以下に、本発明の具体的な実施形態について、詳細に説明するが、本発明は、以下の実施形態に何ら限定されるものではなく、本発明の目的の範囲内において、適宜変更を加えて実施することができる。 Specific embodiments of the present invention will be described in detail below, but the present invention is not limited to the following embodiments, and can be modified as appropriate within the scope of the object of the present invention. can be implemented.
スカム溶解剤組成物
本発明のスカム溶解剤組成物は、
（Ａ） ポリオキシエチレンジアルキルエーテル、ポリオキシエチレンアルキルフェノールエーテル、ポリオキシエチレン脂肪酸ジエステル、ポリオキシエチレンソルビタン脂肪酸トリエステル、ポリオキシエチレンソルビトール脂肪酸テトラエステル、ポリエチレングリコールジオレート、ポリオキシアルキレンアルキルエーテルからなる群から選択される少なくとも一種のノニオン乳化剤と、
（Ｂ） シクロヘキシルアミンＥＯ付加物、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、からなる群から選択されるアルカリ化合物を水に溶解したとき、本発明のスカム溶解剤組成物のｐＨが８．０以上となる少なくとも一種のアミン化合物と、
（Ｃ） アルキルアミノカルボン酸型の両性イオン化合物を併用して、配合していることによって、特徴付けられる。
本発明のスカム溶解剤組成物は、成分（Ａ）から成分（Ｃ）、成分（Ｅ）および成分（Ｆ）を所定量で含有し、成分（Ｄ）に溶解する。
Scum-dissolving agent composition The scum-dissolving agent composition of the present invention is
(A) the group consisting of polyoxyethylene dialkyl ethers, polyoxyethylene alkylphenol ethers, polyoxyethylene fatty acid diesters, polyoxyethylene sorbitan fatty acid triesters, polyoxyethylene sorbitol fatty acid tetraesters , polyethylene glycoldiolates, and polyoxyalkylene alkyl ethers At least one nonionic emulsifier selected from
(B) When an alkaline compound selected from the group consisting of cyclohexylamine-EO adducts , monoethanolamine , diethanolamine, and triethanolamine is dissolved in water, the pH of the scum-dissolving agent composition of the present invention is 8.0 or higher. At least one amine compound that becomes
(C) It is characterized by being blended together with an alkylaminocarboxylic acid type zwitterionic compound.
The scum-dissolving agent composition of the present invention contains predetermined amounts of components (A) to (C), components (E) and components (F), and dissolves in component (D).
成分（Ａ）
成分（Ａ）は、ノニオン乳化剤が用いられる。成分（Ａ）は、本発明のスカム溶解剤組成物の原液安定性の向上とスカム中の油分を水に溶解させ乳化させる役割をもつ。本発明者は、スカム中の油分を水に溶解させ乳化させるために、ノニオン乳化剤の１種以上を用いる。また、後述する成分（Ｂ）にかかるアミン化合物を併用することで本発明のスカム溶解剤組成物の原液安定性を向上させる。
Component (A)
A nonionic emulsifier is used for component (A). Component (A) has the role of improving the stock solution stability of the scum-dissolving agent composition of the present invention and dissolving and emulsifying the oil in the scum in water. The inventor uses one or more nonionic emulsifiers to dissolve and emulsify the oil in the scum in water. Moreover, the stock solution stability of the scum-dissolving agent composition of the present invention is improved by using an amine compound related to the component (B), which will be described later.
成分（Ａ）は、ポリオキシエチレンジアルキルエーテル、ポリオキシエチレンアルキルフェノールエーテル、ポリオキシエチレン脂肪酸ジエステル、ポリオキシエチレンソルビタン脂肪酸トリエステル、ポリオキシエチレンソルビトール脂肪酸テトラエステル、ポリエチレングリコールジオレート、ポリオキシアルキレンアルキルエーテルである。 Component (A) is polyoxyethylene dialkyl ether, polyoxyethylene alkylphenol ether, polyoxyethylene fatty acid diester, polyoxyethylene sorbitan fatty acid triester, polyoxyethylene sorbitol fatty acid tetraester , polyethylene glycoldiolate, polyoxyalkylene alkyl ether. is.
成分（Ａ）の添加量は、スカム溶解剤組成物１００重量%に対して、好ましくは５～４０重量%程度であり、鉄粉分散性の点からさらに好ましくは１０～２５重量%程度である。 The amount of component (A) added is preferably about 5 to 40% by weight, more preferably about 10 to 25% by weight, based on 100% by weight of the scum dissolving agent composition, in terms of iron powder dispersibility. .
成分（Ｂ）
成分（Ｂ）はアミン化合物が用いられる。成分（Ｂ）は、本発明のスカム溶解剤組成物の原液安定性の向上とスカム中に含まれる鉄分の分散性に寄与する。本発明者は、スカム溶解剤組成物の原液安定性の向上とスカム中の鉄分を分散させるために、アルカリ化合物の１種以上を用いることを見出した。
Component (B)
An amine compound is used as the component (B). Component (B) contributes to the improvement of the stock solution stability of the scum-dissolving agent composition of the present invention and the dispersibility of the iron contained in the scum. The present inventors have found that one or more alkaline compounds are used to improve the stock solution stability of the scum-dissolving agent composition and to disperse the iron in the scum.
成分（Ｂ）は、シクロヘキシルアミンＥＯ付加物、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、ヤシ油脂肪酸ジエタノールアミドといったアミン化合物類である。 Component (B) is amine compounds such as cyclohexylamine EO adducts, monoethanolamine, diethanolamine, triethanolamine, coconut fatty acid diethanolamide.
成分（Ｂ）の添加量は、スカム溶解剤組成物１００重量%に対して、好ましくは５～２０重量%程度であり、鉄粉分散性の点では、５～１０重量%程度がより好ましく、乳化性とのバランスという点では、１０重量%程度がさらに好ましい。 The amount of component (B) to be added is preferably about 5 to 20% by weight with respect to 100% by weight of the scum dissolving agent composition, and more preferably about 5 to 10% by weight in terms of iron powder dispersibility. About 10% by weight is more preferable in terms of balance with emulsifiability.
成分（Ｃ）
成分（Ｃ）はアルキルアミノカルボン酸型両性イオン化合物である。成分（Ｃ）はラウリルアミノプロピオン酸、コカミノプロピオン酸、ラウリルアミノジプロピオン酸といったアルキルアミノカルボン酸であり、市販品としてはペトロン Ａ－９６（竹本油脂株式会社の商品名）が挙げられる。この両性イオン化合物は、スカム中に含まれる鉄分の分散性に寄与する。スカム中の鉄分の分散性の向上のため、少なくとも両性イオン化合物１種以上を用いる。
Component (C)
Component (C) is an alkylaminocarboxylic acid type zwitterionic compound. Component (C) is an alkylaminocarboxylic acid such as laurylaminopropionic acid, cocaminopropionic acid or laurylaminodipropionic acid, and commercially available products include Petron A-96 (trade name of Takemoto Yushi Co., Ltd.). This zwitterionic compound contributes to the dispersibility of the iron contained in the scum. At least one zwitterionic compound is used to improve the dispersibility of iron in the scum.
成分（Ｃ）の添加量は、スカム溶解剤組成物１００重量%に対して、好ましくは２．５～４０重量%程度であり、原液安定性の点では、１０～２０重量%程度がより好ましく、鉄粉分散性の点では、２０重量%程度がさらに好ましい。 The amount of component (C) to be added is preferably about 2.5 to 40% by weight, and more preferably about 10 to 20% by weight, based on 100% by weight of the scum dissolving agent composition. In terms of iron powder dispersibility, about 20% by weight is more preferable.
成分（Ｄ）
成分（Ｄ）は水である。成分（Ｄ）は、成分（Ａ）～（Ｃ）、成分（Ｅ）および成分（Ｆ）の各成分を可溶化させ、引火点を持たせない役割をもつ。
Component (D)
Component (D) is water. Component (D) has the role of solubilizing components (A) to (C), component (E) and component (F) and not imparting a flash point.
成分（Ｄ）は、従来からこの種のスカム溶解剤組成物に使用されてきたものを、いずれも使用できる。具体的には、イオン交換水、蒸留水、井戸水、水道水である。
成分（Ｄ）の添加量は、引火点が発生しないという点で、スカム溶解剤組成物１００重量%に対して、１０重量%以上が好ましい。
Any of those conventionally used in this type of scum-dissolving agent composition can be used as the component (D). Specifically, they are ion-exchanged water, distilled water, well water, and tap water.
The amount of component (D) to be added is preferably 10% by weight or more with respect to 100% by weight of the scum-dissolving agent composition in that the flash point does not occur.
成分（Ｅ）
成分（Ｅ）は、カチオン分散剤又は乳化剤である。成分（Ｅ）は、スカム中に含まれる鉄分の分散性に寄与する。本発明者は、スカム中の鉄分の分散性の向上のため、カチオン分散剤又は乳化剤の１種以上で用いる。
Component (E)
Component (E) is a cationic dispersant or emulsifier. Component (E) contributes to the dispersibility of iron contained in the scum. We use one or more cationic dispersants or emulsifiers to improve the dispersibility of iron in the scum.
成分（Ｅ）は、アルキルピリジニウムクロリド、アルキルトリメチルアンモニウム塩、ジアルキルジメチルアンモニウムクロリド、ポリアルキレンオキサイドを有する４級アンモニウム塩、Ｎ，Ｎ－ジアルキルアミノアルキレン誘導体、ポリオキシエチレン－Ｎ－アルキル-ジアミノプロパン、脂肪酸アミドアミンといったアミン類である。 Component (E) is an alkylpyridinium chloride, an alkyltrimethylammonium salt, a dialkyldimethylammonium chloride, a quaternary ammonium salt having a polyalkylene oxide, an N,N-dialkylaminoalkylene derivative, a polyoxyethylene-N-alkyl-diaminopropane, Amines such as fatty acid amidoamines.
成分（Ｅ）の添加量は、スカム溶解剤組成物１００重量%に対して、２．５～２０重量%程度が好ましく、鉄粉分散性の点では、１０～２０重量%程度がより好ましい。 The amount of component (E) added is preferably about 2.5 to 20% by weight, more preferably about 10 to 20% by weight, based on 100% by weight of the scum dissolving agent composition.
成分（Ｆ）
本発明のスカム溶解剤組成物には、ノニオン乳化剤、アルカリ化合物、両性イオン化合物、カチオン分散剤又は乳化剤、水に加えて、必要に応じて成分（Ｆ）として消泡剤を添加することができる。成分（Ｆ）は、本発明のスカム溶解剤組成物を製造する際の消泡に寄与する。また、本発明のスカム溶解剤組成物は消泡剤をさらに含有することが好ましい。
Component (F)
In addition to nonionic emulsifiers, alkaline compounds, zwitterionic compounds, cationic dispersants or emulsifiers, and water, the scum-dissolving agent composition of the present invention may optionally contain an antifoaming agent as component (F). . Component (F) contributes to defoaming during production of the scum-dissolving agent composition of the present invention. Moreover, the scum-dissolving agent composition of the present invention preferably further contains an antifoaming agent.
スカム溶解剤組成物のｐＨ範囲
本発明のスカム溶解剤組成物は、成分（Ｂ)を含有し、かつ成分（Ａ）および成分（Ｃ）から成分（Ｆ）の各成分を前記所定量で含有し、ｐＨが８．０以上に調整される。本発明のスカム溶解剤組成物のｐＨを制御することは、当該スカム溶解剤組成物の原液安定性の点で好ましい。前記スカム溶解剤組成物のｐＨは８．０以上が好ましい。
pH range of the scum-dissolving agent composition The scum-dissolving agent composition of the present invention contains the component (B) and each of the components (A) and (C) to (F) in the predetermined amounts. and the pH is adjusted to 8.0 or higher. Controlling the pH of the scum-dissolving agent composition of the present invention is preferable in terms of the stock solution stability of the scum-dissolving agent composition. The pH of the scum-dissolving agent composition is preferably 8.0 or higher.
スカム溶解剤組成物の使用濃度
本発明のスカム溶解剤組成物は、水に希釈させて、濃度５０容量%以上のスカム溶解剤組成物水溶液を調製し、クーラント容量に対して、濃度０．５％～１０容量%の範囲で使用する。鉄粉分散性という点で、濃度０．５～５容量%程度がより好ましい。希釈に使用する水は、イオン交換水、蒸留水、水道水、井戸水等のいずれでもよい。
Usage concentration of the scum dissolving agent composition The scum dissolving agent composition of the present invention is diluted with water to prepare an aqueous solution of the scum dissolving agent composition with a concentration of 50% by volume or more, and the concentration is 0.5 per coolant volume. % to 10% by volume. From the viewpoint of iron powder dispersibility, a concentration of about 0.5 to 5% by volume is more preferable. Water used for dilution may be ion-exchanged water, distilled water, tap water, well water, or the like.
スカム溶解剤組成物の使用方法
本発明のスカム溶解剤組成物により、冷間圧延機廻り、クーラントタンク及び配管内のスカムを効率よく洗浄除去することができる。本発明のスカム溶解剤組成物を使用するに際しては、被洗浄物である冷間圧延機廻り等 に対して、クーラントタンク内でスカム溶解剤組成物を水で希釈し、循環することでスカムを洗浄除去する。希釈濃度については、上記 スカム溶解剤組成物の使用濃度のとおりである。循環後の液は廃棄したのち、加温した水および圧延時に使用するクーラントによる共洗いを行う。
Method of using the scum-dissolving composition The scum-dissolving composition of the present invention can efficiently wash and remove scum around the cold rolling mill, coolant tanks and pipes. When using the scum dissolving agent composition of the present invention, the scum dissolving agent composition is diluted with water in a coolant tank and circulated around a cold rolling mill, which is an object to be cleaned, to remove scum. Wash off. The dilution concentration is the same as the concentration used for the scum-dissolving agent composition. After the circulating liquid is discarded, it is co-washed with heated water and the coolant used during rolling.
・スカム溶解剤の評価について
本実施形態において、スカム溶解剤の評価として、(I)原液安定性、(II)乳化性、(III)鉄粉分散性の３項目を挙げる。スカム溶解剤は、スカム中の油分を水に溶解させることで乳化分散させる。また、スカム溶解剤により、スカム中の鉄粉を液面に浮上させることで、鉄粉分散させる。
- Evaluation of scum-dissolving agent In the present embodiment, the scum-dissolving agent is evaluated on three items: (I) stock solution stability, (II) emulsifiability, and (III) iron powder dispersibility. The scum-dissolving agent emulsifies and disperses the oil in the scum by dissolving it in water. Moreover, the iron powder in the scum is made to float to the liquid surface by the scum dissolving agent, thereby dispersing the iron powder.
(I)原液安定性は、スカム溶解剤組成物を作製した直後と静置したときの組成物の状態変化について観察する。このとき、原液に変化がない場合、原液安定性が高いものとする。 (I) Undiluted solution stability is observed for changes in the state of the composition immediately after preparation of the scum-dissolving agent composition and when the composition is allowed to stand. At this time, when there is no change in the stock solution, it is assumed that the stock solution stability is high.
(II)乳化性は、蒸留水にスカム及びスカム溶解剤組成物を添加し、攪拌・静置したときの液の変化について観察する。このとき、液が白く乳化したのは、スカム中の油分が蒸留水に溶解したことに起因するので、乳化性に優れているものとする。すなわち、スカム分散性に優れているといえる。 (II) Emulsifiability is measured by adding scum and a scum-dissolving agent composition to distilled water, and observing changes in the liquid when the mixture is stirred and allowed to stand still. At this time, the reason why the liquid was emulsified white is that the oil in the scum was dissolved in the distilled water, so the emulsifiability should be excellent. That is, it can be said that the scum dispersibility is excellent.
(III)鉄粉分散性は、(II)の操作を行ったとき、液面のスカムの分散形状の変化について観察する。このとき、スカムの形状が塊状から粉末状に変化したものを鉄粉分散性が高いものとする。すなわち、スカム分散性に優れているといえる。 (III) Iron powder dispersibility is observed by observing the change in the shape of the dispersed scum on the liquid surface when the operation of (II) is performed. At this time, when the shape of the scum changes from lumpy to powdery, the iron powder dispersibility is high. That is, it can be said that the scum dispersibility is excellent.
以下に、実施例によって本発明を具体的に説明するが、本発明は以下の記載によって限定されない。 EXAMPLES The present invention will be specifically described below with reference to Examples, but the present invention is not limited by the following description.
本実施例にあたり、使用したスカムの組成を次に示す。なお、本スカムは、冷間圧延しているクーラントの配管内から採取している。
・水分（２８．２％）
・油分（５８．１％）
うち、油分中の鉄分（０．０７％）
・鉄分（１．２％）
・その他（１２．３％）
The composition of the scum used in this example is shown below. In addition, this scum was collected from the inside of the coolant pipe during cold rolling.
・Moisture content (28.2%)
・Oil content (58.1%)
Of which, iron content in oil (0.07%)
・ Iron content (1.2%)
・Other (12.3%)
スカム溶解剤組成物については、上記で述べたように、ノニオン乳化剤、両性イオン化合物、アミン化合物、カチオン分散剤または乳化剤、消泡剤、水により構成されている。各添加剤の種類や配合量を組み合わせることで、スカム溶解剤組成物（実施例１～３、５、６、９～１６、参考例４、７、８）を作製する。 As described above, the scum dissolving agent composition is composed of a nonionic emulsifier, a zwitterionic compound, an amine compound, a cationic dispersant or emulsifier, an antifoaming agent, and water. A scum dissolving agent composition ( Examples 1 to 3, 5, 6, 9 to 16, Reference Examples 4, 7 and 8) is produced by combining the types and blending amounts of each additive.
スカム溶解剤組成物を作製したのち、組成物のｐＨを株式会社 堀場製作所製のｐＨメータ Ｆ－５４を用いて測定する。その後、２４時間静置する。このとき、作製直後と静置後の原液の変化について観察する。((I)原液安定性の評価)。次に、スカム溶解剤組成物のスカム溶解能の評価を行う。常温下において、蒸留水５００ｍＬにスカム５ｇ添加しガラス棒で攪拌・静置する。さらに、スカム溶解剤組成物５ｇ(蒸留水に対して１％のスカム溶解剤組成物)加え、同様に攪拌し２ｈ静置する。このとき、スカム溶解剤組成物の添加前後でのビーカー内の液((II)乳化性の評価)およびスカムの形状の変化((III)鉄粉分散性の評価)について観察する。 After preparing the scum dissolving agent composition, the pH of the composition is measured using a pH meter F-54 manufactured by HORIBA, Ltd. It is then left to stand for 24 hours. At this time, the change in the undiluted solution immediately after preparation and after standing is observed. ((I) Stock solution stability evaluation). Next, the scum-dissolving ability of the scum-dissolving agent composition is evaluated. At room temperature, 5 g of scum is added to 500 mL of distilled water, stirred with a glass rod, and allowed to stand. Further, 5 g of a scum dissolving agent composition (1% scum dissolving agent composition in distilled water) is added, stirred in the same manner, and allowed to stand for 2 hours. At this time, the liquid in the beaker ((II) evaluation of emulsifiability) and the change in the shape of scum ((III) evaluation of iron powder dispersibility) before and after the addition of the scum-dissolving agent composition are observed.
同様の実験を、常温下だけではなく、４０℃及び６０℃においても行い、スカム溶解剤組成物の温度依存性について評価する。また、スカム溶解剤組成物の蒸留水に対しての添加濃度を、１％以外にも０％、０．５％、３％、５％、１０％でそれぞれ同様の実験を行い、濃度依存性についても評価する。 A similar experiment is conducted not only at room temperature but also at 40° C. and 60° C. to evaluate the temperature dependence of the scum dissolving agent composition. In addition, similar experiments were conducted with the addition concentration of the scum dissolving agent composition to distilled water other than 1%, 0%, 0.5%, 3%, 5%, and 10%. is also evaluated.
表１および表２に示す実施例１～３、５、６、９～１６、参考例４、７、８について、(I)原液安定性、(II)乳化性、(III)鉄粉分散性、の評価を行った。評価試験の結果もまた表１および表２に示す。 Regarding Examples 1 to 3, 5, 6, 9 to 16 and Reference Examples 4 , 7, and 8 shown in Tables 1 and 2, (I) stock solution stability, (II) emulsifiability, and (III) iron powder dispersibility , was evaluated. The results of evaluation tests are also shown in Tables 1 and 2.
評価試験の結果については、目視により、各項目５点満点、総合１５点満点とする。〇を５点、〇～△を４．５点、△を４点、△△を３点、×を２点、××を１点、とし、評点をつける。後述する比較例１および２と比べて、実施例の評点が１２点以上と高い場合、比較例以上のスカム溶解能を有するスカム溶解剤組成物であるといえる。 The results of the evaluation test are visually evaluated with a maximum score of 5 points for each item and a total of 15 points. ◯ is 5 points, ◯ to △ is 4.5 points, △ is 4 points, △△ is 3 points, × is 2 points, and XX is 1 point. A scum-dissolving agent composition having a scum-dissolving ability equal to or higher than that of Comparative Examples can be said to have a higher score of 12 points or more than Comparative Examples 1 and 2, which will be described later.
・実施例１５
(II)乳化性/(III)鉄粉分散性の温度および濃度に対する影響
実施例１５の(II)乳化性および(III)鉄粉分散性によるスカム溶解能の評価に関して、常温下のほか、４０℃および６０℃においても、(I)原液安定性、(II)乳化性、(III)鉄粉分散性の評価を行った。結果を表３に示す。また、常温下において、実施例 １５の濃度を１％のほか、０％、０．５％、３％、５％、１０％においても、(I)原液安定性、(II)乳化性、(III)鉄粉分散性の評価を行った。結果を表４に示す。
・Example 15
(II) Emulsifiability/(III) Iron powder dispersibility effect on temperature and concentration Regarding the evaluation of scum dissolving ability by (II) emulsifiability and (III) iron powder dispersibility in Example 15, in addition to room temperature, 40 (I) stock solution stability, (II) emulsifiability, and (III) iron powder dispersibility were also evaluated at ℃ and 60℃. Table 3 shows the results. In addition, at room temperature, in addition to the concentration of 1% in Example 15, even at 0%, 0.5%, 3%, 5%, and 10%, (I) stock solution stability, (II) emulsifiability, ( III) The dispersibility of iron powder was evaluated. Table 4 shows the results.
評価試験の結果については、上記と同様の方法により評点をつける。 The evaluation test results are scored in the same manner as above.
実施例１５では、(I)原液安定性、(II)乳化性、(III)鉄粉分散性の３点について優れた結果が見出された。また、実施例１５を用いて、スカム添加したものに溶解剤を添加するときの蒸留水の温度がスカム溶解性に影響を及ぼす温度について評価したところ、常温、40℃、60℃と高温になるにしたがって鉄粉分散性が低下することが見いだされた。さらに、スカム溶解剤の希釈濃度依存性を評価したところ、０．５％と５％が同等の分散性を示した。その後、５％、１０％と濃度を上げていくと、鉄粉分散性は低下する傾向がみられた。０．５％から５％の使用が最も好ましい。 In Example 15, excellent results were found with regard to (I) stock solution stability, (II) emulsifiability, and (III) iron powder dispersibility. In addition, using Example 15, when the temperature of distilled water when adding a dissolving agent to a scum-added product was evaluated for the temperature that affects the solubility of scum, the results were as high as normal temperature, 40 ° C., and 60 ° C. It was found that the iron powder dispersibility decreased according to the Furthermore, when the dilution concentration dependence of the scum dissolving agent was evaluated, 0.5% and 5% showed equivalent dispersibility. After that, when the concentration was increased to 5% and 10%, the dispersibility of iron powder tended to decrease. Most preferred is the use of 0.5% to 5%.
表５に示す比較例１および２について、(I)原液安定性、(II)乳化性、(III)鉄粉分散性、の評価を行った。なお、比較例２については、原液をイオン交換水で３％に希釈した液を用いて評価した。評価試験の結果もまた表５に示す。表６に示すスカム溶解剤組成物を作製した。作製した組成物については、比較例１および２と同様に(I)原液安定性、(II)乳化性、(III)鉄粉分散性の評価を行った。評価試験の結果もまた表６に示す。 Comparative Examples 1 and 2 shown in Table 5 were evaluated for (I) stock solution stability, (II) emulsifiability, and (III) iron powder dispersibility. Comparative Example 2 was evaluated using a solution obtained by diluting the undiluted solution with deionized water to 3%. The evaluation test results are also shown in Table 5. A scum dissolving agent composition shown in Table 6 was prepared. As in Comparative Examples 1 and 2, the prepared compositions were evaluated for (I) undiluted solution stability, (II) emulsifiability, and (III) iron powder dispersibility. The evaluation test results are also shown in Table 6.
比較例１は大同化学株式会社製の水系洗浄剤、比較例２は大同化学製の油系洗浄剤をそれぞれ用いた。 Comparative Example 1 used a water-based cleaning agent manufactured by Daido Chemical Co., Ltd., and Comparative Example 2 used an oil-based cleaning agent manufactured by Daido Chemical Co., Ltd., respectively.
評価試験の結果については、目視により、各項目５点満点、総合１５点満点とする。〇を５点、〇～△を４．５点、△を４点、△△を３点、×を２点、××を１点、とし、評点をつける。 The results of the evaluation test are visually evaluated with a maximum score of 5 points for each item and a total of 15 points. ◯ is 5 points, ◯ to △ is 4.5 points, △ is 4 points, △△ is 3 points, × is 2 points, and XX is 1 point.
なお、表１、表２、及び表６のカチオン分散剤と乳化剤、ノニオン乳化剤、両性イオン化合物、アミン化合物、消泡剤は次のものを意味する。なお、ＥＯはエチレンオキサイド基を示す。 The cationic dispersants, emulsifiers, nonionic emulsifiers, amphoteric compounds, amine compounds, and antifoaming agents in Tables 1, 2, and 6 mean the following. EO represents an ethylene oxide group.
・カチオン分散剤と乳化剤
カチオンＡ・・・Ｎ,Ｎ－ジアルキルアミノアルキレン誘導体
カチオンＢ・・・ポリオキシエチレンアルキルプロピレンジアミン
・Cationic dispersant and emulsifier Cation A: N,N-dialkylaminoalkylene derivative Cation B: Polyoxyethylene alkylpropylene diamine
・ノニオン乳化剤
ノニオンＡ・・・ポリエチレングリコールジオレート
ノニオンＢ・・・ポリオキシアルキレンアルキルエーテル
・Nonionic emulsifier Nonionic A: Polyethylene glycol diolate
nonionic B: polyoxyalkylene alkyl ether
・両性イオン化合物
化合物Ａ・・・・竹本油脂株式会社 ペトロンＡ－９６
・Zwitterionic compound Compound A・・・Takemoto Oil Co., Ltd. Petron A-96
・アミン化合物
アミン系Ａ・・・シクロヘキシルアミン（ＥＯ ２モル）
- Amine compound Amine type A: cyclohexylamine (EO 2 mol)
・消泡剤
消泡剤Ａ・・・サンノプコ株式会社製 ノプコ ＮＤＷ
・Antifoaming agent Antifoaming agent A: Nopco NDW manufactured by San Nopco Co., Ltd.
なお、表５のノニオン乳化剤、アミン化合物、エーテル化合物、鉱物油、キレート化剤、消泡剤は次のものを意味する。 The nonionic emulsifier, amine compound, ether compound, mineral oil, chelating agent, and antifoaming agent in Table 5 mean the following.
・ノニオン乳化剤
ノニオンＣ・・・ポリオキシエチレンノニルフェニルエーテル（ＥＯ約１０モル）
ノニオンＤ・・・ポリオキシエチレンノニルフェニルエーテル（ＥＯ約６モル）
ノニオンＥ・・・ポリオキシエチレンアルキルエーテル
ノニオンＦ・・・ポリオキシアルキレンデシルエーテル
・ Nonionic emulsifier Nonionic C ... polyoxyethylene nonylphenyl ether (about 10 mol of EO)
Nonion D: Polyoxyethylene nonylphenyl ether (about 6 mol of EO)
Nonion E: Polyoxyethylene alkyl ether Nonion F: Polyoxyalkylene decyl ether
・アミン化合物
アミン系Ｂ・・・ポリオキシエチレンステアリルアミン
アミン系Ｃ・・・ヤシ油脂肪酸ジエタノールアミド
・Amine compound Amine type B: polyoxyethylene stearylamine Amine type C: coconut oil fatty acid diethanolamide
・エーテル化合物
エーテルＡ・・・ジエチレングリコールモノ２－エチルヘキシルエーテル
・ Ether compound ether A ... diethylene glycol mono-2-ethylhexyl ether
・鉱物油
鉱物油Ａ・・・ＥＮＥＯＳ株式会社製 クレンゾルＨＳ
鉱物油Ｂ・・・出光興産株式会社製 出光灯油
・ Mineral oil Mineral oil A: Cleansol HS manufactured by ENEOS Co., Ltd.
Mineral oil B: Idemitsu kerosene manufactured by Idemitsu Kosan Co., Ltd.
・キレート化剤
キレートＡ・・・エチレンジアミン四酢酸二ナトリウム二水塩
・Chelating agent Chelate A: disodium ethylenediaminetetraacetic acid dihydrate
・消泡剤
消泡剤Ｂ・・・東レ・ダウコーニング株式会社製 DOW CORNING TORAY FS ANTIFOAM 544 COMPOUND
・Antifoaming agent Antifoaming agent B: DOW CORNING TORAY FS ANTIFOAM 544 COMPOUND manufactured by Dow Corning Toray Co., Ltd.
表５の比較例のスカム溶解剤組成物は、組成物に含有される成分やその添加量が不満足であるため、乳化性および鉄粉分散性が著しく低下した。その結果、スカムに対する洗浄能力が低下した。一方、表１・２および６の結果より、実施例において作製したスカム溶解剤組成物は、評点が１２点以上であり、原液安定性、乳化性、および鉄粉分散性に優れていることを見出した。よって、本発明のスカム溶解剤組成物は、圧延機、クーラントタンクおよび配管内に堆積するスカムを洗浄する能力をもつ。
The scum dissolving agent compositions of the comparative examples shown in Table 5 were unsatisfactory in terms of the components contained in the composition and the amount thereof added, so that emulsifiability and iron powder dispersibility were remarkably lowered. As a result, the ability to clean scum decreased. On the other hand, from the results in Tables 1, 2 and 6, the scum-dissolving agent compositions prepared in Examples had scores of 12 points or more, indicating that they were excellent in stock solution stability, emulsifiability, and iron powder dispersibility. Found it. Thus, the scum dissolver composition of the present invention has the ability to clean scum that builds up in rolling mills, coolant tanks and piping.
Claims (7)
（Ｂ） シクロヘキシルアミンＥＯ付加物、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、からなる群から選択される少なくとも一種のアミン化合物と、
（Ｃ） ラウリルアミノプロピオン酸、コカミノプロピオン酸、ラウリルアミノジプロピオン酸、ペトロン Ａ－９６（竹本油脂株式会社の商品名）からなる群から選択される少なくとも一種のアルキルアミノカルボン酸型両性イオン化合物と、
（Ｄ） 水
を含有し、
ノニオン乳化剤 （Ａ）の添加量が、スカム溶解剤組成物１００重量%に対して、１０～４０重量%であり、
両性イオン化合物（Ｃ）の添加量が、スカム溶解剤組成物１００重量%に対して、１０～４０重量%であることを特徴とする冷間圧延機洗浄用スカム溶解剤組成物。 (A) the group consisting of polyoxyethylene dialkyl ethers, polyoxyethylene alkylphenol ethers, polyoxyethylene fatty acid diesters, polyoxyethylene sorbitan fatty acid triesters, polyoxyethylene sorbitol fatty acid tetraesters, polyethylene glycoldiolates , and polyoxyalkylene alkyl ethers At least one nonionic emulsifier selected from
(B) at least one amine compound selected from the group consisting of cyclohexylamine EO adducts, monoethanolamine , diethanolamine, and triethanolamine;
(C) at least one alkylaminocarboxylic acid-type zwitterionic compound selected from the group consisting of laurylaminopropionic acid, cocaminopropionic acid, laurylaminodipropionic acid, and Petron A-96 (trade name of Takemoto Yushi Co., Ltd.); When,
(D) contains water;
The amount of the nonionic emulsifier (A) added is 10 to 40% by weight with respect to 100% by weight of the scum dissolving agent composition,
A scum dissolving composition for washing a cold rolling mill, characterized in that the amount of the zwitterionic compound (C) added is 10 to 40% by weight with respect to 100% by weight of the scum dissolving composition.
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| JP2002180088A (en) | 2000-12-14 | 2002-06-26 | Nicca Chemical Co Ltd | Surfactant, detergent and method of washing |
| JP2002179643A (en) | 2000-12-14 | 2002-06-26 | Nicca Chemical Co Ltd | Surfactant, detergent and cleaning method |
| JP2005146004A (en) | 2003-11-11 | 2005-06-09 | Nicca Chemical Co Ltd | Rust-preventive, oil-separating detergent composition and washing method |
| JP2011132302A (en) | 2009-12-22 | 2011-07-07 | Kao Corp | Detergent composition for perimeter of rolling mill |
| JP2016094596A (en) | 2014-11-10 | 2016-05-26 | 三洋化成工業株式会社 | Hard surface treatment agent |
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| JP2002180088A (en) | 2000-12-14 | 2002-06-26 | Nicca Chemical Co Ltd | Surfactant, detergent and method of washing |
| JP2002179643A (en) | 2000-12-14 | 2002-06-26 | Nicca Chemical Co Ltd | Surfactant, detergent and cleaning method |
| JP2005146004A (en) | 2003-11-11 | 2005-06-09 | Nicca Chemical Co Ltd | Rust-preventive, oil-separating detergent composition and washing method |
| JP2011132302A (en) | 2009-12-22 | 2011-07-07 | Kao Corp | Detergent composition for perimeter of rolling mill |
| JP2016094596A (en) | 2014-11-10 | 2016-05-26 | 三洋化成工業株式会社 | Hard surface treatment agent |
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