JPH01198694A - Lubricating oil for alkane refrigerant containing fluorine - Google Patents
Lubricating oil for alkane refrigerant containing fluorineInfo
- Publication number
- JPH01198694A JPH01198694A JP63270835A JP27083588A JPH01198694A JP H01198694 A JPH01198694 A JP H01198694A JP 63270835 A JP63270835 A JP 63270835A JP 27083588 A JP27083588 A JP 27083588A JP H01198694 A JPH01198694 A JP H01198694A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- polyglycol
- freon
- water content
- fluorine
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 20
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 17
- 150000001335 aliphatic alkanes Chemical class 0.000 title claims description 9
- 239000011737 fluorine Substances 0.000 title claims description 9
- 229910052731 fluorine Inorganic materials 0.000 title claims description 9
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title 1
- 229920000151 polyglycol Polymers 0.000 claims abstract description 24
- 239000010695 polyglycol Substances 0.000 claims abstract description 24
- 150000001875 compounds Chemical class 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 5
- 125000002252 acyl group Chemical group 0.000 claims abstract description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 150000002430 hydrocarbons Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052802 copper Inorganic materials 0.000 abstract description 9
- 239000010949 copper Substances 0.000 abstract description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract description 6
- 238000007747 plating Methods 0.000 abstract description 6
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 6
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 4
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 4
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- BHNZEZWIUMJCGF-UHFFFAOYSA-N 1-chloro-1,1-difluoroethane Chemical compound CC(F)(F)Cl BHNZEZWIUMJCGF-UHFFFAOYSA-N 0.000 description 2
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- -1 fluorocarbon compounds Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はフッ素含有アルカン冷媒用潤滑油に関し、詳し
くは低水分含量のポリグリコール系化合物を主成分とし
、フッ素含有アルカンを冷媒とする冷凍機等の潤滑剤と
して好適な潤滑油に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lubricating oil for a fluorine-containing alkane refrigerant, and more specifically, a lubricating oil for a fluorine-containing alkane refrigerant, and more specifically, a lubricating oil for a refrigeration machine containing a polyglycol compound with a low water content as a main component and using a fluorine-containing alkane as a refrigerant. The present invention relates to a lubricating oil suitable as a lubricant such as the like.
〔従来の技術及び発明が解決しようとする課題〕従来か
ら、ポリグリコール系化合物は冷凍機等の潤滑油などと
として利用されているが、冷媒、特に難燃性冷媒との相
溶性が不充分である。また、このポリグリコール系化合
物を冷凍機油等として用いた場合に、冷凍機内の鉄表面
に銅メツキ現象（銅配管から溶出した銅が鉄表面を覆う
現象）が発生するため、ベーンや軸受等における作動不
良を引き起こすおそれがある。[Prior art and problems to be solved by the invention] Polyglycol compounds have traditionally been used as lubricating oils for refrigerators, etc., but their compatibility with refrigerants, especially flame-retardant refrigerants, is insufficient. It is. In addition, when this polyglycol compound is used as refrigerating machine oil, copper plating phenomenon (a phenomenon in which copper eluted from copper piping covers the iron surface) occurs on the iron surface inside the refrigerating machine. It may cause malfunction.
そこで、本発明者は上記従来のポリグリコール系化合物
の欠点を解消し、冷凍機油等として好適な性状を有する
ポリグリコール系化合物を開発すべ（鋭意研究を重ねた
。Therefore, the inventors of the present invention have conducted intensive research to overcome the drawbacks of the conventional polyglycol compounds and to develop a polyglycol compound having properties suitable for refrigerating machine oil and the like.
その研究過程において、上述した銅メツキ現象は、ポリ
グリコール系化合物中の水分に起因することを見出した
。本発明者はこの知見に基いてさらに研究を続けたとこ
ろ、水分含量が少ないポリグリコール系化合物は、上述
した如き銅メツキ現象を引き起こすおそれがないと同時
に、冷凍機等の冷媒として用いられる各種の冷媒、特に
フッ素含有アルカン（以下、フロン化合物とも言う。）
に対して相溶性が良好であることを見出した。本発明は
このような研究の結果として完成したものである。In the course of the research, it was discovered that the copper plating phenomenon described above is caused by moisture in the polyglycol compound. Based on this knowledge, the inventor continued research and found that polyglycol compounds with low water content do not cause the copper plating phenomenon described above, and are suitable for various types of refrigerants used as refrigerants in refrigerators, etc. Refrigerants, especially fluorine-containing alkanes (hereinafter also referred to as fluorocarbon compounds)
It was found that the compatibility was good. The present invention was completed as a result of such research.
すなわち、本発明は４０℃における動粘度が５ＣＳｔ以
上であるとともに、粘度指数が７０以上であり、かつ水
分含有量が２００ ｐｐｍ以下であるポリグリコール系
化合物を主成分とするフッ素含有アルカン冷媒用潤滑油
を提供するものである。That is, the present invention provides a lubricant for a fluorine-containing alkane refrigerant that is mainly composed of a polyglycol compound that has a kinematic viscosity at 40° C. of 5 CSt or more, a viscosity index of 70 or more, and a water content of 200 ppm or less. It provides oil.
本発明の潤滑油は、ポリグリコール系化合物を主成分と
するものであるが、このポリグリコール系化合物は、動
粘度が５ｃＳｔ以上、好ましくは５〜８００ｃＳｔ、さ
らに好ましくは６〜２００ｃＳｔ、最も好ましくは８〜
１５０ｃＳｔのものである。ここで動粘度が５ｃＳｔ未
溝のものでは、蒸発による油消費量が多く、あるいは油
循環量が多く、さらにシール性が悪いという問題がある
。また、このポリグリコール系化合物の粘度指数は７０
以上であり、好ましくは８０以上、特に好ましくは１０
０以上のものである。粘度指数が１００未満のものでは
、高温での潤滑性が低下するという問題が生ずる。The lubricating oil of the present invention is mainly composed of a polyglycol compound, and the polyglycol compound has a kinematic viscosity of 5 cSt or more, preferably 5 to 800 cSt, more preferably 6 to 200 cSt, and most preferably 8～
It is of 150 cSt. If the kinematic viscosity is 5 cSt and there are no grooves, there are problems in that the amount of oil consumed due to evaporation is large, or the amount of oil circulated is large, and furthermore, the sealing performance is poor. In addition, the viscosity index of this polyglycol compound is 70
or more, preferably 80 or more, particularly preferably 10
It is 0 or more. If the viscosity index is less than 100, a problem arises in that the lubricity at high temperatures decreases.
このような性状を有するポリグリコール系化合物として
は、様々なものがあるが、好ましくは一般式
％式％（１）
で表わされるポリグリコール、ポリグリコールエーテル
あるいはポリグリコールエステルである。There are various polyglycol compounds having such properties, but polyglycols, polyglycol ethers, and polyglycol esters represented by the general formula % (1) are preferred.
式中、Ｒ１およびＲ３はそれぞれ水素、炭素数１〜２０
（好ましくは１〜１０）の炭化水素基（好ましくはアル
キル基）またはアシル基を示し、Ｒ２は炭素数２〜４の
直鎖アルキレン基または分岐アルキレン基を示す。また
、ｎは５以上、好ましくは５〜６０、さらに好ましくは
５〜３０、最も好ましくは５〜２５の数を示す。なお、
ｎ個のＲｚはそれぞれ同一でも異なってもよい。In the formula, R1 and R3 are each hydrogen and have 1 to 20 carbon atoms.
(preferably 1 to 10) hydrocarbon group (preferably an alkyl group) or acyl group, and R2 represents a straight chain alkylene group or branched alkylene group having 2 to 4 carbon atoms. Further, n represents a number of 5 or more, preferably 5 to 60, more preferably 5 to 30, and most preferably 5 to 25. In addition,
The n Rz may be the same or different.
更に、本発明のポリグリコール系化合物は、水分含有量
が２００ｐｐｍ以下でなければならず、好ましくは１１
００ｐｐ以下である。ここで、水分含有量が２００ ｐ
ｐｍを超えるものでは、上述した如き銅メツキ現象を引
き起こすおそれがある。このような、低水分含量のポリ
グリコール系化合物を得るにあたっては、上述した如き
一般式（１）のポリグリコール系化合物を、真空加熱処
理やシリカゲル、活性アルミナ、ゼオライト等と接触処
理するとよい。特に好ましくは、粒径０．１〜１０鰭、
好ましくは０．２〜５ＩＩＩ１１のゼオライト（天然ゼ
オライトあるいはモレキュラーシープス３Ａ。Furthermore, the polyglycol compound of the present invention must have a moisture content of 200 ppm or less, preferably 11 ppm or less.
00pp or less. Here, the water content is 200 p
If it exceeds pm, there is a risk of causing the above-mentioned copper plating phenomenon. In order to obtain such a polyglycol compound with a low water content, the polyglycol compound of general formula (1) as described above is preferably subjected to a vacuum heat treatment or a contact treatment with silica gel, activated alumina, zeolite, etc. Particularly preferably, particle size 0.1 to 10 fins,
Preferably 0.2 to 5III11 zeolite (natural zeolite or Molecular Sheeps 3A).
４Ａ、５Ａ、１３Ｘ等の合成ゼオライト）と接触処理す
ればよい。この際の接触条件は特に制限はなく、各種状
況に応じて定めればよい。また、必要に応じて接触処理
に際して１０〜５０ＫＨｚの超音波を照射するとさらに
脱水効率が向上する。Synthetic zeolites such as 4A, 5A, 13X, etc.) may be contacted with the zeolite. The contact conditions at this time are not particularly limited and may be determined depending on various situations. Further, if necessary, irradiation with ultrasonic waves of 10 to 50 KHz during the contact treatment further improves the dehydration efficiency.
このようにして得た低水分含量のポリグリコール系化合
物は、吸水性を有するため、なるべく水分を遮断した条
件下に保管しておくことが好ましい。ここで、簡便かつ
有効な保管方法としては、ゼオライトをそのままあるい
は酸化マグネシウム等のバインダーで固めて成形したも
のを内蔵した密封容器に収納して保管する方法をあげる
ことができる。Since the polyglycol compound with a low water content obtained in this way has water absorbing properties, it is preferable to store it under conditions where moisture is blocked as much as possible. Here, a simple and effective storage method is to store zeolite as it is or after solidifying it with a binder such as magnesium oxide and molding it in a sealed container.
本発明の潤滑油は、このようにして得られた低水分含量
のポリグリコール系化合物を主成分とするものであるが
、さらに必要に応じて摩耗防止剤。The lubricating oil of the present invention is mainly composed of the thus obtained polyglycol compound with a low water content, and further contains an anti-wear agent as required.
塩素捕捉剤、酸化防止剤、金属不活性化剤、消泡剤等を
適量配合すことも有効である。ここで、塩素捕捉剤とし
ては各種のものがあるが、トリフェニルホスファイト
トリクレジルホスファイト等の亜リン酸エステル系化合
物を好適なものとしてあげることができ、これを０．０
０１〜０．５重量％の割合で添加すればよい。It is also effective to incorporate appropriate amounts of chlorine scavengers, antioxidants, metal deactivators, antifoaming agents, and the like. There are various types of chlorine scavengers, but triphenyl phosphite
Preferred examples include phosphite ester compounds such as tricresyl phosphite;
It may be added in a proportion of 0.01 to 0.5% by weight.
本発明の潤滑油は、フロン化合物を冷媒とじて用いる冷
凍機、クーラー、ヒートポンプ等の潤滑剤として有効で
あるが、ここで冷媒であるフロン化合物としては、トリ
クロロモノフルオロメタン（フロン−１１）、ジクロロ
ジフルオロメタン（フロン−１２）をはじめとして、各
種のものがある。本発明の潤滑油は、これらフロン−１
１゜フロン−１２以外に、通常の潤滑油では難溶性とさ
れる水素含有フロンやパーフルオロアルカンに対しても
良好な相溶性を示す。ここで、水素含有フロンとしては
、１．１−ジクロロ−２，２，２−トリフルオロエタン
（フロン−１２３）ｉｌ。The lubricating oil of the present invention is effective as a lubricant for refrigerators, coolers, heat pumps, etc. that use fluorocarbon compounds as refrigerants, but the fluorocarbon compounds used as refrigerants include trichloromonofluoromethane (Freon-11), There are various types including dichlorodifluoromethane (Freon-12). The lubricating oil of the present invention has these Freon-1
In addition to 1° Freon-12, it also shows good compatibility with hydrogen-containing Freon and perfluoroalkane, which are poorly soluble in ordinary lubricating oils. Here, the hydrogen-containing fluorocarbon is 1,1-dichloro-2,2,2-trifluoroethane (fluorocarbon-123)il.
１．１．２−テトラフルオロエタン（フロン−１３４ａ
）；１−クロロ−１，１−ジフルオロエタン（フロン−
１４２ｂ）；１．１−ジフルオロエタン（フロン−１５
２ａ）；）リフルオロメタン（フロン−２３）あるいは
モノクロロジフルオロメタン（フロン−２２）があげら
れる。また、パーフルオロアルカンとしては、１，１，
１，２゜２．２−へキサフルオロエタン（フロン−１１
６）；テトラフルオロメタン（フロン−１４）等があげ
られる。1.1.2-Tetrafluoroethane (Freon-134a
); 1-chloro-1,1-difluoroethane (fluorocarbon-
142b); 1,1-difluoroethane (Freon-15
2a);) Lifluoromethane (Freon-23) or monochlorodifluoromethane (Freon-22) can be mentioned. In addition, perfluoroalkanes include 1,1,
1,2゜2.2-hexafluoroethane (Freon-11
6); Examples include tetrafluoromethane (Freon-14).
〔実施例］
次に、本発明を実施例、比較例および参考例により更に
詳しく説明する。[Examples] Next, the present invention will be explained in more detail with reference to Examples, Comparative Examples, and Reference Examples.
実施例１〜４．比較例１〜３および参考例１〜４第４表
に示す鉱油、アルキルベンゼンあるいはポリグリコール
を試料として下記の方法にしたがってその性能評価を行
った。結果を第２表に示す。Examples 1-4. Comparative Examples 1 to 3 and Reference Examples 1 to 4 The mineral oils, alkylbenzenes, or polyglycols shown in Table 4 were used as samples to evaluate their performance according to the following method. The results are shown in Table 2.
フロン−２２との二層分離温度
試料とフロン−２２を２二８（重量）で混合し、二層に
分離する温度を測定した。Two-layer separation temperature with Freon-22 The sample and Freon-22 were mixed at 228 (by weight), and the temperature at which they separated into two layers was measured.
フロン−１３４ａとの二層分離温度
試料とフロン−１３４ａを２二８（重量）で混合し、二
層に分離する温度を低温側と高温側で測定した。Two-layer separation temperature with Freon-134a The sample and Freon-134a were mixed at 228 (by weight), and the temperature at which they separated into two layers was measured on the low-temperature side and the high-temperature side.
ファレックス焼付試験
ＡＳＴＭ Ｄ ３２３３に準拠し、焼付荷重（ポンド
）で評価した。Falex Seizure Test Based on ASTM D 3233, the evaluation was based on the seizing load (pounds).
シールドチューブ試験
試料とフロン−２２との２：１（重量）混合物を鉄、銅
、アルミニウムの触媒とともに、ガラス管に封入し、１
７５℃において７２０時間加熱後、その外観ならびに析
出物の有無を測定した。A 2:1 (by weight) mixture of shielded tube test sample and Freon-22 was sealed in a glass tube along with iron, copper, and aluminum catalysts.
After heating at 75° C. for 720 hours, the appearance and presence or absence of precipitates were measured.
蒸発性試験
ＪＩＳ−Ｃ−２３２０に準拠して、試料２０ｇをビーカ
ーに採取し、１４０℃１２４時間加熱後、その蒸発減量
（重量％）を測定した。Evaporability test In accordance with JIS-C-2320, 20 g of a sample was collected in a beaker, heated at 140° C. for 124 hours, and then its evaporation loss (weight %) was measured.
（以下余白）
〔発明の効果］
以上の如く、本発明の潤滑油は、フロン（即ちフッ素含
有アルカン）冷媒下での安定性が良好であって、銅メツ
キ現象等のトラブルを起こすおそれがなく、しかもフロ
ン−１１，フロン−１２のみならず、水素含有フロン化
合物やパーフルオロアルカンなどの難溶性冷媒に対して
も二層分離温度が低く、相溶性が良好である。特に、フ
ロン−１３４ａのような極難溶性冷媒に対する低温側の
二層分離温度が低く、高温側の二層分離温度が高いので
、この種の冷媒に有用である。また耐焼付性が高く、蒸
発による油消費量も少なく、油循環量も少なくすること
ができる。(The following is a blank space) [Effects of the Invention] As described above, the lubricating oil of the present invention has good stability under a fluorocarbon (i.e., fluorine-containing alkane) refrigerant, and there is no risk of causing problems such as copper plating. Moreover, the two-layer separation temperature is low and the compatibility is good not only with Freon-11 and Freon-12 but also with poorly soluble refrigerants such as hydrogen-containing Freon compounds and perfluoroalkanes. In particular, since the two-layer separation temperature on the low-temperature side is low and the two-layer separation temperature on the high-temperature side is high for extremely poorly soluble refrigerants such as Freon-134a, it is useful for this type of refrigerant. It also has high seizure resistance, reduces oil consumption due to evaporation, and reduces oil circulation.
したがって、本発明の潤滑油は、これら各種のフロン化
合物を冷媒として用いる冷凍機、クーラー（特にカーエ
アコン）、ヒートポンプ等の潤滑剤として有効に利用さ
れる。Therefore, the lubricating oil of the present invention can be effectively used as a lubricant for refrigerators, coolers (especially car air conditioners), heat pumps, etc. that use these various fluorocarbon compounds as refrigerants.
Claims (2)
もに、粘度指数が７０以上であり、かつ水分含有量が２
００ｐｐｍ以下であるポリグリコール系化合物を主成分
とするフッ素含有アルカン冷媒用潤滑油。(1) The kinematic viscosity at 40°C is 5 cSt or more, the viscosity index is 70 or more, and the water content is 2
A lubricating oil for fluorine-containing alkane refrigerants whose main component is a polyglycol compound having a content of 00 ppm or less.
〜２０の炭化水素基またはアシル基を 示し、Ｒ＾２は炭素数２〜４の直鎖アルキレン基または
分岐アルキレン基を示す。また、ｎは５以上の数を示す
。〕 で表わされるものである請求項１記載のフッ素含有アル
カン冷媒用潤滑油。(2) Polyglycol compounds have the general formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ [In the formula, R^1 and R^3 are each hydrogen and the number of carbon atoms is 1
~20 hydrocarbon group or acyl group, and R^2 represents a straight chain alkylene group or branched alkylene group having 2 to 4 carbon atoms. Further, n represents a number of 5 or more. ] The lubricating oil for a fluorine-containing alkane refrigerant according to claim 1, which is represented by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63270835A JPH06102792B2 (en) | 1987-10-30 | 1988-10-28 | Lubricating oil for fluorine-containing alkane refrigerant |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-273418 | 1987-10-30 | ||
| JP27341887 | 1987-10-30 | ||
| JP63270835A JPH06102792B2 (en) | 1987-10-30 | 1988-10-28 | Lubricating oil for fluorine-containing alkane refrigerant |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4345705A Division JPH07103388B2 (en) | 1987-10-30 | 1992-12-25 | Lubricating oil for 1,1,1,2-tetrafluoroethane refrigerant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01198694A true JPH01198694A (en) | 1989-08-10 |
| JPH06102792B2 JPH06102792B2 (en) | 1994-12-14 |
Family
ID=26549398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63270835A Expired - Lifetime JPH06102792B2 (en) | 1987-10-30 | 1988-10-28 | Lubricating oil for fluorine-containing alkane refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06102792B2 (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01256594A (en) * | 1988-04-06 | 1989-10-13 | Nippon Oil Co Ltd | Refrigerating machine oil composition for refrigerating apparatus |
| JPH01259095A (en) * | 1988-04-08 | 1989-10-16 | Kiyouseki Seihin Gijutsu Kenkyusho:Kk | Lubricating oil useful for fluorocarbon compressor |
| JPH01271491A (en) * | 1988-04-22 | 1989-10-30 | Nippon Oil Co Ltd | Refrigerating machine oil composition for car air conditioner |
| JPH0237256A (en) * | 1988-05-27 | 1990-02-07 | Cpi Eng Services Inc | Improved refrigerator and method of improving efficiency of refrigerator |
| JPH0243290A (en) * | 1988-04-22 | 1990-02-13 | Nippon Oil Co Ltd | Refrigerant oil composition for automotive air conditioner |
| JPH0284491A (en) * | 1988-04-06 | 1990-03-26 | Nippon Oil Co Ltd | Lubricating oil composition for freezing refrigerator |
| JPH02102296A (en) * | 1988-10-07 | 1990-04-13 | Tonen Corp | Lubricating oil for refrigerator wherein 1,1,1,2-tetrafluoroethane refrigerant is used |
| JPH02182780A (en) * | 1989-01-10 | 1990-07-17 | Asahi Glass Co Ltd | Tetrafluoroethane-base composition for refrigerator |
| JPH02305893A (en) * | 1988-12-06 | 1990-12-19 | Idemitsu Kosan Co Ltd | Lubricating oil for compression refrigerating machine |
| JPH03115493A (en) * | 1989-09-29 | 1991-05-16 | Nishi Nippon Tsusho Kk | Refrigerating machine oil |
| JPH03281688A (en) * | 1990-03-30 | 1991-12-12 | Hitachi Ltd | Refrigerator |
| US5300245A (en) * | 1991-07-01 | 1994-04-05 | Kao Corporation | Working fluid composition having ketone-containing compound for use in refrigeration system |
| EP0693546A1 (en) | 1994-07-19 | 1996-01-24 | NIPPON OIL Co. Ltd. | Refrigerator oil and fluid composition for refrigerator |
| EP0699742A2 (en) | 1994-08-03 | 1996-03-06 | Nippon Oil Co. Ltd. | Refrigerator oil composition and fluid composition for refrigerator |
| EP0711824A2 (en) | 1994-11-07 | 1996-05-15 | Nippon Oil Co. Ltd. | Lubricating oil and composition for refrigerating machine, and refrigerating machine |
| EP0717098A2 (en) | 1994-12-12 | 1996-06-19 | Nippon Oil Co. Ltd. | A refrigerating machine oil and a fluid composition for use in a refrigerating machine |
| JPH08239676A (en) * | 1995-12-28 | 1996-09-17 | Asahi Glass Co Ltd | Tetrafluoroethane composition for refrigerator |
| WO2001002521A1 (en) * | 1999-07-06 | 2001-01-11 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition for carbon dioxide refrigerant |
| US6217791B1 (en) | 1991-12-18 | 2001-04-17 | Asahi Denka Kogyo K.K. | Refrigerant incorporating a polyoxyalkylene glycol monomethylether |
| WO2001090282A1 (en) * | 2000-05-22 | 2001-11-29 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for refrigerating machine |
| US7914697B2 (en) * | 2006-03-10 | 2011-03-29 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition |
| JP2012513527A (en) * | 2008-12-23 | 2012-06-14 | シュリーブ ケミカル プロダクツ インコーポレーテッド | Refrigerant lubricant composition |
| WO2013005647A1 (en) * | 2011-07-01 | 2013-01-10 | 出光興産株式会社 | Lubricant oil composition for compression refrigerator |
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Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2514090B2 (en) * | 1988-04-06 | 1996-07-10 | 日本石油株式会社 | Lubricating oil composition for freezers |
| JPH0284491A (en) * | 1988-04-06 | 1990-03-26 | Nippon Oil Co Ltd | Lubricating oil composition for freezing refrigerator |
| JPH01256594A (en) * | 1988-04-06 | 1989-10-13 | Nippon Oil Co Ltd | Refrigerating machine oil composition for refrigerating apparatus |
| JPH01259095A (en) * | 1988-04-08 | 1989-10-16 | Kiyouseki Seihin Gijutsu Kenkyusho:Kk | Lubricating oil useful for fluorocarbon compressor |
| JPH01271491A (en) * | 1988-04-22 | 1989-10-30 | Nippon Oil Co Ltd | Refrigerating machine oil composition for car air conditioner |
| JPH0243290A (en) * | 1988-04-22 | 1990-02-13 | Nippon Oil Co Ltd | Refrigerant oil composition for automotive air conditioner |
| JPH0237256A (en) * | 1988-05-27 | 1990-02-07 | Cpi Eng Services Inc | Improved refrigerator and method of improving efficiency of refrigerator |
| JPH02102296A (en) * | 1988-10-07 | 1990-04-13 | Tonen Corp | Lubricating oil for refrigerator wherein 1,1,1,2-tetrafluoroethane refrigerant is used |
| JPH02305893A (en) * | 1988-12-06 | 1990-12-19 | Idemitsu Kosan Co Ltd | Lubricating oil for compression refrigerating machine |
| JPH02182780A (en) * | 1989-01-10 | 1990-07-17 | Asahi Glass Co Ltd | Tetrafluoroethane-base composition for refrigerator |
| JPH03115493A (en) * | 1989-09-29 | 1991-05-16 | Nishi Nippon Tsusho Kk | Refrigerating machine oil |
| JPH03281688A (en) * | 1990-03-30 | 1991-12-12 | Hitachi Ltd | Refrigerator |
| US5300245A (en) * | 1991-07-01 | 1994-04-05 | Kao Corporation | Working fluid composition having ketone-containing compound for use in refrigeration system |
| US5401433A (en) * | 1991-07-01 | 1995-03-28 | Kao Corporation | Working fluid composition having ketone-containing compound for use in refrigeration system |
| US6217791B1 (en) | 1991-12-18 | 2001-04-17 | Asahi Denka Kogyo K.K. | Refrigerant incorporating a polyoxyalkylene glycol monomethylether |
| EP0693546A1 (en) | 1994-07-19 | 1996-01-24 | NIPPON OIL Co. Ltd. | Refrigerator oil and fluid composition for refrigerator |
| EP0699742A2 (en) | 1994-08-03 | 1996-03-06 | Nippon Oil Co. Ltd. | Refrigerator oil composition and fluid composition for refrigerator |
| EP0711824A2 (en) | 1994-11-07 | 1996-05-15 | Nippon Oil Co. Ltd. | Lubricating oil and composition for refrigerating machine, and refrigerating machine |
| EP0717098A2 (en) | 1994-12-12 | 1996-06-19 | Nippon Oil Co. Ltd. | A refrigerating machine oil and a fluid composition for use in a refrigerating machine |
| JPH08239676A (en) * | 1995-12-28 | 1996-09-17 | Asahi Glass Co Ltd | Tetrafluoroethane composition for refrigerator |
| US7018961B2 (en) | 1999-07-06 | 2006-03-28 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition for carbon dioxide refrigerant |
| WO2001002521A1 (en) * | 1999-07-06 | 2001-01-11 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition for carbon dioxide refrigerant |
| EP1203807A4 (en) * | 1999-07-06 | 2006-07-05 | Idemitsu Kosan Co | Refrigerating machine oil composition for carbon dioxide refrigerant |
| US8324140B2 (en) | 1999-07-06 | 2012-12-04 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition for carbon dioxide refrigerant |
| WO2001090282A1 (en) * | 2000-05-22 | 2001-11-29 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for refrigerating machine |
| US6894010B2 (en) | 2000-05-22 | 2005-05-17 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for refrigerating machine |
| US7914697B2 (en) * | 2006-03-10 | 2011-03-29 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition |
| JP2012513527A (en) * | 2008-12-23 | 2012-06-14 | シュリーブ ケミカル プロダクツ インコーポレーテッド | Refrigerant lubricant composition |
| WO2013005647A1 (en) * | 2011-07-01 | 2013-01-10 | 出光興産株式会社 | Lubricant oil composition for compression refrigerator |
| JP2013014673A (en) * | 2011-07-01 | 2013-01-24 | Idemitsu Kosan Co Ltd | Lubricant composition for compression type refrigerator |
| US9902917B2 (en) | 2011-07-01 | 2018-02-27 | Idemitsu Kosan Co., Ltd. | Lubricant oil composition for compression refrigerator |
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|---|---|
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