![]() Hydraulic fluid
专利摘要:
An acid resistant phosphate ester functional fluid comprises phosphate ester basestock and an additive composition comprising: (1) N-alkyl-2-pyrrolidone, (2) epoxide, and (3) triazole. The functional fluid has utility for lubricating machinery. The additive composition may be prepared separately and used for imparting acid resistance to phosphate esters. 公开号:SU1342425A3 申请号:SU843715903 申请日:1984-03-30 公开日:1987-09-30 发明作者:Фрэнсис Анзербергер Джозеф (Старший) 申请人:Стауффер Кемикал Компани (Фирма); IPC主号:
专利说明:
one The invention relates to compositions of a hydraulic fluid based on phosphoric acid ester, which are used in cases where fire resistance and high temperature stability are required. The aim of the invention is to increase the acid resistance of the liquid. The proposed hydraulic fluid consists of a main component, an alkyl aryl phosphoric ester mixed with 0.09-0.15 wt.% Acid-resistant additive containing (1) H-alkyl-2-pyrrolidone, (2) epoxy compound and (3 a) benzotriazole. Limonene monoxide, 3,4-zpoxycycloalkyl-3,4-epoxycycloalkylcarboxylate is used as an epoxy compound. Limonene monoxide is a particularly preferred epoxy compound, since it is not prone to precipitation and is highly compatible with the main component, alkylaryl phosphoric ester. The compounds used in the field are: butyl and phosphate phosphate; butylphenylphenylphosphates and mixtures thereof. Especially preferred for reasons of thermal stability and uniformity are the main components containing mixtures of mono-tert-butylphenyl diphenyl phosphate and di-tert-butyl phenyl phenyl phosphate. The liquid is prepared by dispersing a three component additive. , ten 0.05 424252 based on alkylaryl phosphate ester to obtain a homogeneous mixture. Mixing can be carried out without difficulty, since the composition is completely soluble in phosphate ester at concentrations of not more than 1% by weight, calculated on hydraulic fluid. Liquid Q is stable when stored, but must be kept in sealed containers to avoid contamination by water and exposure to air. Example. This example illustrates the change in the properties of hydraulic fluids based on phosphoric acid alkylaryl esters containing various types and amounts of additives. 2Q About 800 g of tert-butylphenylphenyl phosphate are loaded into a three-neck round bottom flask per liter. The flask is equipped with temperature control equipment, a heating jacket, and a stirrer. 25 and above with a cold water cooled condenser provided (to eliminate water entrainment). In order to cause hydrolysis in the flask, a clean piece is added to the liquid. 30 copper and 8-10 g of water. The contents of the flask were mixed and heated at 93.3 ° C and the acid value of the liquid was measured on 10 ml aliquot samples taken after selected time intervals. The acidity of the fluid is measured according to the ASTM D974 test procedure (neutralization by titration with a color indicator — KG milligrams per gram of fluid). 35 40 The compositions of the hydraulic fluid and the results of the titration of the acid are shown in Table 1. Table 1 About 24 0.012 0.068 Note. 5 Tai 6 7 ten eleven Est 12 Test results Samples A, B, C, D, E, F and G according to control experiments in the absence of one or more components of the additive according to the invention. Samples H, I, J, K, L, M, N and O are fluids according to the invention. After placing the samples in the order of an increase in the estimated titratable acid number after 100 hours (TAN according to ASTM D-974), the specialized data are obtained as shown in Table 2. -Full titrated acid number, determined by the method of ASTM D-974. -Sample dehydrated. -The liquid is treated with activated carbon before the test. -Fyrgnel 220 - Commodity tert-butylphenyl phenyl phosphate liquid, viscosity 42-50 cSt at 37.8 ° C, manufactured by Stauffer Chemical Company. -3,4-Epoxycycloalkyl-3,4-epoxycycloalkylcarboxylate instead of limonene monoxide as an epoxy component. -Fyrgnel 150 - commodity t-butylphenium / phenylphosphate liquid, viscosity 29-37 cSt at 37.8 ° C, manufactured by Stauffer Chemical Company. -Fyrgnel GT is a commercially available Fyrgnel 150 fluid with a stabilizer additive. - Evaluation for 100 hours calculated by the method of least squares for the regression of TAN values of more than 0.07 in time using the equation: (.100) m (time, hours) + b. table 2 The arrangement of the samples shows that the compositions containing the three components of the additive according to the invention have lower acid numbers than the control experiments in the absence of one or several components. The drawing shows three curves obtained on the basis of the data for the E, Cu L samples indicated in the example. Sample E - Fyrnel 150+ + benzotriazole liquid shows a relatively rapid increase in acidity. Sample G - liquid Fyrnel 150 + phenyl-ob-naphthylamine + monone monoxide0 five + benzotriazole exhibits a slightly improved time delay in the growth of acidity compared with sample E. Sample L - Fyrnel 150 + liquid phenyl-ob-naphthylamine + limonene monoxide + H-methyl-2-pyrrolidone + + benzotriazole is in accordance with the invention and developed There is the greatest delay in the formation of acid over time. It should also be noted that the angle of inclination (acid number / time) of the extreme right curve of the sample at high acidity values is less than the angle of inclination of the curves for samples E or G. The formation of acid in sample L is not only delayed to a greater extent, but also its increase the content is more hollow than in the case of Q control samples.
权利要求:
Claims (1) [1] Invention Formula Hydraulic fluid containing 5 alkaliaryl ether of phosphoric acid and an additive based on epoxy compound, characterized in that, in order to increase the stability and acid resistance of the liquid, it contains 0.09-0.15 May as an additive. a mixture of epoxy compound selected from the group consisting of limonene monoxide, 3,4-epoxycycloalkyl-3,4-epoxycycloalkylcarboxylate, N-methyl-2-pyrrolidone and benzotriazole in a weight ratio of K-methyl-2-pyrrolidone: epoxy-compound 1: 1.2-6 or 1.3: 1, N-methyl-2-pyrrolidone: benzotriazole 1: 1-2 or 1.9-4: 1 and epoxy compound: benzotriazole 2.5: 1 or 3: one. 0 five 0 Editor Y. Sereda go 0 60 in Compiled by L.Ivanova Tehred I.Popovich Corrector I. Muska 4447/58 Circulation 462 Subscription VNIIPI USSR State Committee for inventions and discoveries P3035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4
类似技术:
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同族专利:
公开号 | 公开日 IL70955D0|1984-05-31| AU2609784A|1984-10-04| ES531170A0|1986-04-01| ES8606468A1|1986-04-01| US4461713A|1984-07-24| BR8401371A|1984-11-06| ZA841057B|1984-09-26| EP0121852B1|1988-07-27| DK81584A|1984-10-02| KR840008684A|1984-12-17| AU562116B2|1987-05-28| DK81584D0|1984-02-21| DE3472972D1|1988-09-01| EP0121852A2|1984-10-17| JPS59223796A|1984-12-15| EP0121852A3|1986-02-12| IL70955A|1987-10-20|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US3071549A|1959-12-17|1963-01-01|Monsanto Chemicals|Preservative-type functional fluids| GB1132604A|1965-05-07|1968-11-06|Shell Int Research|Improvements in or relating to polymer concentrates| US3718596A|1970-02-16|1973-02-27|Monsanto Co|Functional fluid compositions| US3649721A|1970-03-02|1972-03-14|Chevron Res|Low alkali metal content hydraulic fluids and their preparation| BE792993A|1971-12-20|1973-06-19|Monsanto Co|COMPOSITIONS OF FUNCTIONAL FLUIDS CONTAINING OXIDE STABILIZERS| US3957668A|1973-09-24|1976-05-18|Mcdonnell Douglas Corporation|Novel epoxy compounds and functional fluid compositions containing such compounds| US3941708A|1974-02-11|1976-03-02|Stauffer Chemical Company|Hydraulic fluid antioxidant system| US3926823A|1974-10-07|1975-12-16|Continental Oil Co|Turbine oil compositions| US3923672A|1974-10-07|1975-12-02|Continental Oil Co|Turbine oil compositions| US4169800A|1977-12-02|1979-10-02|Fmc Corporation|Turbine lubricant|US4568474A|1985-01-07|1986-02-04|Ford Motor Company|Polymeric particle acid neutralizers with reactive epoxy core for engine oils| US4568473A|1985-01-07|1986-02-04|Ford Motor Company|Amine bearing polymeric particles as acid neutralizers for engine oils| US5552040A|1992-09-24|1996-09-03|Sundstrand Corporation|Method of increasing service life of oil and a filter for use therewith| US5374354A|1992-09-24|1994-12-20|Sundstrand Corporation|Method of increasing service life of oil and a filter in an integrated drive generator or constant speed drive and improved oil filter for use therein| US5779774A|1996-04-02|1998-07-14|Paciorek; Kazimiera J. L.|Rust inhibiting phosphate ester formulations| DE19918199A1|1999-04-22|2000-10-26|Basf Ag|Hydraulic fluid, especially motor vehicle brake fluid, contains one or more cyclic esters or amides of carboxylic acids, e.g. N-methyl-pyrrolidone| US6866797B1|2000-08-03|2005-03-15|Bj Services Company|Corrosion inhibitors and methods of use| US6599866B2|2001-04-20|2003-07-29|Exxonmobil Research And Engineering Company|Servo valve erosion inhibited aircraft hydraulic fluids| EP2920285A1|2012-11-16|2015-09-23|Basf Se|Lubricant compositions comprising epoxide compounds|
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申请号 | 申请日 | 专利标题 US06/481,436|US4461713A|1983-04-01|1983-04-01|Acid-resistant phosphate ester functional fluids| 相关专利
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