SU644393A3 - Lubricating composition - Google Patents

Description

(54) LUBRICANT / COMPOSITION A composition may include as a alkyl aromatic compound a mixture of compounds. This mixture is characterized by the following indicators: viscosity index 80-116; pour point 40-80 ° F molecular weight in the range of 350-526; preferably 375-480. Trialkyl substituted tetrahydronaphthalenes preferably have the same boiling range variations as dialkyl benzenes. In addition, they predominantly have about that jKe sacoai molecular weight. This composition of the composition can be obtained in an ojichny way. For example, it can be obtained by the use of alc ery or ashes and tetrahydra nDFStyya, and the mixture obtained in p yytazg pr6yuk a. Also, it can be obtained by alkylating a mixture of alkyl beueols and dialkyl substituted tetradehyde alynoy. Podkhoi ym $ likylyrum. It also can be a bastard with the help of dividing with alkyl benzene raw material of the search for the search in search of others, as a catalyst for HE - BPA, methyl bromide, aluminum, Yredpbchch and ZHYY Alc; zod in akilny group. Preferred alkyl alkyl groups have been containing from up to 15 carbon atoms. -; Pour point; not lower, C: Index of viscosity not,: y zhe w brush at -40 ° C 28,

The proposed lubricant compositions can be used as a lubricant for the crankshaft, for aircraft turbojet engines, for turbines, hydraulic fluid, transmission fluid, a combination fluid for the crankshaft and transmission fluid, steering (automotive) fluid, and tool fluid. . .

The proposed lubricant compositions, in addition to the main components, contain various remedies. Examples of such additives can be Dispersing and myMaxing agents, oxidation retardant, corrosion inhibitors, improving the index in: Aggregates, IT-corrosion agents and anti-toxic agents.

The compositions of olefinic oligomer obtained from mission-1, are shown in table 1,

Tab. An oligomer can be obtained from K-olefins using a suitable catalyst, and is usually obtained from ob-olafins containing from 6 to 16 carbon atoms, preferably from 8 to 12 carbon atoms, in particular, 10 carbon atoms. The linear olefinic oligomer preferably contains at least 50-60 wt.% Of a compound containing from 24 to 60 carbon atoms. When a linear monoolefinic | oligomer is obtained by oligomerizing oit olefins containing 8-12 carbon atoms, the maximum the amount of the dimer present is preferably 10% by weight. The linear myo-olefin oligomers may contain very small amounts (usually less than 5% by weight) of branched-chain olefics or diolephins.;. .-. To improve their oxidation stability. Linear monr Olefinic oligomers can be processed by an appropriate method, such as hydrogenation or heat treatment. However, linear monoolefin oligomers have been treated or not to improve. Their resistance to oxidation, does not matter if they are mixed with dialkyl benzenes. 85 wt.% And preferably from 50 to 80 wt.% Of the lithium monoolefin oligomers. The proposed compositions have the following physical properties. . 7 0 7200 29.0-29.5, 0 0

The alkyl aromatic substance obtained by disproportioning predominantly C-C 13 alkyl benzene in the presence of the catalyst AlClj and has the composition,% by volume: 68 dialkyl benzrls containing alkyl groups Cjj-Ci4 22.8 trialkyl-substituted tetrahydr6 naphthalenes of the same molecule as dialkyl benzenes of the molecule

Table 2 lists the properties of compositions containing both α-olefin oligomer (6l.) - and synthetic hydrocarbon lubricants (CU.S.) - alkyl aromatic compounds of the above structure.

Spreadsheets

The percentage deviation from the interpolated viscosity is the difference between the interpolated and measured viscosity of the mixture divided by the interpolated value.

 Calculate the viscosity index of No Yaekost m, measured at 38–99 ° C.

Example 2, as CUS use a mixture of dialkyl benzenes (alkyl-C | 2 Hjg) and two hydrogeons | 6 bath oO-olefin oligomers (6l. 1 and Ol.2), obtained from mission-1. Ol.1 contains 98% of trimer dece a-1

Deviation from interpolated viscosity at -40 ° C,%

Pour point, €

35 And 2% tetramer of mission-1; Ol.2 contains 37g5% t of ymer of decene-1 and 52.5% of tetrameter jecen-1,

The physical properties of dialkyl benzoate {DAV-12) about -ole 4Q finoby are identified in the .3n | oligr | Merov and their mixtures.

fa b l and c a 3.

-7.5

-5.0

-60

Example 3. A linear olefinic oligomer obtained from mission-1 contains at least 50% by weight of C24- (, 0 ° C, C oligomers) obtained by disproportionating an alkylbeneol containing alkyl predominantly C, 2- C at B: B6, b CCT; /., v ..

at 5/92; 5.89 4.97; 4.98 5.15 at 35.90 g 35, Ob29.03, -28.60 29.04 at -18 ° q 882 g 884 866; 858 856

at 8212; 83658793; 89418559 Deviation of / 6t7 and of the interpoli rrvanny in zkbsty at

:. - --.:- .g .; - -1.8 -40 С,% Iidex 119 f 121 105; 109 117 viscosity

example .4. Oil for reducto- 30

ditch . -,

Oil for gearboxes contains 6.5% by weight of technical anti-backing designation. Name, unit of measureComposition

Ratio; G.y.C.OL.

Ki Nemitychesk, Viscosity, Eats

at 99 s at S8 at -18 ° C at

Viscosity Index Pour Point,

° s. Stability at

storage

Two weeks at

66 ° C

the presence of catalyst A1C1 j. The substance has the following composition by mass spectrometry, vol.%: 69.3 dialkylbeneols, 22.3 trialkyl-substituted tetrahydronaphtalia of the same mol.v.

Properties Ol., S.U.S. and their mixtures are given in table. four.

Table 4

5.39 5.63; 5.85 5.67 5.74 5.82 5.89 30.4031.81; 31.48 31.9232.4432.5433.11 85386; 854 856 861 872 868 8301 8217; 8254 8254 8254 82608322

-3.3 -2.3 -1.8 -1.4 -1, .1 O 123 128; 132 130 131 13.5 135

additives and 93.5% by weight of an oil base. S.US; and ol. the same as in example 3 ..

Table 5 shows the properties of gear oils of different composition. .I a b l and c a 5

75:25

50:50

25:75

0: 100 hypoid gear oil

PRI me R 5. Gas turbine oil. Turbine oil contains 6.53% by weight of an additive that includes a wear resistant compound, an antioxidant, a viscosity regulating polymer,

Name, unit of measure

Ratio

100: 0 S. U. C .; Ol

Kinematic viscosity, eat

at 9 9 ° C

at 38 ° C

at

at -4.0 ° С

Viscosity index

Pour Point

with at

Storage stability:

Two weeks at

 The sample is precipitated. The sample becomes cloudy.

Example 6. Engine oil). Engine oil contains 7.95 res.% Benzene dispersing agent, magnesium sulfonate, zincdithiophosphate inhibitor, Phenol mA, Bönzol Name, unit of measure. ; . ;:

The ratio of USC: OL

Kinematic viscosity, eat

at

at

at -18 ° C

With Viscosity Index Pour Point

° С

Stability pr storage:

corrosion inhibitor and 93.48 wt.% oil ocNOiBH. S.U.S. and ol. the same as in example 3.

The table shows the properties of turbine oils of different composition. Table 6

Gas turbine oil

06100

25:75

50:50

75:25

jo

138

-57

-54

-57

a penetrating oxidant w of 92.5 wt.% of an oily base. S.U.S. and Ol.Takie same

40 as in example 3.

Table 7 shows the properties of engine oils of different composition.

Table 7

. Machine oil

0: 100

25:75

50:50

75:25

6.46 38-, 69,181 6.405 130

-54

-54

-54

,

Obraeets cloudy. Example 7. The linear mono-olefin oligmer obtained from mission-1 contains at least 50% to 9% by weight of oligomer Cgd-C 0. T alkylbenzo (alkyl -CtgKt) has a fragment determined by mass spectrometry40 .58 eats while the interpolated 4900 eats.

Thus, it has been found that mixtures of dialkylaryl and linear monoolefin oligster have the following;

compositions that include blend and various additives have improved

sra: visibility indices from dialkaryl1 "1 or linear moncryscheffy, new oligers containing

additives. Chesky, weight. $: 96.4 didecylbenzoloye, 2.9 tridecylbenzenes, 0.6 mixed alkyl aromatic compounds. Table 8 shows the properties of 6l. di alkyl benzo (DAV-10} and mixtures thereof. Table 8

Claims (2)

1. US Patent 3,173,965, cl. 260-667,; i965. 2. US patent number 3642634.kl 52-59, 1972.