BR112013030286B1 - high temperature oil and use of said oil - Google Patents

Abstract

HIGH TEMPERATURE OIL. The invention relates to new high-temperature oils based on aromatic esters, such as trimellitic acid esters, pyromelitic acid esters, trimethic acid esters or a mixture thereof, or floroglucinol derivatives and a fully hydrated or hydrated polyisobutylene, or a mixture of these.

Description

description

The invention relates to high temperature oils based on aromatic esters, such as trimellitic esters, pyromelitic acid esters, trimethic acid esters or a floroglucinol mixture or derivatives, such as floroglucinol trioctyl acid ester, tridecyl acid ester floroglucinol and tridodecyl acid ester floroglucinol and a fully hydrogenated or (partially) hydrogenated polyisobutylene, or a mixture thereof.

High temperature oils, which are used, for example, in the field of industrial lubrication systems on conveyor belts, paint lines, textile industry, insulation materials industry, glass industry, etc., and continuous belt lubrication installations of wood compaction, generally consist of a three-component system.

This three-component system generally consists of an aromatic ester, a hydrocarbon and a synthetic polymer based on polyisobutylene. Synthetic hydrocarbon is used as a solubilizer. This lubrication system is also added to commercial additives. The disadvantage of these systems is, however, that, with the use of synthetic hydrocarbons, the working temperature of the oil is limited, since they evaporate quickly at temperatures> 200 ° C.

A three-component system is described, for example, in EP 1 154 011 BI. In this document, a lubricating oil composition is provided which contains an aromatic composition of an ester and as an additional base oil, an α-olefin oligomer, as well as a polyisobutene.

As mentioned above, the energy loss of a three component lubricant composition, due to evaporation of the solubilizer, is high. Through evaporation, a residue and / or deposit of lubricant components is formed on the application surface or region of use, resulting in the fact that complete lubrication cannot be guaranteed. This deposit must still be removed. In general, the operation of the installation should be suspended and the residue removed. There is, therefore, a need for a high temperature oil, in which the evaporation of the individual components of the oil is greatly reduced even at a constant high temperature, and thus the lubrication effect is not lost for long periods.

Such high temperature oil is particularly necessary for the lubrication of chains and belts in wooden presses, such as those that are present, for example, in Conti ™ presses for the manufacture of laminate floors.

The object of the present invention is to provide a high temperature oil in which a good lubricating effect is obtained at constant high temperature for a long period, and which can be supplied in different viscosities depending on the application.

em que RI é um grupo alquilo linear ou ramificado com 6 a 16 átomos de carbono, e n é 3 ou 4, ou uma composição de fórmula geral (II) em que R é um grupo alquilo de cadeia linear ou ramificada tendo um comprimento de cadeia de 8 a 16 átomos de carbono e n é igual a 3, e um poliisobutileno hidrogenado, um poliisobutileno totalmente hidrogenado ou uma mistura de um poliisobutileno completamente hidrogenado e um poliisobutileno hidrogenado. De preferência abrange um poliisobutileno totalmente hidrogenado.This goal is surprisingly achieved through the supply of high temperature oil, which as a two-component system comprises an aromatic ester of general formula (I)

wherein RI is a straight or branched alkyl group having 6 to 16 carbon atoms, and n is 3 or 4, or a composition of general formula (II) wherein R is a straight or branched chain alkyl group having a chain length 8 to 16 carbon atoms and n equals 3, and a hydrogenated polyisobutylene, a fully hydrogenated polyisobutylene or a mixture of a fully hydrogenated polyisobutylene and a hydrogenated polyisobutylene. It preferably comprises a fully hydrogenated polyisobutylene.

e 50 a 5 % em peso de poliisobutileno hidrogenado, totalmente hidrogenado ou uma mistura de poliisobutileno hidrogenado e poliisobutileno totalmente hidrogenado.In general, the high temperature oil comprises 40 to 91.9% by weight of aromatic ester of general formula (I) or the composition of general formula (II)

and 50 to 5% by weight of hydrogenated, fully hydrogenated polyisobutylene or a mixture of hydrogenated polyisobutylene and fully hydrogenated polyisobutylene.

In addition, the high temperature oil comprises 0.1 to 6% by weight, particularly 2 to 5% by weight of an antioxidant composition.

In addition, high temperature oil may comprise from 0 to 4% by weight, in particular 0.3 to 3.5% by weight of an anti-wear agent, 0.1 to 1.0% by weight of an inhibitor corrosion, and 0 to 2% by weight, in particular 0.1 to 1.5% by weight of an ionic liquid.

The ester composition of formula (I) present in the high temperature oil is preferably selected from the group consisting of esters of trimellitic acid, pyromelitic acid, trimethic acid, or mixtures thereof. The composition of general formula (II) is a derivative of floroglucinol (benzene-1,3,5-triol), preferably ester of florocuccinol trioctyl acid, floroglucinol ester of tridecyl acid, ester of tridodecyl acid floroglucinol.

The antioxidant medium in high temperature oil, which may contain sulfur and / or nitrogen and / or phosphorus present in the molecule, is selected from the group consisting of aromatic amine antioxidants such as alkylated phenyl-alpha-naphthylamine, dialkyl-diphenylamine, sterically blocked phenols, such as butylated hydroxytoluene (BHT), phenolic antioxidants with thioether groups, Zn or Mo or W dialkyldithiophosphates and phosphites.

The wear protection agent in the high temperature oil is selected from the group consisting of anti-wear additives based on diphenyl cresyl phosphate, amine neutralized phosphates, alkylated and non-alkylated triaryl phosphates, alkylated and non-alkylated triaryl thiophosphates , zinc or Mo or W dialkyldithiophosphate, carbamates, thiocarbamates, zinc or Mo or W dithiocarbamates, dimercaptotiadiazole, calcium sulfonates and benzotazole derivatives.

The corrosion inhibitor in high temperature oil is selected from the group consisting of additives based on "overbasified" calcium sulfonates containing a TBN of 100 to 300 mg KOH / g, calcium phosphates neutralized with amine, naphthalenesulfonates of alkylated calcium, oxazoline derivatives, imidazole derivatives, succinic acid hemi-ester, N-alkylated benzotriazoles.

The ionic liquid (IL) used in high temperature oil is the well-known molten salts which, by definition, are liquids at temperatures below 100 ° C. Many ionic liquids are liquids at room temperature or at lower temperatures. Suitable cations for ionic liquids are quaternary ammonium cation, phosphonium cation, an imidazolium cation, a pyridinium, pyrazolium, oxazolium cation, a pyrrolidinium cation, a guanidine cation, or a morpholine cation or a triazole cation, with an anion selected from the group consisting of [PF6] “, [BF4]“, [CF3CO2] ', [CF3SO3]', [(CF3SO2) 2N] ', [(R4S02) (R5S02) N] ', [(CF3SO2) (CF3COO) N] _, [R4-SO3]', [R4 -0-S03] ', [R4-COO] “, cr, Br', [NO3] ', [N (CN) 2] ', [HSO4]', OU [R4R5PO4] ', and the radicals R4 and R "are independently selected from hydrogen; alkyl groups with 1 to 20 linear or branched, saturated or unsaturated carbon atoms, aliphatic or alicyclic, heteroaryl alkyl groups, C4-CÓ heteroaryl with 3 to 8 carbon atoms in the heteroaryl radical, and at least one N, O and S heteroatom, which can be substituted with at least one group selected from the alkyl groups C2-C6 and / or halogen atoms; s aryl-aryl-C 1 -C 6 alkyl having 5 to 12 carbon atoms in the aryl radical, which can be substituted with at least one C 1 -C 3 alkyl group, can be combined, partly or fully fluorinated alkyl radicals. However, other combinations are also possible. Anions of the type [PF! 6_x) R7X] ’, [R'SO3]’ are also known. R7 here represents partially or fully fluorinated radicals such as pentafluoroethyl or perfluorobutyl. Also very thermally stable is the anion type (FS02) 2N “.

In order to have a positive effect on oils, ionic liquids must first have an oil solubility, however, complete miscibility is not absolutely necessary. Ionic liquids must be thermally stable and do not promote corrosion, for example, in the presence of water do not form very corrosive reaction products, or form them only very slowly.

Particularly advantageous are ionic liquids, such as tetraalkylammonium- and tetraalkylphosphonium bis (trifluoromethyl-sulfonyl) imides, such as, for example, trihexyl (tetradecyl) phosphonium-bis (trifluromethylsulfonyl) imide and (HPDimide) and methyl-trifluoride (methyl-trifluidyl) amide (Moimid). Also particularly advantageous are ionic liquids, such as tetra alkyl ammonium- and tetra alkyl tris (perfluoroethyl) trifluoro phosphate such as, for example, tetrabutylphosphonium tris (perfluoroethyl) trifluoro phosphate (BuPPFET), trihexyl (tetradifluoro) -tris (perfetoro) fluoro phosphate (HDPPFET). Pyrrolidine tris (perfluoroethyl) - trifluorphosphate has also proved particularly advantageous. Also particularly advantageous were tetralkylammonium and tetraalkylphosphonium perfluorbutansulfonates, such as trihexyl (tetradecyl) phosphonium (HDPnonaflat) perfluorobutanesulfonate.

Any mixtures of ionic liquids can also be used.

The two-component system of the present invention performs substantially better in terms of thermal stability and residue formation or residue behavior. The enormous increase in thermal stability is of particular benefit for a significant increase in lubricating behavior. Lubrication intervals have been extended and energy savings of up to 30% in electrical energy can be achieved.

As mentioned above, the formation of waste is significantly reduced. Thus, the formation of residue cracking is reduced and the residue formed can be removed very easily with the new oil.

The attached figures show the advantages of the high temperature oil of the invention based on two components.

Figure 1 shows the friction characteristics as a function of temperature and a 250 N load of a high temperature oil of the present invention on a two component basis of Example 1, compared to a conventional oil based on the three components of Example Comparative 1, with a kinematic viscosity at 40 ° C of about 2 60 mm7s;

Figure 2 shows the evaporation loss of a high temperature oil of the present invention on a two component base of Example 1 compared to a known oil based on three components of Comparative Example 1 with a kinematic viscosity of base oil a 40 ° C temperature of about 260 mm2 / s;

Figure 3 shows the increase in the apparent dynamic viscosity of a high temperature oil of the present invention on a two-component base of Example 1, compared to a known three-component oil of Comparative Example 1, at a kinematic viscosity of base oil at 40 ° C of about 260 mm2 / s;

Figure 4 shows the coefficients of friction as a function of temperature and under a 250 N load of a high temperature oil of the present invention based on the two components of Example 2 compared to a known oil based on three components of the Comparative Example two;

Figure 5 shows the evaporation loss of a high-temperature oil of the present invention with a two component base from Example 2 compared to a known oil based on three components of Comparative Example 2 with a kinematic base oil viscosity at 40 ° C temperature of about 100 mm2 / s;

Figure 6 shows the increase in apparent viscosity of a high temperature oil of the present invention with a two component base of Example 2 compared to a known oil based on three components of Comparative Example 2 to a kinematic base oil viscosity at 40 ° C of about 100 mm7s;

Figure 7 shows the friction coefficients as a function of temperature and under a 250 N load of the high temperature oil of the present invention based on the two components of Example 3 in comparison with a known oil based on the three components of Comparative Example 3;

Figure 8 shows the evaporation loss of a high temperature oil of the present invention based on the two components of Example 3 compared to a known oil based on three components of Comparative Example 3, at a kinematic viscosity of base oil at temperature 40 ° C of about 68 0 mm7s;

Figure 9 shows the increase in the apparent dynamic viscosity of a high temperature oil of the present invention with a two component base from Example 3, compared to a known oil based on three components of Comparative Example 3 at a base oil viscosity. kinematics at 40 ° C of about 680 mm2 / s;

Figure 10 shows the evaporation loss of a high temperature oil of the present invention with a two component base with an ionic liquid of Example 4 in comparison with Comparative Example 4, which corresponds to Example 1, to a base oil viscosity 260 mm2 / s kinematics

Figure 11 shows the increase in the apparent dynamic viscosity of a high temperature oil of the present invention with a two component base, with an ionic liquid of Example 4, compared to Comparative Example 4, which corresponds to Example 1, to a kinematic viscosity of base oil of 260 mm2 / s

Figure 12 shows the experimental installation for the performance chain test bench.

The invention will now be illustrated by the following examples.

Example 1

Preparation of a two-component high temperature oil of the present invention Composition of high temperature oil: 63.4% by weight of aromatic trimellitic acid ester 30.0% by weight of fully hydrogenated polyisobutylene 3.5% by weight of agent anti-wear 3.0% by weight of antioxidant 0.1 3 by weight of corrosion inhibitors

As an aromatic ester, a trimellitic acid ester is placed in a stirring tank. At 100 ° C, the polysobutylene is added with stirring. The mixture is stirred for 1 hour to obtain a homogeneous mixture. The anti-wear agent and the antioxidant are added at 60 ° C with stirring. After about 1 hour, the finished oil can be filled into the containers provided.

Comparative Example 1

Preparation of a known three-component high temperature oil

High temperature oil composition: 47.4% by weight of aromatic trimellitic acid ester 16.0% by weight of polyisobutylene 30.0% by weight of synthetic hydrocarbon 3.5% by weight of anti-wear agent 3.0% by weight antioxidant weight 0.1% by weight of corrosion inhibitors

As an aromatic ester, a trimellitic acid ester is placed together with the poly-a-olefin as a synthetic hydrocarbon in a stirring tank. At a temperature of 100 ° C, the polyisobutylene is added with stirring. The mixture is stirred for 1 hour to obtain a homogeneous mixture. Anti-wear and antioxidant agents are added with stirring at 60 ° C in the tank. After about 1 hour, the finished oil can be filled into the containers provided.

The advantages of the high temperature oil of the invention will be shown below.

The basic oil data for Example 1 and Comparative Example 1 are shown in Table 1. Table 1

1.1. Thermal stability studies

Investigations were carried out on evaporation and viscosity under temperature load, on 5 g of sample weight in an aluminum dish at 230 ° C. For this, the oils are compared with each other according to Example 1 and Comparative Example 1. Table 2

The above results show that, by using fully hydrogenated polyisobutylene in a two-component high-temperature oil, the increase in viscosity and evaporation loss compared to the known three-component oil can be significantly reduced. These results are represented graphically in Figures 2 and 3.

1.2. Comparison of friction values

The oils prepared in Example 1 and Comparative Example 1 were used to determine the friction coefficients. A translational oscillation test (SRV) was carried out in accordance with DIN 51834, ball / disc test condition, 250 N load, 50 ° C to 250 ° C, 1 mm 50 Hz stroke, 165 min. The results are shown in Table 3. Table 3

These results, which are also shown in Figure 1, show the positive effect of high temperature oil based on two components on the friction coefficient, compared to the three component system.

1.3. Residue behavior after complete evaporation of the oil at 250 ° C.

The formation of residues and the behavior of residues in relation to solubility were studied.

The oil to be tested is weighed with a steel plate previously folded and cleaned with a solvent with 5 g and then evaporated at 250 ° C in a drying cabinet with air circulation for at least 72 hours. The square sheet is folded by hand on all four sides, to result in a bowl shape. After cooling, the results of the new weighing are noted. Essential for this test is to determine the partial solubility of the residue in new oil and the amount of residue formed. For this purpose, a drop of fresh oil is applied to the residue and rubbed with a slightly rounded glass rod in a circular motion.

The results show that the high temperature oil according to the invention with 4.8% forms less waste than the known oil, which has a 6.0% deposit. The residue formed by the high temperature oil of the invention is very dissolvable, which means that these residues are easy to remove with new oil. In contrast, the known oil residue can be significantly more difficult to remove with new oil.

1.4. Performance chain testing

Figure 12 shows a performance chain test bench operating under the following test conditions Temperature: 220 ° C Speed: 2 m / s, Load: 2600 N Elapsed time after 0.1% chain elongation, 22 hours on Example 1 and 17 hours in Comparative Example 1

Before testing, the chain is dipped in the oil to be tested. Once dipped, the chain is hung so that excess lubricating oil can drain. Finally, the chain is placed on the performance test bench (see Figure 10) and the test begins under the specified conditions. It is possible to vary the temperature, speed and load. θ execution time is defined with a 0.1% chain lengthening. Chain elongation is caused by wear on the chain links during the test run.

Example 2

Composition of the high temperature oil of the invention: 82% by weight of aromatic trimellitic acid ester 12.7-by weight of fully hydrogenated polyisobutylene 0.3 -ó θm weight of anti-wear agent 4.5% by weight of antioxidant 0, 5 -ó by weight of corrosion inhibitors 31 preparation is carried out as described in Example 1.

Comparative Example 2

Composition of three-component high-temperature oil: 55.7% by weight of aromatic trimellitic acid ester 7% by weight of polyisobutylene 33.20% by weight of synthetic hydrocarbon 0.30% by weight of anti-wear agent 3.7% by weight of antioxidant 0.10% by weight of corrosion inhibitors 31 preparation is carried out as in Comparative Example 1. 31 below the advantages of the high temperature oil of the invention are shown.

The basic data for the oils in Example 2 and Comparative Example 2 are shown in Table 4. Table 4

2.1. Thermal stability studies

Investigations on evaporation and viscosity were carried out under temperature load, on 5 g of sample weight in an aluminum dish at 230 ° C. For this, the oils are compared with each other according to Example 2 and Comparative Example 2. Table 5

The above results show that, by using fully hydrogenated polyisobutylene in a two-component high temperature oil, the increase in viscosity and evaporation loss compared to the known three-component oil 5 can be significantly reduced.

These results are represented graphically in Figures 5 and 6.

2.2. Comparison of friction coefficients

The oils of Example 2 and Comparative Example 2 were prepared to determine the friction coefficients. For this, a translational oscillation test (SRV) in accordance with DIN 51834 was used, ball / disc test condition, 250 N load, 50 ° C to 250 ° C, 1 mm 50 Hz stroke, 165 min . The results are shown in Table 6. Table 6

These results, which are also shown in

Figure 4, show the positive effect of high temperature oil based on two components on the friction coefficient compared to the three component system.

2.3. Residue behavior after complete evaporation of the oil at 250 ° C.

The formation of residues and the behavior of residues in relation to solubility were studied. The procedure is described in Example 1.

Both the high temperature oil according to the invention and the known oil show 3.0% residues, the residue formed by the high temperature oil of the invention is very dissolvable, which means that these residues are easy to remove with oil new. In contrast, the known oil residue was significantly more difficult to remove with new oil.

2.4. Performance chain testing

The chain performance test was carried out at 220 ° C, at a speed of 2.0 m / s and a load of 2600 N. The duration after 0.1% elongation of the chain is 19 h for Example 2 and the Comparative Example 2 is 17:00.

The test was carried out as described in Example 1.

Example 3

Composition of the high temperature oil of the invention: 45.4% by weight of aromatic trimellitic acid ester 48.0% by weight of fully hydrogenated polyisobutylene 2.5% by weight of anti-wear agent 3.0% by weight of antioxidant 0, 1% by weight of corrosion inhibitors

The preparation is carried out as described in Example 1

Comparative Example 3

Composition of high temperature oil of three components; 47.0% by weight of aromatic trimellitic acid ester 17.4% by weight and 2y polyisobutylene, U-6 by weight of synthetic hydrocarbon 3.5% by weight of anti-wear agent 3.0% by weight of antioxidant 0 , 10% by weight of corrosion inhibitors

Preparation is carried out as described in the

Comparative Example 1

The basic oil data, according to Example 3 and Comparative Example 3 are shown in Table 7. Table 7

3.1. Thermal stability studies

Os resultados acima mostram que, pela utilização de poliisobutileno totalmente hidrogenado em um óleo de alta 5 temperatura com dois componentes, o aumento na viscosidade e a perda de evaporação em comparação com o óleo conhecido de três componentes podem ser significativamente reduzidos. Estes resultados estão representados graficamente nas Figuras 8 e 9.Investigations were carried out on evaporation and viscosity under temperature load, on 5 g of weight of the sample in an aluminum dish at 230 ° C. For this purpose the oils are compared to each other according to Example 3 the Comparative Example 3. Table 8

The above results show that, by using fully hydrogenated polyisobutylene in a two-component high-temperature oil, the increase in viscosity and evaporation loss compared to the known three-component oil can be significantly reduced. These results are represented graphically in Figures 8 and 9.

3.2. Comparison of friction values

The oils of Example 3 and Comparative Example 3 were prepared to determine the friction coefficients. For this, a translational oscillation test (SRV) 15 in accordance with DIN 51834 was used, ball / disc test condition, load of 250 N, 50 ° C to 250 ° C, 1 mm travel of 50 Hz, 165 min. The results are shown in Table 9. Table 9

These results, which are also shown in Figure 7, show the positive effect of high temperature oil based on two components on the friction coefficient compared to the three component system.

3.3. Residue behavior after complete oil evaporation at 250 ° C.

The formation of residues and the behavior of residues in relation to solubility were studied. The procedure is described in Example 1.

The results show that the high temperature oil according to the invention with 4.8% shows less residue than known oil, which has a residue of 11.8%. The residue resulting from the high temperature oil of the invention is very well dissolved, which means that these residues are easy to remove with new oil. In contrast, the known oil residue can be significantly worse than removing it with new oil.

3.4. Performance chain testing

The chain performance test was carried out at 220 C, at a speed of 2.0 m / s and a load of 2600 N. The duration after stretching 0.1% of the chain is 17 h for Example 3 θ a of Comparative Example 3 is 15h. The test was carried out as described in Example 1.

Example 4

Composition of the high temperature oil of the invention: 62.90% by weight of aromatic trimellitic acid ester 30.00% by weight of fully hydrogenated polyisobutylene 3.5% by weight of anti-wear agent 3.0% by weight of antioxidant 0, 1% by weight of corrosion inhibitors 0.50% by weight of ionic liquid

The preparation is carried out as described in Example 1. As an ionic liquid, HDP imide (= trihexyl (tetradecyl phosphonium bis (trifluoreomethylsulfonyl) imide) was used. - Comparative Example 4 (corresponds to Example 1) Composition of the high temperature oil of the invention: 63.4% by weight of ester aromatic trimellitic acid 30.0% by weight of fully hydrogenated polyisobutylene 3.5% by weight of anti-wear agent 3.0% by weight of antioxidant 0.1 1 by weight of corrosion inhibitors

The preparation is carried out as described in Example 1

Basic oil data according to Example 4 and Comparative Example 4 are shown in Table 10. Table 10

4.1. Thermal stability studies

Investigations about evaporation and 5 viscosity were carried out under temperature load, in 5 g of sample weight in an aluminum dish at 250 ° C. The evaporation loss after 72h / 250 ° C was 19%. The apparent dynamic viscosity increase in mPas after 72h / 250 ° C was 2300 mPas. Table 11

The above results show that, with the use of HDP-imide, the thermal stability of a two-component system can be significantly improved. These results are presented graphically in Figures 10 and 11.

Example 5

Composition of the high temperature oil of the invention 63.5% by weight of floroglucinol ester of tridecyl acid 30.0% by weight of fully hydrogenated polyisobutylene 3.5 1 by weight of anti-wear agent 3.0% by weight of antioxidant 0.1 % by weight of corrosion inhibitors

The preparation was carried out as described in Example 1.

Even with high temperature oil based on a floroglucinol derivative, the results described above in detail could be obtained.

The above experimental results show that, by the high temperature oil according to the invention, significantly better results were obtained for all tests performed than those with the known high temperature oils.

In summary, it can be established that the two-component system of the present invention performs significantly better in terms of thermal stability and residue formation or waste behavior. The enormous increase in thermal stability is of particular benefit in a significant increase in lubricating behavior. Lubrication intervals have been extended and energy savings of up to 30% in electrical energy can be achieved.

Claims (13)

1. High temperature oil for the lubrication of chains, chain rollers and continuous press straps, characterized by comprising 40 to 91.9% by weight of an aromatic ester of general formula (I)

wherein RI is a linear or branched alkyl group having 6 to 16 carbon atoms and n is an integer from 3 to 4 or 40 to 91, 9,% by weight of a composition of general formula (II)

where R is a linear or branched alkyl group having a chain length of 8 to 16 carbon atoms and n is equal to 3 and 5 to 50% by weight of a hydrogenated polyisobutylene, a fully hydrogenated polyisobutylene or a mixture of a fully polyisobutylene hydrogenated and a hydrogenated polyisobutylene. High temperature oil according to claim 1, characterized in that it further comprises 0.1 to 6% by weight of an antioxidant. High temperature oil according to claim 1 or 2, characterized in that it also comprises from 1 to 4% by weight of an anti-wear agent. High temperature oil according to any one of claims 1 to 3, characterized in that it further comprises 0.1 to 0.5% by weight of a corrosion inhibitor. High temperature oil according to any one of claims 1 to 4, characterized in that it further comprises 0 to 2% by weight of an ionic liquid. High temperature oil according to any one of the preceding claims 1 to 5, characterized by the fact that the ester composition of the general formula (I) is selected from the group consisting of esters of trimellitic acid, pyromelitic acid, trimethic acid , or a mixture of these. High temperature oil according to any one of claims 1 to 5, characterized in that the composition of general formula (II) is a derivative of floroglucinol (benzene-1,3,5-triol). High temperature oil according to claim 7, characterized by the fact that the floroglucinol derivative is trioctyl acid floroglucinol ester, tridecyl acid floroglucinol ester or tridodecyl acid floroglucinol ester. High temperature oil according to any one of the preceding claims 1 to 8, characterized by the fact that the antioxidant carries sulfur and / or nitrogen and / or phosphorus in the molecule, and is selected from the group consisting of aromatic antioxidants of amine such as alkylated phenyl-alpha-naphthylamine, dialkyl-diphenylamine, sterically blocked phenols, such as butylated hydroxytoluene (BHT), phenolic antioxidants with thioether groups, Zn or Mo or W dialkyldithiophosphates and phosphites. High temperature oil according to any of the preceding claims 1 to 9, characterized by the fact that the friction reducing agent is selected from the group consisting of anti-wear additives based on diphenyl cresyl phosphate, amine neutralized phosphates, triaryl alkylated and non-alkylated phosphates, alkylated and non-alkylated triaryl thiophosphates, zinc or Mo or W dialkyldithiophosphate, carbamates, thiocarbamates, zinc or Mo thiocarbamates or W dithiocarbamates, dimercaptothiazole, calcium sulfonates and derivatives of calcium and derivatives. High temperature oil according to any one of the preceding claims 1 to 10, characterized by the fact that the corrosion inhibitor is selected from the group consisting of additives based on superbasified calcium sulfonates, amine neutralized phosphates, naphthalenesulfonates of alkylated calcium, oxazoline derivatives, imidazole derivatives, succinic acid hemi-ester, N-alkylated benzotriazoles. High temperature oil according to any one of the preceding claims 1 to 11, characterized by the fact that the ionic liquid is selected from the group consisting of tetraalkylammonium- and tetraalkylphosphonium bis (trifluoromethylsulfonyl) imidated as, for example, example, trihexyl (tetradecyl) phosphonium-bis (trifluromethyl-sulfonyl) imide (HPDimide) and Methyltrioctyl ammonium bis (trifluoromethylsulfonyl) imide (Moimid), as well as tetralkylammonium and tetraalkylphosphonium tris (perfluoroethyl-trifluoroethyl-trifluoroethyl) (BuPPFET), trihexyl (tetradecyl) -tris (perfluoroethyl) trifluoro phosphate (HDPPFET), tetralkylammonium and tetraalkylphosphonium perfluorbutansulfonates, trihexyl (tetradecyl) phosphonium perfluorobutanesulfonates (HDP). 13. Use of the high temperature oil of any one of claims 1 to 12, in the lubrication sector of chain conveyors, painting workshops, textile industry, insulation materials industry, glass industry and belt lubrication used in power plants continuous wooden presses.

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