Lubrication oil composite type demulsifier and application thereof

Abstract

The invention relates to a lubrication oil composite demulsifier which is composed of the following components in percent by weight relative to 100 percent of the total weight of the composite demulsifier: 0.5-15 percent of kilfoam, 1-25 percent of demulsifier and 60-98 percent of solvent, wherein the kilfoam is one or more components comprising silicone oil, fluorine-bearing silicone oil and acrylate copolymer, and the demulsifier is a polyethers demulsifier. The invention combines the kilfoam and the demulsifier and gives a full play to the advantages of the kilfoam and the demulsifier, thereby further improving the emulsification resistance of oils.

Description

technical field

[0001] The invention relates to a composite demulsifier for lubricating oil and its application. Background technique

[0002] Demulsifiers used in lubricating oils are often also called demulsifiers. There are many reasons for poor water separation or emulsification of lubricating oil. One is the high viscosity of lubricating oil; the other is that various additives are added to industrial lubricating oil, most of which are surfactants with emulsifying function; Compounds that deteriorate the demulsibility of the oil. Deepening the refining depth of base oil and selecting appropriate additives are of course a problem that should be considered first, but adding demulsifier is the main way to improve the demulsibility of lubricating oil.

[0003] After adding the demulsifier, the demulsifier is adsorbed on the oil / water interface film, which can change the oil / water interfacial tension, eliminate the obstacle of the mutual combination of the dispersed phase...

Examples

example 1

[0018] Mix fluorine-containing silicone oil, polyether-type demulsifier 1, amyl ketone, and solvent oil for rubber industry in a ratio of 1:2:14:83, and stir them evenly by mechanical or manual at a temperature of 20°C-50°C to prepare Composite demulsifier 1, in which the structure of the main component of fluorine-containing silicone oil is trifluoropropyl modified polydimethylsiloxane (FF160), and the structure of the main component of polyether demulsifier 1 is amine and tetrapolyoxypropylene The reactant (T1001), the total content of fluorine-containing silicone oil and polyether demulsifier 1 in the composite demulsifier 1 is about 3% (mass fraction). According to the amount of 0.30W%, the compound demulsifier 1 was added to the industrial gear oil, and the test results of the anti-emulsification performance of the oil are shown in Table 1.

[0019] Table 1. Anti-emulsification performance of compound demulsifier 1

[0020]

[0021] It can be seen from Table 1 that in...

example 2

[0023] Mix silicone oil, acrylate copolymer, polyether-type demulsifier 1, and solvent oil in a ratio of 1:2:6:91, and mix it mechanically or manually at a temperature of 20°C-50°C to form a compound demulsifier 2. The structure of the main component of silicone oil is dimethyl siloxane polymer (T901), the structure of the main component of acrylate copolymer is the copolymer of acrylate and ether (T912), and the structure of the main component of polyether demulsifier 1 It is the reactant (T1001) of amine and tetrapolyoxypropylene, and the content of silicone oil, acrylate copolymer and polyether demulsifier 1 in composite demulsifier 2 is about 9% (mass fraction) in total. According to the amount of 0.10W%, the composite demulsifier 2 was added to the industrial gear oil, and the anti-emulsification performance test results of the oil are shown in Table 2.

[0024] Table 2. Anti-emulsification performance of compound demulsifier 2

[0025]

[0026] It can be seen from Ta...

example 3

[0028] Mix silicone oil, polyether type demulsifier 1, and aviation kerosene at a ratio of 11:22:67 (expressed in terms of percentage content), and mix them evenly by mechanical or manual at a temperature of 20°C-50°C to form a compound demulsifier 3. The structure of the main component of silicone oil is dimethyl siloxane polymer (T901), and the structure of the main component of polyether demulsifier 1 is the reactant of amine and tetrapolyoxypropylene (T1001). The total content of silicone oil and polyether demulsifier 1 in 3 is about 33% (mass fraction). According to the amount of 0.03W%, the compound demulsifier 3 was added to the industrial gear oil, and the anti-emulsification performance test results of the oil are shown in Table 3.

[0029] Table 3. Anti-emulsification performance of compound demulsifier 3

[0030]

[0031] It can be seen from Table 3 that in industrial gear oil without adding demulsifier, adding a demulsifier (polyether demulsifier 1) and adding ...

technical field

[0001] The invention relates to a composite demulsifier for lubricating oil and its application. Background technique

[0002] Demulsifiers used in lubricating oils are often also called demulsifiers. There are many reasons for poor water separation or emulsification of lubricating oil. One is the high viscosity of lubricating oil; the other is that various additives are added to industrial lubricating oil, most of which are surfactants with emulsifying function; Compounds that deteriorate the demulsibility of the oil. Deepening the refining depth of base oil and selecting appropriate additives are of course a problem that should be considered first, but adding demulsifier is the main way to improve the demulsibility of lubricating oil.

[0003] After adding the demulsifier, the demulsifier is adsorbed on the oil / water interface film, which can change the oil / water interfacial tension, eliminate the obstacle of the mutual combination of the dispersed phase...

Examples

example 1

[0018] Mix fluorine-containing silicone oil, polyether-type demulsifier 1, amyl ketone, and solvent oil for rubber industry in a ratio of 1:2:14:83, and stir them evenly by mechanical or manual at a temperature of 20°C-50°C to prepare Composite demulsifier 1, in which the structure of the main component of fluorine-containing silicone oil is trifluoropropyl modified polydimethylsiloxane (FF160), and the structure of the main component of polyether demulsifier 1 is amine and tetrapolyoxypropylene The reactant (T1001), the total content of fluorine-containing silicone oil and polyether demulsifier 1 in the composite demulsifier 1 is about 3% (mass fraction). According to the amount of 0.30W%, the compound demulsifier 1 was added to the industrial gear oil, and the test results of the anti-emulsification performance of the oil are shown in Table 1.

[0019] Table 1. Anti-emulsification performance of compound demulsifier 1

[0020]

[0021] It can be seen from Table 1 that in...

example 2

[0023] Mix silicone oil, acrylate copolymer, polyether-type demulsifier 1, and solvent oil in a ratio of 1:2:6:91, and mix it mechanically or manually at a temperature of 20°C-50°C to form a compound demulsifier 2. The structure of the main component of silicone oil is dimethyl siloxane polymer (T901), the structure of the main component of acrylate copolymer is the copolymer of acrylate and ether (T912), and the structure of the main component of polyether demulsifier 1 It is the reactant (T1001) of amine and tetrapolyoxypropylene, and the content of silicone oil, acrylate copolymer and polyether demulsifier 1 in composite demulsifier 2 is about 9% (mass fraction) in total. According to the amount of 0.10W%, the composite demulsifier 2 was added to the industrial gear oil, and the anti-emulsification performance test results of the oil are shown in Table 2.

[0024] Table 2. Anti-emulsification performance of compound demulsifier 2

[0025]

[0026] It can be seen from Ta...

example 3

[0028] Mix silicone oil, polyether type demulsifier 1, and aviation kerosene at a ratio of 11:22:67 (expressed in terms of percentage content), and mix them evenly by mechanical or manual at a temperature of 20°C-50°C to form a compound demulsifier 3. The structure of the main component of silicone oil is dimethyl siloxane polymer (T901), and the structure of the main component of polyether demulsifier 1 is the reactant of amine and tetrapolyoxypropylene (T1001). The total content of silicone oil and polyether demulsifier 1 in 3 is about 33% (mass fraction). According to the amount of 0.03W%, the compound demulsifier 3 was added to the industrial gear oil, and the anti-emulsification performance test results of the oil are shown in Table 3.

[0029] Table 3. Anti-emulsification performance of compound demulsifier 3

[0030]

[0031] It can be seen from Table 3 that in industrial gear oil without adding demulsifier, adding a demulsifier (polyether demulsifier 1) and adding ...

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