Coal-based anti-wear hydraulic oil and preparation method thereof
A kind of anti-wear hydraulic oil and hydraulic oil technology, applied in the field of hydraulic oil, can solve the problems of high pour point, adaptability to extreme low temperature weather, weak anti-oxidation performance and anti-wear performance, low viscosity index, etc., to increase added value, anti-oxidation Good performance and anti-wear performance, high viscosity index effect
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[0027] The second aspect of the present invention provides a method for preparing the coal-based anti-wear hydraulic oil described in the first aspect of the present invention, the method comprising: first mixing No. 6 coal-based III base oil and No. 10 coal-based III base oil Carry out the first mixing to obtain coal-based III base oil, then add antioxidant, extreme pressure anti-wear agent, metal deactivator, anti-rust agent, anti-emulsifier and anti-foaming agent to coal-based III base oil for the second Secondary mixing to obtain coal-based anti-wear hydraulic oil.
[0028] Wherein, the first mixing is stirred at 55-65°C for 1-3h, and the second mixing is stirred at 55-65°C for 1-3h.
Embodiment 1
[0031] (1) Mix No. 6 coal-based Group III base oil and No. 10 coal-based Group III base oil and stir at 60°C for 1 hour to obtain coal-based Group III base oil. Among them, No. 6 coal-based Group III base oil and No. 10 coal-based Group III base oil The mass ratio of coal-based Group III base oil is 1:0.9;
[0032] (2) 1.5g of 2,6-di-tert-butyl-p-cresol, 1.0g of diisooctyldiphenylamine, 2.0g of tricresyl phosphate, 1.5g of sulfurized isobutylene, and 2.0g of triphenyl thiophosphate, N, 0.5g of N-di-n-butylaminobenzenetriazole, 0.8g of barium salt of dinonylnaphthalene sulfonate, 0.6g of propylene oxide diamine polycondensate, and 0.1g of dimethyl silicone oil are added to the mixed 990g coal-based class III The base oil was stirred at 60°C for 2 hours, and then naturally cooled to room temperature to obtain coal-based anti-wear hydraulic oil. The test results of its physical and chemical properties are shown in Table 1.
Embodiment 2
[0034] (1) Mix No. 6 coal-based Group III base oil and No. 10 coal-based Group III base oil and stir at 60°C for 1 hour to obtain coal-based Group III base oil. Among them, No. 6 coal-based Group III base oil and No. 10 coal-based Group III base oil The mass ratio of coal-based Group III base oil is 1:0.6;
[0035] (2) 1.2g of 2,6-di-tert-butyl-p-cresol, 0.9g of diisooctyl diphenylamine, 2.0g of tricresyl phosphate, 1.4g of sulfurized isobutylene, and 1.6g of triphenyl thiophosphate, N, 0.5g of N-di-n-butylaminobenzenetriazole, 0.6g of barium dinonylnaphthalene sulfonate, 0.5g of propylene oxide diamine condensation polymer, and 0.06g of dimethyl silicone oil are added to the mixed 991.24g coal-based III The coal-based anti-wear hydraulic oil was obtained by stirring at 60°C for 2 hours and naturally cooling to room temperature. The physical and chemical properties of the oil are shown in Table 1.
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