High-temperature overload transformer oil and preparation method thereof
A transformer oil, high temperature technology, used in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of poor kinematic viscosity of transformer oil, poor anti-oxidative aging performance, and inability to obtain high flash point and good oil quality. , the effect of good gassing
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Embodiment 1
[0021] Select 2kg of hydroxystearin, 2kg of dibutyl phosphophthalate, 3kg of sulfurized calcium alkylphenate, 2kg of methyl acrylate, 80kg of hydrogenated base oil, 1kg of kaolin, 2kg of 2,6-di-tert-butyl p-cresol, 2(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol 2kg;
[0022] a. Choose a blending tank, put the base oil into the blending tank through the oil pump, start stirring, heat up to 40°C, then add clay and stir for 1 hour, then filter the raw materials twice through the diaphragm oil filter and the plate and frame oil filter ;
[0023] b. Add 2,6-di-tert-butyl-p-cresol and 2(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol in the raw material according to the amount of raw material, Stir well;
[0024] c. After premixing the hydroxystearin, dibutyl phosphophthalate, sulfurized alkylphenate calcium and methyl acrylate in the raw materials, add them into the raw materials in step b, and stir evenly;
[0025] d. Refining and filtering the homogeneously mixed material in ...
Embodiment 2
[0027] Hydroxystearin 4kg, dibutyl phosphophthalate 4kg, sulfurized calcium alkylphenate 5kg, methyl acrylate 4kg, hydrogenated base oil 90kg, montmorillonite 3kg, 2,6-di-tert-butyl-p-cresol 4kg , 2(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol 4kg;
[0028] a. Choose a blending tank, put the base oil into the blending tank through the oil pump, start stirring, heat up to 60°C, then add clay and stir for 1 hour, then filter the raw materials twice through the diaphragm oil filter and the plate and frame oil filter ;
[0029] b. Add 2,6-di-tert-butyl-p-cresol and 2(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol in the raw material according to the amount of raw material, Stir well;
[0030] c. After premixing the hydroxystearin, dibutyl phosphophthalate, sulfurized alkylphenate calcium and methyl acrylate in the raw materials, add them into the raw materials in step b, and stir evenly;
[0031] d. Refining and filtering the homogeneously mixed material in the above step c t...
Embodiment 3
[0033] Hydroxystearin 3kg, dibutyl phosphophthalate 3kg, sulfurized calcium alkylphenate 4kg, methyl acrylate 3kg, hydrogenated base oil 85kg, diatomaceous earth 2kg, 2,6-di-tert-butyl-p-cresol 3kg , 2(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol 3kg;
[0034] a. Choose a blending tank, put the base oil into the blending tank through the oil pump, start stirring, heat up to 50°C, then add white clay and stir for 1 hour, then filter the raw materials twice through the diaphragm oil filter and the plate and frame oil filter ;
[0035] b. Add 2,6-di-tert-butyl-p-cresol and 2(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol in the raw material according to the amount of raw material, Stir well;
[0036] c. After premixing the hydroxystearin, dibutyl phosphophthalate, sulfurized alkylphenate calcium and methyl acrylate in the raw materials, add them into the raw materials in step b, and stir evenly;
[0037] d. Refining and filtering the homogeneously mixed material in the above...
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