Method for improving stability of lubricating oil
A lubricating oil and stability technology, which is applied in the field of improving the stability of lubricating oil, can solve the problems of poor oxidation stability of vegetable oil and low-temperature performance obstacles, etc., and achieve the effect of overcoming the poor oxidation stability of vegetable oil, improving stability and good lubricating effect
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Embodiment 1
[0014] Mix 30 parts of lanolic acid, 10 parts of sodium hydroxide, 30 parts of ethanol, and 50 parts of water, heat to 60°C, adjust the pH value to 7, and cool down to 50°C to obtain a reaction solution;
[0015] Mix 20 parts of the above reaction solution, 50 parts of water, 10 parts of calcium chloride, and 10 parts of zinc sulfate, maintain the temperature at 50°C, react for 3 hours, filter with suction, wash with alcohol, wash with water, and dry to obtain the additive;
[0016] Heat 60 parts of castor oil to 40°C, add 20 parts of the above additives, 5 parts of polyoxyethylene polyoxypropylene pentaerythritol ether and 60 parts of water, stir at 35rps for 10 minutes; then add ethylene bis stearic acid amide 5 portion, stirred at a rotating speed of 30rps for 20min to obtain lubricating oil.
Embodiment 2
[0018] Mix 30 parts of lanolic acid, 10 parts of sodium hydroxide, 30 parts of ethanol, and 50 parts of water, heat to 90°C, adjust the pH value to 9, and cool down to 60°C to obtain a reaction solution;
[0019] Mix 20 parts of the above reaction solution, 50 parts of water, 10 parts of calcium chloride, and 10 parts of zinc sulfate, maintain the temperature at 60°C, react for 1 hour, filter with suction, wash with alcohol, wash with water, and dry to obtain the additive;
[0020] Heat 60 parts of castor oil to 45°C, add 20 parts of the above additives, 5 parts of polyoxyethylene polyoxypropylene pentaerythritol ether and 60 parts of water, stir at 40 rps for 20 minutes; then add ethylene bis stearic acid amide 5 portion, stirred at a rotating speed of 35rps for 30min to obtain lubricating oil.
Embodiment 3
[0022] Mix 20 parts of lanolic acid, 5 parts of sodium hydroxide, 30 parts of ethanol, and 40 parts of water, heat to 60°C, adjust the pH value to 7, cool down to 50°C, and obtain a reaction solution;
[0023] Mix 10 parts of the above reaction solution, 40 parts of water, 10 parts of calcium chloride, and 10 parts of zinc sulfate, maintain the temperature at 50°C, react for 1 hour, filter with suction, wash with alcohol, wash with water, and dry to obtain the additive;
[0024] Heat 50 parts of castor oil to 40°C, add 10 parts of the above additives, 5 parts of polyoxyethylene polyoxypropylene pentaerythritol ether and 50 parts of water, stir at 35rps for 10 minutes; then add ethylene bis stearic acid amide 5 portion, stirred at a rotating speed of 30rps for 20min to obtain lubricating oil.
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