Extreme pressure anti-wear additive and preparation method thereof
An extreme pressure anti-wear and additive technology, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of poor water resistance, achieve good water resistance, solve the effects of easy settlement and low consumption
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Embodiment 1
[0034] An extreme pressure antiwear additive, comprising the following raw materials in parts by weight:
[0035] Industrial salicylic acid 10 parts, boric acid 80 parts, lithium hydroxide 3 parts, calcium hydroxide 4 parts, potassium hydroxide 40 parts, water 70 parts, base oil A 120 parts, base oil B 60 parts.
[0036] The base oil A is high-viscosity highly refined mineral oil 150BS; the base oil B is a base oil synthesized from esters.
[0037] The extreme pressure antiwear additive and its preparation method specifically comprise the following steps:
[0038] (1) Put base oil A and industrial salicylic acid into the reactor, and stir for 10-20 minutes while heating up;
[0039] (2) When the temperature is raised to 60-80° C., lithium hydroxide, calcium hydroxide and 10% water are prepared into lye and put into the reaction kettle to stir evenly with the mixture of step (1), and slowly heat up for dehydration;
[0040] (3) After the dehydration is completed, when the tem...
Embodiment 2
[0046] An extreme pressure antiwear additive, comprising the following raw materials in parts by weight:
[0047] 20 parts of industrial salicylic acid, 100 parts of boric acid, 3-4 parts of lithium hydroxide, 4-6 parts of calcium hydroxide, 60 parts of potassium hydroxide, 90 parts of water, 160 parts of base oil A, and 80 parts of base oil B.
[0048] The base oil A is high-viscosity highly refined mineral oil 150BS; the base oil B is a base oil synthesized from esters.
[0049] The extreme pressure antiwear additive and its preparation method specifically comprise the following steps:
[0050] (1) Put base oil A and industrial salicylic acid into the reactor, and stir for 10-20 minutes while heating up;
[0051] (2) When the temperature is raised to 60-80° C., lithium hydroxide, calcium hydroxide and 10% water are prepared into lye and put into the reaction kettle to stir evenly with the mixture of step (1), and slowly heat up for dehydration;
[0052] (3) After the dehydra...
Embodiment 3
[0058] An extreme pressure antiwear additive, comprising the following raw materials in parts by weight:
[0059] Industrial salicylic acid 16 parts, boric acid 90 parts, lithium hydroxide 3.5 parts, calcium hydroxide 5 parts, potassium hydroxide 50 parts, water 80 parts, base oil A 140 parts, base oil B 70 parts.
[0060] The base oil A is high-viscosity highly refined mineral oil 150BS; the base oil B is a base oil synthesized from esters.
[0061] The extreme pressure antiwear additive and its preparation method specifically comprise the following steps:
[0062] (1) Put base oil A and industrial salicylic acid into the reactor, and stir for 10-20 minutes while heating up;
[0063] (2) When the temperature is raised to 60-80° C., lithium hydroxide, calcium hydroxide and 10% water are prepared into lye and put into the reaction kettle to stir evenly with the mixture of step (1), and slowly heat up for dehydration;
[0064] (3) After the dehydration is completed, when the t...
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