A kind of nanometer lanthanum silicate lubricating oil additive and preparation method thereof
A lubricating oil additive, lanthanum silicate technology, applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of unsatisfactory storage stability of lubricating oil, failure to achieve particle distribution, unfavorable promotion and use, etc., to achieve long-term guarantee Stable storage, less additives, and convenient use of finished products
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Embodiment 1
[0042]Dissolve 25Kg of sodium metasilicate in 1000L of deionized water, stir at 60°C for 40min; then add 0.25Kg of aluminate coupling agent and 0.25Kg of oleic acid; stir at 60°C for 35min, then dissolve 14Kg of lanthanum nitrate in 100L of ethanol , stirred at 60°C for 40min; then the two solutions were mixed, then pumped into a stainless steel reactor, reacted at 75°C for 26h, and cooled naturally; the reaction product was washed and filtered with deionized water and ethanol several times, and dried to obtain Nano-lanthanum silicate particles; as attached figure 1 The particle size of the nano-lanthanum silicate particles prepared by the above-mentioned method is 60-80nm, attached figure 2 The active ingredient La of the nano-lanthanum silicate particle prepared by the above method shown 2 (SiO 3 ) 3 The content is higher. attached image 3 The scanning electron micrographs of the nano-lanthanum silicate particles prepared by the above-mentioned method show that the pa...
Embodiment 2
[0044] Dissolve 26Kg of sodium metasilicate in 1000L of deionized water, stir at 55°C for 45min; then add 0.26Kg of titanate coupling agent and 0.26Kg of oleic acid; stir at 60°C for 35min, then dissolve 15Kg of lanthanum nitrate in 100L of ethanol , stirred at 60°C for 35min; then the two solutions were mixed, then pumped into a stainless steel reactor, reacted at 80°C for 20h, and cooled naturally; the reaction product was washed and filtered with deionized water and ethanol several times, and dried to obtain Nano-lanthanum silicate particles; finally, 80 parts of commercially available HVI150 base oil, 5 parts of polymer polyisobutylene succinimide dispersant and 15 parts of nano-lanthanum silicate particles were added to the high-speed shear reaction kettle at 80°C After high-speed shearing and dispersion for 10 hours, pump it into a high-temperature esterification reaction kettle and heat up to 150°C within 2 hours, and continue high-temperature distillation and dispersion...
Embodiment 3
[0046] Dissolve 25Kg of sodium metasilicate in 1000L of deionized water, stir at 65°C for 35min; then add 0.25Kg of aluminate coupling agent and 0.25Kg of stearic acid; stir at 60°C for 35min, then dissolve 14Kg of lanthanum nitrate into 100L In ethanol, stir at 60°C for 45 minutes; then mix the two solutions, then pump them into a stainless steel reactor, react at 75°C for 30 hours, and then cool naturally; use deionized water and ethanol to wash and filter the reaction product several times, and dry Obtain nano-lanthanum silicate particles; finally, 80 parts of commercially available HVI150 base oil, 5 parts of polymer polyisobutylene succinimide dispersant and 15 parts of nano-lanthanum silicate particles were added to a high-speed shear reactor at 80°C After high-speed shearing and dispersing for 8 hours, pump it into a high-temperature esterification reaction kettle to raise the temperature to 150°C within 2 hours, and continue high-temperature distillation and dispersion ...
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