High-temperature thermally reversible composite soap lubricating grease and preparation method thereof
A reversible, complex soap technology, applied in lubricating compositions, petroleum industry, etc.
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[0029] The preparation method of above-mentioned high-temperature thermoreversible complex soap grease comprises the following steps:
[0030] ⑴Add the first part of base oil to the reaction vessel, raise the temperature and add straight-chain saturated fatty acid and aromatic acid, add aluminum trimer of isopropoxide after each component is completely melted, and keep warm for one end;
[0031] ⑵ After heating up, add water, continue to heat up during the process of adding water, then add the second part of base oil, and refine for a period of time after heating;
[0032] (3) In step (2), add the remaining base oil to adjust the consistency to complete the preparation.
[0033] Wherein, the weight of the first part of the base oil described in step (1) accounts for 60-70% of the total weight of the base oil, after heating up to 70-85°C, add straight-chain saturated fatty acid and aromatic acid, stir at constant temperature until completely melted, then add isopropanol The al...
Embodiment 1
[0040] Add 1000g of 350SN base oil into the saponification kettle under normal pressure, stir and heat up to 70°C, add 103g of stearic acid and 46g of benzoic acid respectively, and stir at constant temperature until completely melted. Then add 100g of aluminum isopropoxide trimer, keep the temperature at 90°C for half an hour, raise the temperature to 125°C, keep the temperature constant for 15 minutes, slowly add 6g of water, slowly raise the temperature, and the material becomes thick. After 1.5 hours, the temperature was raised to 160°C, 200g of base oil 150BS was added, heated to 200°C, and refined at high temperature for 1 hour. Then pour the material into the blending kettle, add 100g of 350SN and 250g of 150BS to adjust the consistency of the remaining base oil, cool, cut for 2 hours, homogenize, degas, and fill to obtain high-temperature thermoreversible complex soap grease .
Embodiment 2
[0042] Add 1000g of 500N base oil into an atmospheric pressure saponification kettle, stir and heat up to 85°C, add 103g of stearic acid and 46g of benzoic acid respectively, and stir at constant temperature until completely melted. Then add 100g of aluminum isopropoxide trimer, keep the temperature at 70°C for half an hour, raise the temperature to 135°C, keep the temperature constant for 15 minutes, slowly add 6g of water, slowly raise the temperature, and the material becomes thick. After 1.5 hours, heat up to 170°C, add 200g of base oil 150BS, heat to 190°C, refine at high temperature for 1 hour, then pour the material into a blending kettle, add 100g of remaining base oil 500N and 250g of 150BS to adjust the consistency, Cooling, shearing for 2 hours, homogenization, degassing, and filling to obtain high-temperature thermoreversible complex soap grease.
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