Industrial lubricating oil composition and its production method
A lubricating oil composition, industrial technology, applied in the direction of lubricating composition, petroleum industry, additives, etc., can solve problems such as unavoidable contact and increased friction
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specific Embodiment approach
[0040] The deposit formation suppression performance related to Examples and Comparative Examples was evaluated as follows.
[0041] The gasoline engine intake valve deposit simulation test method (GB19592-2004) is adopted.
[0042] Specifically, clean the pipeline, oil circuit and sample bottle with xylene and n-heptane respectively; replace the sponge in the sample bottle, add the sample, insert the deposition plate into the groove and clamp it, insert the thermocouple, and time Set it to 70min; when the temperature rises to 165°C, open the air shut-off valve, control the air flow at 700L / h, and the air pressure at 80kPa; when it reaches 175°C, open the fuel valve, first discharge the air bubbles until there is no wheezing sound, and the float stabilizes at the index At "30"; control the sample to be sprayed within 70-75 minutes; close the fuel valve and air valve, keep at 175°C, re-time for 10 minutes, turn off the heating, and cool naturally; soak the deposition plate in n...
Embodiment 1
[0047] 1) Preparation of polyether. Add a mixture of 220g nonylphenol and 2.0g potassium hydroxide into the reactor, replace the air in the reactor with nitrogen, seal the reactor and heat it to 110°C, reduce the pressure to 2000 Pa, and evaporate the water , Introduce nitrogen into the reactor to restore normal pressure, raise the temperature to about 140°C, and continuously press 696g of propylene oxide into the reactor until the pressure does not change any more. After the reaction was completed, the reactant was cooled to room temperature, neutralized with acetic acid, and washed with water to remove the catalyst. The water and volatile matter are evaporated under reduced pressure to obtain the nonylphenol polyether product.
[0048] The chemical formula of the polyether obtained is:
[0049]
[0050] 2) Add 59g of sodium methoxide to 898g of polyether obtained in step 1) to react to generate sodium polyether alcohol, then add 76.5g of allyl chloride, the reaction tim...
Embodiment 2
[0057] 1) Preparation of polyether. Add a mixture of 220g nonylphenol and 2.0g potassium hydroxide into the reactor, replace the air in the reactor with nitrogen, seal the reactor and heat it to 110°C, reduce the pressure to 2000 Pa, and evaporate the water , feed nitrogen into the reactor to restore normal pressure, raise the temperature to about 140°C, and continuously press 864g of butylene oxide into the reactor until the pressure does not change any more. After the reaction was completed, the reactant was cooled to room temperature, neutralized with acetic acid, and washed with water to remove the catalyst. The water and volatile matter are evaporated under reduced pressure to obtain the nonylphenol polyether product.
[0058]
[0059] 2) Add 44g of sodium hydroxide to 1066g of polyether obtained in step 1) to react to generate sodium polyether alcohol, then add 76.5g of allyl chloride, the reaction time is 2-10h, and the reaction temperature is 50-150°C. After the r...
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