A kind of preparation method of diesel oil antiwear agent
An anti-wear agent and diesel oil technology, which is applied in the field of diesel anti-wear agents, can solve the problems of excessive wear scar diameter, large amount of addition, high freezing point of anti-wear agent, etc., and achieve good cleaning and dispersibility, less addition amount, and excellent lubricating effect Effect
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Embodiment 1
[0027] Embodiments 1 to 5 are specific implementations of the preparation method of a diesel antiwear agent of the present invention, wherein embodiment 1 is the best embodiment. The raw material glycerol in the examples is produced by Shandong Gaomi Youqiang Chemical Co., Ltd., the model is industrial grade, and the content is ≥99.5%. The raw material ricinoleic acid in the examples is produced by Binzhou Tianxing Group, the model is industrial grade, the content is ≥99%, the acid value is less than 2mg KOH / g, the iodine value is 86 gl2 / 100g, the saponification value is 186mg KOH / g, and the hydroxyl value is 163 mg KOH / g. The order of the step of preparing polyglycerol and the step of preparing polyricinoleic acid in the embodiment can be changed, and the step of preparing antiwear agent is located after the step of preparing polyglycerol and the step of preparing polyricinoleic acid.
[0028] Example 1
[0029] Preparation of polyglycerol: Take a container and add 300 gram...
Embodiment 2
[0033] Preparation of polyglycerol: Take a container and add 300 grams of glycerin, vacuumize the container to -0.09mpa, then pass nitrogen gas until the pressure inside the container is 0.2mpa, when the temperature rises to 125~130°C, add 15 grams of glycerin to the container The mass percentage concentration is 30% sodium hydroxide aqueous solution. Under the protection of nitrogen, the temperature of the material in the container is raised to 250~260°C for polymerization reaction dehydration. The material in the container is kept warm at 90~110°C for standby to obtain pentaglycerol;
[0034] Preparation of polyricinoleic acid: Take another container and add 300 grams of ricinoleic acid, vacuumize the container to -0.09mpa, then pass nitrogen gas into the container until the pressure in the container is 0.2mpa, and raise the temperature to 125~130°C under the protection of nitrogen gas At this time, add 6 grams of potassium persulfate to the container, and then carry out pol...
Embodiment 3
[0037] Preparation of polyglycerol: Take a container and add 300 grams of glycerin, vacuum the container to -0.09mpa, then pass nitrogen gas until the pressure in the container is 0.2mpa, and heat up to 129~131°C under the protection of nitrogen, pour into the container Add 15 grams of sodium hydroxide aqueous solution with a concentration of 30% in mass percentage, and raise the temperature of the material in the container to 250~260°C under the protection of nitrogen to carry out polymerization dehydration. At the end point, keep the material in the container at 90-110°C for standby to obtain tetraglycerol;
[0038] Preparation of polyricinoleic acid: Take another container and add 300 grams of ricinoleic acid, vacuumize the container to -0.09mpa, then pass nitrogen gas into the container until the pressure in the container is 0.2mpa, and raise the temperature to 129~131°C under the protection of nitrogen gas 7 grams of potassium persulfate was added to the container, and th...
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Abstract
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