A kind of preparation method of low freezing point diesel antiwear agent
A technology of low freezing point and anti-wear agent, which is applied in chemical instruments and methods, petroleum industry, fuel additives, etc., can solve the problems of not meeting the use requirements and high freezing point of diesel anti-wear agent, and achieves easy deactivation, simple method, highly active effect
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Embodiment 1
[0023] A preparation method of a catalyst for preparing a low-freezing point diesel anti-wear agent, the preparation method is as follows: immersing porous ceramic microspheres in a suspension of nano-cerium oxide, stirring for 6 hours, then taking out and drying, calcining at 850° C. for 5 hours, Cooling to room temperature to obtain a catalyst for preparing a low freezing point diesel antiwear agent.
Embodiment 2
[0025] A preparation method of a low-freezing point diesel antiwear agent, the preparation method is: adding 100g of oleic acid, 45g of ethylene glycol, and 0.2g of the catalyst prepared in Example 1 into 25g of xylene, reacting at 142° C. for 45min, and then adding The temperature was raised to 225°C for 15 minutes, cooled to room temperature and then to -25°C, filtered to obtain a low freezing point diesel antiwear agent with a yield of 92.9%.
[0026] The freezing point of the low freezing point diesel antiwear agent is shown in Table 1 below.
[0027] The storage stability of the low freezing point diesel antiwear agent is shown in Table 2 below.
[0028] Adding the low freezing point diesel antiwear agent to diesel fuel can still ensure that the wear scar diameter is not greater than 320 μm for one month.
Embodiment 3
[0030] A preparation method of a low freezing point diesel antiwear agent, the preparation method is: adding 100g of oleic acid, 50g of ethylene glycol, and 0.2g of the catalyst prepared in Example 1 into 30g of xylene, reacting at 143°C for 40min, and then adding The temperature was raised to 228°C for 17 minutes, cooled to room temperature and then to -25°C, filtered to obtain a low freezing point diesel antiwear agent with a yield of 93.1%.
[0031] The freezing point of the low freezing point diesel antiwear agent is shown in Table 1 below.
[0032] The storage stability of the low freezing point diesel antiwear agent is shown in Table 2 below.
[0033] When the low freezing point diesel antiwear agent is added to diesel fuel, the diameter of the wear scar can still be guaranteed not to be greater than 320 μm for one month.
PUM
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