A kind of environment-friendly layered potassium phosphate calcium calcium base lubricating grease and preparation method thereof
A technology of potassium calcium calcium calcium-based lubricating grease and calcium-based lubricating grease, applied in lubricating compositions, petroleum industry, etc., can solve problems such as symbiosis of impurities, and achieve the effects of simple and easy preparation method, reduced cost, and abundant raw material resources
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Embodiment 1
[0027] First put 47.23 g of PAO8, 5.0 g of 12-hydroxystearic acid, and 0.5 g of calcium hydroxide cream into the kettle, heat up to 130 °C for saponification for 40 min, control the free acid and base to be qualified, pass water to cool down, and increase the stirring speed for water Add 6.0 g of methyl propyl disulfide and stir for 10 minutes after changing the phase until the material thickens into grease. Add 47.23 g of PAO8 to adjust the penetration. Grind it evenly with a three-roller machine to obtain the calcium-based base grease .
[0028] Add raw materials 0.074 g calcium hydroxide, 0.098 g phosphoric acid, and 0.75 g potassium chloride into a 30 mL polytetrafluoroethylene stainless steel kettle, and react in 1.8 mL aqueous solution. Temperature 100 ℃, react for 3 days, filter, wash with distilled water, and dry at room temperature to obtain layered potassium calcium phosphate CaKPO 4 ·H 2 O. figure 1 Be the XRD figure of this product.
[0029] layered potassium c...
Embodiment 2
[0031] First put 35.5 g epoxy soybean oil, 15.0 g stearic acid, and 8.0 g calcium hydroxide cream into the kettle, heat up to 132 °C for saponification for 38 min, control the free acid and base to be qualified, pass water to cool down, and increase the stirring speed for water until the material visibly thickens into fat, add 0.05 g of dilauryl thiodipropionate, stir for 12 minutes after changing the phase, add 35.5 g of epoxy soybean oil to adjust the cone penetration, grind evenly with a three-roller machine to obtain calcium Base base grease.
[0032] Add raw materials 1.11 g of calcium chloride, 17.4 g of dipotassium hydrogen phosphate and 8.7 g of potassium sulfate into a 30 mL polytetrafluoroethylene stainless steel kettle, and react in 20 mL of solution. Temperature 260 ℃, react for 0.1 day, filter, wash with distilled water, and dry at room temperature to obtain layered potassium calcium phosphate CaKPO 4 ·H 2 O.
[0033] layered potassium calcium phosphate CaKPO ...
Embodiment 3
[0035] Put 42.5 g of lard, 10.0 g of 12-hydroxystearic acid, and 2.0 g of calcium hydroxide cream into the kettle, heat up to 134°C for saponification for 36 minutes, control the free acid and base to be qualified, pass water to cool down, and increase the stirring speed to carry out Hydrate until the material thickens into fat, add 3.0 g of tert-butyl hydroxyanisole, stir for 14 minutes after changing the phase, add 42.5 g of lard to adjust the cone penetration, grind evenly with a three-roller machine to obtain calcium-based lubrication fat.
[0036]Add 0.32 g of calcium acetate, 2.72 g of potassium dihydrogen phosphate and 0.34 g of potassium hydroxide into a 30 mL polytetrafluoroethylene stainless steel kettle, and react in 10 mL of aqueous solution. Temperature 180 ℃, react for 3 days, filter, wash with distilled water, and dry at room temperature to obtain layered potassium phosphate CaKPO 4 ·H 2 O.
[0037] layered potassium calcium phosphate CaKPO 4 ·H 2 O 15.0 g ...
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