Composite pour point depressant for lubricating oil and preparation method thereof
A technology for pour point depressant and lubricating oil, which is applied in lubricating compositions, additives, petroleum industry and other directions to achieve the effects of good pour point depressant effect, low cost of raw materials and simple preparation process
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Embodiment 1
[0039] 1. Preparation of modified sacha inchi oil:
[0040] Add 100 parts of Sacha Inchi oil to a three-neck flask, insert a separatory funnel containing 5 parts of acetic acid, 10 parts of 2% hydrogen peroxide and 9 parts of concentrated sulfuric acid at one end of the bottle mouth, preheat to 40°C, stir, and keep the temperature At about 40°C, the dropwise addition was completed in 40 minutes, then the temperature was raised to 62°C, and the reaction was continued for about 2.5 hours to obtain the epoxidized sacha inchi oil product. Pour out the reaction material, put it in a separatory funnel, wash it with 0.8% pure lye to pH=4, let it stand for liquid separation, and dry the oil phase to obtain epoxidized sacha inchi oil.
[0041] The process is that Sacha Sacha Sacha oil first uses 2% hydrogen peroxide (H 2 o 2 ), acetic acid, catalyst (98% concentrated sulfuric acid) for epoxidation, saturated double bonds, thereby improving the oxidation resistance of Sacha Sacha Sach...
Embodiment 2
[0058] 1. Preparation of modified sacha inchi oil:
[0059] Add 100Kg sacha sacha inchi oil into the enamel reaction kettle, preheat to 40°C, add 4Kg acetic acid, 1.5% hydrogen peroxide 12Kg, 10Kg concentrated sulfuric acid (98%) in turn, stir evenly, keep the temperature at about 40°C, add dropwise for 40 minutes After completion, the temperature was raised to 60° C., and the reaction was continued for about 3 hours to obtain the epoxidized sacha inchi oil product. The reaction material was poured out, washed with 0.7% pure alkali solution to pH = 4, left to separate the liquid, and the oil phase was separated and dried to obtain the epoxidized sacha inchi oil.
[0060]
[0061] Then use long-chain isooctyl alcohol to carry out esterification reaction with epoxidized sacha inchi oil under the participation of catalyst (98% concentrated sulfuric acid) to obtain ether ester.
[0062]
[0063] Add 30Kg of isooctyl alcohol and 20Kg of catalyst (98% concentrated sulfuric ac...
Embodiment 3
[0077] Preparation of modified sachasacha oil:
[0078] 1. Add 100 parts sacha sacha inchi oil to the enamel reaction kettle, preheat to 40°C, add 6 parts acetic acid, 8 parts 3% hydrogen peroxide, and 9 parts concentrated sulfuric acid (98%) in sequence, stir well, and keep the temperature at about 40°C, the dropwise addition was completed in 40 minutes, the temperature was raised to 64°C, and the reaction was continued for about 3 hours to obtain the epoxidized Sacha Sacha Inchi oil product. The reaction material was poured out, washed with 1% pure alkali solution to pH = 4, left to separate the liquid, and the oil phase was separated and dried to obtain the epoxidized sacha inchi oil.
[0079]
[0080] 2. Then use long-chain isooctyl alcohol to carry out esterification reaction with epoxidized sacha inchi oil under the participation of catalyst (98% concentrated sulfuric acid) to obtain ether ester.
[0081]
[0082] Add 3 parts of isooctyl alcohol and 2 parts of cat...
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