A kind of compound doped phosphotungstate catalyzed method for synthesizing epoxidized soybean oil
A technology of epoxidizing soybean oil and phosphotungstate, which is applied in chemical instruments and methods, catalytic reactions, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of low catalytic reaction efficiency and difficulty in obtaining high-quality cyclic Oxygenated soybean oil and other problems, to achieve the effect of excellent catalytic performance, high epoxy value, and clean synthesis process
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Embodiment 1
[0017] Preparation of the catalyst: Weigh 1.6 mmol cetyltrimethylammonium chloride, 0.7 mmol cobalt chloride and 1 mmol phosphotungstic acid and dissolve them in 20 ml of deionized water; after complete dissolution, at room temperature and continuous stirring Next, first slowly add the cetyltrimethylammonium chloride solution to the phosphotungstic acid solution, and then continue to slowly drop the cobalt chloride solution, and gradually form a white precipitate; after the addition, continue to stir for 0.5 h. Let stand and age for 1 h. After the white precipitate is separated by filtration and dried, the molecular formula can be obtained as [(C 16 H 33 )N(CH 3 ) 3 ] 1.6 Co 0.7 PW 12 O 40 The composite doped phosphotungstate.
Embodiment 2
[0019] Preparation of the catalyst: The preparation process is the same as in Example 1, except that the addition amount of cetyltrimethylammonium chloride is changed to 1 mmol, and the addition amount of cobalt chloride is changed to 1 mmol, the molecular formula can be obtained as [(C 16 H 33 )N(CH 3 ) 3 ]CoPW 12 O 40 The composite doped phosphotungstate.
Embodiment 3
[0021] Preparation of the catalyst: The preparation process is the same as in Example 1, except that the cetyltrimethylammonium chloride is changed to 2 mmol and the amount of cobalt chloride added is changed to 0.5 mmol, the molecular formula can be obtained as [(C 16 H 33 )N(CH 3 ) 3 ] 2 Co 0.5 PW 12 O 40 The composite doped phosphotungstate.
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