A method for selectively oxidizing oil shale to prepare benzene polycarboxylic acid and small molecule fatty acid
A technology for benzene polycarboxylic acid and oxidized oil, which is applied in chemical instruments and methods, preparation of organic compounds, preparation of carboxylate, etc., can solve the problem of strict reaction conditions, affecting the industrialization process of benzene polycarboxylic acid, and harsh catalyst requirements, etc. problems, achieve high application potential, simple process, and mild reaction conditions
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Embodiment 1
[0024] This example shows that the oil shale in Yilan County is used as raw material, the mass ratio of alkali and oil shale in the reaction material is 3:1, the reaction temperature is 180°C-260°C, the reaction pressure is 5MPa, and the reaction time is 1h. process method.
[0025] Take 1g of Yilan County oil shale (particle size 0-0.075mm), 3g of sodium hydroxide, and 20mL of deionized water in a 50mL high-temperature and high-pressure reactor, fill the air in the reactor with oxygen replacement, and finally fill the initial Oxygen at a pressure of 5.0MPa. Put the reaction kettle into a heating furnace with a preset temperature, turn on the stirring, and control the stirring speed to 200r / min. After the temperature rises to the set temperature, the stopwatch will start timing, stop stirring after 1h, and immediately take out the reaction kettle and put it in The reaction was terminated in a cold water bath. After the reaction kettle is cooled, take out the reacted mixture,...
Embodiment 2
[0031] This example illustrates the process of using oil shale in Yilan County as raw material, the mass ratio of alkali and oil shale in the reaction material is 3:1, the reaction temperature is 220°C, the oxygen pressure is 3MPa-7MPa, and the reaction time is 1h method.
[0032]Take 1g of Yilan County oil shale (particle size 0-0.075mm), 3g of sodium hydroxide, and 20mL of deionized water in a 50mL high-temperature and high-pressure reactor, fill the air in the reactor with oxygen replacement, and finally fill the initial Oxygen with a pressure of 3MPa ~ 7MPa. Put the reaction kettle into a heating furnace with a preset temperature, turn on the stirring, and control the stirring speed to 200r / min. After the temperature rises to the set temperature of 220°C, the stopwatch starts timing, stop stirring after 1h, and take out the reaction kettle immediately Place in a cold water bath to terminate the reaction. After the reaction kettle is cooled, take out the reacted mixture, ...
Embodiment 3
[0036] This example shows that the oil shale in Yilan County is used as the raw material, the mass ratio of alkali and oil shale in the reaction material is 1:1 to 6:1, the reaction temperature is 220°C, the reaction pressure is 5MPa, and the reaction time is 1h process method.
[0037] Take 1g of Yilan County oil shale (particle size 0-0.075mm), 1-6g of sodium hydroxide, and 20mL of deionized water in a 50mL high-temperature and high-pressure reactor, fill with oxygen to replace the air in the reactor, and finally Filled with oxygen with an initial pressure of 5MPa. Put the reaction kettle into a heating furnace with a preset temperature, turn on the stirring, and control the stirring speed to 200r / min. After the temperature rises to the set temperature of 220°C, the stopwatch starts timing, stop stirring after 1h, and take out the reaction kettle immediately Place in a cold water bath to terminate the reaction. After the reaction kettle is cooled, take out the reacted mixt...
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