Process for making isopentyl aldehyde from isobutene
A technology for isobutene and isovaleraldehyde, applied in the field of preparing isovaleraldehyde, can solve the problems of high production cost, large environmental pollution, less sources and the like, and achieves the effects of low production cost, less environmental pollution and easy separation
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Embodiment 1
[0011] In a 100ml reactor, add 10.24mmol of rhodium catalyst, after fully replaced by inert gas, add 11.8g (210mmol) of isobutene, and feed CO, H with a volume ratio of 1:1. 2 After the gas mixture, the pressure was increased to 5Mpa, the temperature was raised, and the reaction was started. After 2 hours of reaction, the temperature was lowered to stop the reaction, and 17.5 grams of the product were obtained. The product was analyzed by gas chromatography, and the content was 98.5%.
Embodiment 2
[0013] In a 100ml reactor, add 8.33mmol of rhodium catalyst, after fully replaced by inert gas, add 11.8g (210mmol) of isobutene, and feed CO, H with a volume ratio of 1:1. 2 After mixing the gas, the pressure was raised to 8Mpa, the temperature was raised, and the reaction was started. After 3 hours of reaction, the temperature was lowered to stop the reaction, and 17.3 grams of the product were obtained. The product was analyzed by gas chromatography, and the content was 98.2%.
Embodiment 3
[0015] In a 100ml reactor, add 7.00mmol of rhodium catalyst, after fully replaced by inert gas, add 11.8g (210mmol) of isobutene, and pass through CO, H with a volume ratio of 1:1. 2 After mixing the gas, the pressure was raised to 10Mpa, the temperature was raised, and the reaction was started. After 4 hours of reaction, the temperature was lowered to stop the reaction, and 17.1 grams of the product were obtained. The product was analyzed by gas chromatography, and the content was 98%.
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