A type of manufacturing modern technology of Allyl Caproate is identified because: consist of the complying with actions:
A. Esterification: Hexanoic acid, allyl alcohol as well as p-toluenesulfonic acid are taken into the esterification pot symmetrical. Release the material from the top of the tower as well as wait till the leading temperature rises to 92 ° C. At the same time, 150L/hr of 2-methylbutyric acid and also 80L/hr of ethanol are presented from the high-level container, as well as the heavy steam stress of the esterification kettle is regulated to 0.5 Mpa;
B. Vacuum fractionation: The crude ester steamed from the esterification storage tank goes into the unrefined steamer with the oil-water separator for vacuum cleaner distillation. The vacuum cleaner level is controlled at -0.08 Mpa, the vapor stress is about 0.3 Mpa, and the temperature level of the storage tank is not less than 120 ° C. The temperature is regulated at 50-60 ° C, and the reduced boiling product (allyl alcohol) evaporated from the top of the tower is pumped right into the esterification pot;
C. Vacuum cleaner rectification: the low product of the still goes into the rectification kettle with the pump with the circulation meter, the vacuum cleaner level of the correction kettle is managed at -0.09 Mpa, the top temperature level is regulated at 110-115 ° C, as well as the ended up product steamed from the top of the tower goes through the flow meter via the pump Going into the allyl hexanoate finished item tank, the high boiling material (caproic acid) at the end of the distillation kettle is gone back to the esterification pot via a pump.
Include a certain amount of propylene alcohol as well as caproic acid to a four-necked container geared up with a thermometer, water separator, reflux condenser tube, and electrical stirrer.
(0.1 mol), hydroquinone (0.05 g), toluene as well as stimulant (nano rare earth composite superacid La3+/ SO42-/ TiO2), start the stirrer, control the temperature, reflux after a certain time period, allow stand, trendy, pour Out of the response option. The organic phases were divided, combined, washed and also dried. Add cuprous chloride to the filtrate for purification (0.05 g cuprous chloride/0.1 mol crude pineapple aldehyde), as well as collect the 186-188 ° C fraction to get the item.