Synthetic method of trimethylolpropane tricaprylate
A technology of trimethylolpropane and isooctanoate, which is applied in the direction of chemical instruments and methods, reaction preparation of carboxylic acid/symmetric anhydride and saturated hydrocarbon, metal/metal oxide/metal hydroxide catalyst, etc., can solve quality problems Easy to change, affect product stability and other issues, to achieve good hydrolytic stability, good biodegradability, low volatility effect
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Embodiment 1
[0016] Embodiment 1: successively add trimethylolpropane 174g, isooctanoic acid 646g, stannous oxide 0.41g in the reactor, pass N 2 , heat up to 215 ℃ under stirring, and react at this temperature to distill out the water generated by the reaction, after 8 hours of reaction, anhydrous distillates, and then the material is transferred to the deacidification kettle, the vacuum degree is 50Pa, the temperature is 140 ℃ Deacidified for 1.0h, cooled to 70°C and filtered to obtain trimethylolpropane isooctanoate.
Embodiment 2
[0017] Embodiment 2: successively add trimethylolpropane 174g, isooctanoic acid 683g, iron oxide 0.5999g in the reactor, pass N 2 , heat up to 200°C under stirring, and react at this temperature to distill out the water generated by the reaction, after 9 hours of reaction, anhydrous distillates, then the material is transferred to the deacidification kettle, the vacuum degree is 60Pa, the temperature is 130°C Deacidified for 1.0h, cooled to 70°C and filtered to obtain trimethylolpropane isooctanoate.
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