Ethyl hexanol oxidation method: from 2-ethyl hexanol in sodium hydroxide aqueous solution by potassium permanganate oxidation to produce sodium isoctanoate, and then by sulfuric acid neutralization.

Ethyl hexenal oxidation method: 2-ethyl hexenal, an intermediate product of 2-ethyl hexanol synthesis by propylene carbonyl group, was used as raw material to obtain 2-ethyl hexanal by selective hydrogenation, and then 2-ethyl hexanol was produced by liquid phase oxidation.

Ethyl hexanol catalytic dehydrogenation esterification method: 2-ethyl hexanol under alkaline conditions, with cadmium oxide, zinc oxide, manganese dioxide as the catalyst, at 180-210℃ dehydrogenation to 2-ethyl hexanol (isoctanoate), isoctanoate saponification to produce the corresponding salt and alcohol, salt acidification by sulfuric acid, and then by distillation of isoctanoate products.