Production method of 2-Methyl-2-butanol

Production method of 2-Methyl-2-butanol:
(1) using acetone and acetylene as raw materials, obtained by hydrogenation and hydrogenation. The acetylene is dissolved in liquid ammonia, mixed with acetone and a catalyst, and sent to an acetylation reactor. The reaction solution is flashed to separate unreacted acetylene and ammonia, and unreacted acetone is distilled off to obtain methylbutynol. The reaction proceeds to a hydrogenation reactor to form tert-amyl alcohol, which is dehydrated and purified to obtain 2-Methyl-2-butanol.
(2) It is formed by adding water to isopentenyl.
(3) It is obtained by fractional distillation of a mixed alcohol produced by chlorination and hydrolysis of pentane. The raw material pentane is first dehydrated with anhydrous hydrogen chloride, evaporated and mixed with chlorine gas into the reactor at a reaction temperature of 250-300 °C. The reaction product is subjected to rectification by four distillation columns to obtain chloropentane. In the hydrolyzer, sodium oleate is used as a catalyst, and chloropentane is hydrolyzed by aqueous sodium hydroxide solution. The crude pentanol is separated from water and distilled to obtain pentanol containing 59% of primary alcohol, 36% of secondary alcohol and 5% of tertiary alcohol. . Using a method using acetone and acetylene as a raw material, 2-Methyl-2-butanol having a purity of 99% can be obtained.