Method for manufacturing tert-butylphenol
2020-03-16
Phenol isobutylene method: phenol and isobutylene as raw materials, cation exchange resin as catalyst, normal pressure, 110 ℃ for alkylation reaction, the product can be distilled under reduced pressure.
(1) Phenol isobutylene method: phenol and isobutylene are used as raw materials, cation exchange resin is used as catalyst, alkylation reaction is carried out at normal pressure and 110 ℃, and the product can be distilled under reduced pressure to obtain the product;(2) Phenol diisobutylene method; Using silicon aluminum catalyst, under the reaction pressure of 2.0MPa, temperature of 200 ℃, liquid phase reaction to obtain p-tert-butyl phenol, p-octyl phenol and o-tert-butyl phenol are also obtained, the reaction product is separated to obtain p-tert-butylphenol;(3) C4 fraction method: using cracked C4 fraction and phenol as raw materials, using titanium-molybdenum oxide as catalyst, the reaction obtains the mixture of phenol alkylation reaction mainly with p-tert-butylphenol, and the product is obtained by separation;(4) phosphoric acid catalyst method: using phenol and tert-butanol as raw materials, the product can be obtained by water washing and crystallization separation.
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