Method for producing p-tert-butylphenol
2020-03-16
Method for producing p-tert-butylphenol
Method for producing p-tert-butylphenol
(1) 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 to obtain the product;
(2) Phenol diisobutylene method, using silicon aluminum catalyst, in the reaction pressure of 2.0MPa, temperature of 200 degrees C, liquid phase reaction, in addition to the right-butyl phenol, but also to octyl phenol, ortho-butyl phenol, the reaction product is separated to obtain the right-butyl phenol;
(3) Carbon four fraction method: to crack carbon four fractions and phenol as raw materials, titanium-molybdenum oxide as a catalyst, the reaction to obtain a mixture of phenol alkylation reaction based on tert-butyl phenol, after separation to obtain the product;
(4) Phosphoric acid catalyst method: using phenol and tert-butyl alcohol as raw materials, the product can be obtained by washing and crystallization separation.
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