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US 4,283,573 AGranted
Long-chain alkylphenols
AssigneeMobil Oil Corporation
InventorLewis B. Young
Life of this patent
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Abstract
A method for producing long chain-length alkylphenols with preferential production of para-alkylphenols and placement of the phenolic moiety at the #2 position on the alkyl chain. The reaction is carried out in the presence of crystalline zeolites having a major pore dimension of about six to seven angstrom units.
Claims15
A process for the production of alkyl-substituted phenolic compounds comprising:
- contacting a phenol with an alkylating agent having a reactive alkyl group at a temperature of between about 50.degree. C. and about 500.degree. C. and a pressure within the approximate range of 10.sup.4 N/m.sup.2 to 10.sup.7 N/m.sup.2, said alkyl group having at least 5 carbon atoms, said contacting being in the presence of a crystalline zeolite catalyst which is characterized by the presence therein of networks of pores having openings thereto, the major dimension of said openings being between about six and about seven angstroms.
Dependencies are inferred from the claim text.