Process for producing alpha-picoline
AssigneeMobil Oil Corporation
InventorsClarence D. Chang, Patrick D. Perkins
Life of this patent
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Abstract
Alpha-picolines are produced by containing aniline or substituted anilines, such as alkyl-, cyclo alkyl-, halo- ; alkoxy- or substituted alkyl-anilines with a crystalline zeolite catalyst having a silica:alumina ratio of at least 12 and a constraint index of 1 to 12. ZSM-5 type catalysts are contacted at elevated temperature to yield alpha-picolines selectively.
Claims13
A method of making alpha-picoline or a substituted alpha picoline by contacting aniline or a substituted aniline with a crystalline zeolite catalyst.
A method of making alpha-picolines by contacting aniline or a substituted aniline with a crystalline zeolite catalyst, said substituted aniline being substituted in the aromatic nucleus or amino group with one or more alkyl, cycloalkyl, alkoxy, halogen, nitro or substituted-alkyl group.
A catalytic process for converting aniline to alpha-picoline in the presence of ammonia which comprises the steps of
- contacting a vapor phase reaction mixture of ammonia and aniline having a molar ratio of about 0.5:1 to 25:1 ammonia to aniline with a ZSM-5 type crystalline aluminosilicate catalyst at a temperature of about 200.degree. C. to 650.degree. C. and a space velocity of about 0.1 to 50 WHSV.
Dependencies are inferred from the claim text.