United States Patent Office Patented Apr
3,178,485 United States Patent Office Patented Apr. 13, 1965 2 3,178,485 alcohol, capryl alcohol, n-decyl alcohol, and the like; poly THERMAL, HYDROIDEALKYLATION OF ALKYL hydric aliphatic alcohols, such as ethylene glycol, propyl AROMATICS ene glycol, glycerol, trimethylene glycol, and the like; John W. Myers, Bartlesville, Okla., assig or to Philips monocarboxylic aliphatic acids, such as formic acid, acetic Petroleism Company, a corporation of Delaware acid, propionic acid, n-butyric acid, isobutyric acid, n No Drawing. Filed Dec. 6, 1961, Ser. No. 57,566 Valeric acid, caproic acid, n-heptylic acid, caprylic acid, 2 Claims. (CI. 260-672) pelargonic acid, and the like; esters of such carboxylic This invention relates to the thermal hydrodealkylation acids, such as methyl formate, ethyl formate, methyl of alkyl aromatics. More particularly, it relates to a acetate, ethyl acetate, n-propyl acetate, n-butyl acetate, process for the thermal hydrodealkylation of alkyl aro O n-amyl acetate, n-octyl acetate, ethyl propionate, isoamyl matics, such as toluene, in admixture with an oxygen-sub n-butyrate, ethyl n-heptylate, and the like; anhydrides of stituted organic compound. such carboxylic acid, such as acetic anhydride, propionic There is increasdi interest and activity today in the anhydride, n-butyric anhydride, n-valeric anhydride, and chemical and allied industries in the production of aro the like; aldehydes, such as acetaldehyde, chloral glyoxal, matics such as benzene and naphthalene. Attention has propionaldehyde, n-butyraldehyde, isobutyraldehyde, n been given in particular to the catalytic hydrodealkyla valeraldehyde, acrolein, crotonaldehyde, benzaldehyde, tion of alkyl aromatics for the production of these valu furfural, and the like; ketones, such as acetone, methyl able aromatics.
[Show full text]