Surfactant improvement for para-aminophenol process
AssigneeMallinckrodt Specialty Chemicals Company
InventorDouglas C. Miller
Life of this patent
Estimating the term…
Abstract
The compound p-aminophenol is prepared by catalytically hydrogenating nitrobenzene in an acidic reaction medium containing an amine of the formula (I) ##STR1## wherein R represents an alkyl group having from 6 to about 20 carbon atoms; R.sub.1 and R.sub.2 are the same or different, and are represented by the formula --[(CH.sub.2).sub.m O].sub.n H, wherein m is an integer of from 1 to about 5 and n is an integer of from 1 to about 10.
Claims20
A process for preparing p-aminophenol comprising catalytically hydrogenating nitrobenzene in an acidic reaction medium containing an amine of the formula (I) ##STR3## wherein R represents alkyl having from about 6 to about 20 carbon atoms;
- R and R.sub.2 are the same or different, and are represented by the formula --[(CH.sub.2).sub.m O].sub.n H, wherein m is an integer of from 1 to about 5 and n is an integer of from 1 to about 10.
Dependencies are inferred from the claim text.