Patents

An improved single step process for preparation of p-aminophenol

The present invention provides a single step process for the preparation of p-aminophenol by contacting a mixture of nitrobenzene and water with hydrogen over a solid acid catalyst, terminating the reaction to obtain a reaction mixture containing the product, extracting the reaction mixture with an organic solvent, separating the aqueous layer containing the product, and then concentrating the aqueous layer by any conventional method to obtain the product.

Filing Date: 12-02-1999

Issue Date: 09-08-2006

Patent No: IN197210 [India]

Application No: 0243/DEL/1999

Inventor(s): Raghunath Vitthal Chaudhari; Sunil Sadashiv Divekar; Manisha Jagdeeshrao Vaidya; Chandrashekar Vasant Rode

Licensing Option: Laboratory willing to jointly develop technology with industrial partner.

Implementing institute: CSIR-National Chemical Laboratory [CSIR-NCL]

Funding agency: Council of Scientific and Industrial Research (CSIR)

IPC Classification: C07C 213/00

Related Patents