01676nas a2200181   4500008004100000022001400041245010900055210006900164260000800233300001600241490000700257520101300264100002201277700002201299700002701321700002301348856012301371       2022                        eng d  a0888-588500aHydrodechlorination of 4-chloro-2-aminophenol into a recyclable product using Ni- and Cu-based catalysts0 aHydrodechlorination of 4chloro2aminophenol into a recyclable pro  cOCT  a14433-144450 v613 a<p>
	The 4-chloro-2-amino phenol (4C2AP) bearing wastewater is produced while manufacturing dyes and pharma-ceutical ingredients. Ni-and Cu-based cost-effective catalysts were developed, typically characterized, and subjected to hydrodechlori-nation (HDC) of 4C2AP. The role of reducing agents, concentration, pH of wastewater, presence of salt, reaction temperature, catalyst reuse, and the kinetics was investigated. A selective makeover of 2-amino phenol (2AP) was analyzed by HPLC, LCMS, and NMR. A complete HDC of 4C2AP with remarkable selectivity (98%) toward 2AP was achieved using a Ni0 catalyst and NaBH4 at room temperature. It is observed that the alkaline condition, the presence of salt, and a high reaction temperature favor the HDC process. A maximum of 1 g L-1 of the Ni0 loading is found to be sufficient to dechlorinate the pollutant. It can be concluded that the catalytic HDC is a technically viable and inexpensive process for the conversion of 4C2AP into a valuable product, 2AP.</p>
1 aShetty, Rohit, R.1 aRaut, Sandesh, S.1 aKulkarni, Prashant, S.1 aKamble, Sanjay, P.  uhttps://library.ncl.res.in/content/hydrodechlorination-4-chloro-2-aminophenol-recyclable-product-using-ni-and-cu-based