Intellectual Property India Publishes Patent Application for A Process For Isolation Of Phenazine From Process Waste Stream Of 4-Adpa (4-Amino-Diphenylamine) Manufacturing Process

MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202421102527 A) filed by Nocil Ltd. on December 24, 2024, for A Process For Isolation Of Phenazine From Process Waste Stream Of 4-Adpa (4-Amino-Diphenylamine) Manufacturing Process.

Inventors include Nandi, Chinmoy; Rao, Prahlad Laxman; Radadiya, Sanjay Laxmanbhai; Gangal, Narendra Digambar; and Padalkar, Vikas Sudam.

The application for the patent was published on June 26, 2026, under issue no. 26/2026.

Abstract: A process for isolating phenazine with high purity (99.5 %) from the process waste of 4-ADPA through a Novel Process employing continuous distillation & crystallization technology in solvent medium comprising of aromatic nitro solvent.

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