A Novel Method for Producing Phenazine by Using Waste from the Synthesis Process of 4-Amino-Diphenylamine

Rong Hua Yang

doi:10.4028/www.scientific.net/AMR.634-638.164

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 634-638A Novel Method for Producing Phenazine by Using...

A Novel Method for Producing Phenazine by Using Waste from the Synthesis Process of 4-Amino-Diphenylamine

Abstract:

Phenazine with high purity above 99.5% was recovered from waste of industrial production of 4-amino-diphenylamine by using solid-liquid separation, solvent extraction, recrystallization, sublimation and rectification. The operating condition for the recovery of phenazine was assessed and optimal operation conditions were recommended. The yield of phenazine in the waste reaches 85% or so, the rest of the waste returns to the system for further use. This novel method increased waste utilization value and reduced production cost compared with the conventional process. This research saves the cost in phenazine synthesis and reduces waste emission.

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Periodical:

Advanced Materials Research (Volumes 634-638)

Pages:

164-168

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.634-638.164

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Online since:

January 2013

Authors:

Rong Hua Yang

Keywords:

4-Amino-Diphenylamine, Phenazine, Production Waste, Recrystallization, Solvent Extraction

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