Patent ID: 9617153
Date: 2017-04-11
CPC Classifications: C01B

Claim:
1. A process for manufacturing hydrogen peroxide, comprising: (a) catalytically hydrogenating at least one alkylanthraquinone, present in a working solution comprising the at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone; (b) oxidizing the at least one alkylanthrahydroquinone to obtain hydrogen peroxide; (c) extracting the hydrogen peroxide formed in step (b) from the working solution and recycling the working solution from step (c) of the process to step (a) of the process; wherein steps (a), (b), (c) are performed in a first reactor system that is located at a first site to produce from 2 to 20 kilo tons of hydrogen peroxide per year, (d) withdrawing the working solution from the first reactor system following an interval of at least 3 months during which steps (a), (b), and (c) of the process are performed in the first reactor system without withdrawing the working solution from the first reactor system and without regenerating the working solution, and (e) regenerating the working solution in a second reactor system that is located at a second site, wherein the second reactor system is different from the first reactor system and second site is different from the first site.