Regeneration of a anthraquinone working solution by continuous m

Details Regeneration of a anthraquinone working solution by continuous m Regeneration of a anthraquinone working solution by continuous m

1974-11-06

1976-04-06

Yudkoff, Norman

Chemistry of inorganic compounds

Oxygen or compound thereof

Peroxide

203 42, 203 89, 203 73, 260396R, C01B 1502

Patent

active

039490637

ABSTRACT:
A process for regenerating working solutions used in cyclic processes for the manufacture of hydrogen peroxide using anthraquinones, the process consisting of a first distillation stage in which the solvent is separated under a pressure not greater than atmospheric pressure, and a second distillation stage in which the quinones and "light degraded products" are separated under a lower pressure. All the distillation products are used as a new working solution, the vapors of the second distillation stage being condensed on a liquid film of constantly renewed cold solvent originating from condensable vapors of the first distillation stage.

REFERENCES:
patent: 2751338 (1956-06-01), Schwemberger
patent: 2751339 (1956-06-01), Inman

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