Process for the preparation of hydrogen peroxide

Details Process for the preparation of hydrogen peroxide Process for the preparation of hydrogen peroxide

1996-02-09

1998-03-10

Langel, Wayne

Chemistry of inorganic compounds

Oxygen or compound thereof

Peroxide

C01B 15023

Patent

active

057258376

ABSTRACT:
The invention relates to a process for the preparation of hydrogen peroxide by the anthraquinone process, comprising the oxidation of a hydrogenated organic working solution for the formation of hydrogen peroxide and the extraction of the hydrogen peroxide into an aqueous phase, the oxidation and the extraction being carried out in the same space by directing into one and the same reactor (1) a hydrogenated organic working solution, an oxygen-containing gas and an aqueous extraction solvent in order to form a mixture of three phases, i.e., an organic phase, a gas phase and an aqueous phase, whereby the dissolving of the oxygen in the working solution and the oxidation reaction in the working solution, as well as the transfer of the hydrogen peroxide to the aqueous phase are achieved, whereafter the product leaving the reactor is subjected to phase separation (2) for the recovery of an aqueous solution of hydrogen peroxide. The invention also relates to the use of this process in parallel with a conventional process for the preparation of hydrogen peroxide.

REFERENCES:
patent: 2993760 (1961-09-01), Broun, Jr. et al.
patent: 3321279 (1967-05-01), Williams
patent: 3880596 (1975-04-01), Liebert et al.
patent: 5196179 (1993-03-01), Turunen et al.
Perry et al. (eds.), Perry's Chemical Enginees' Handbook, McGraw-Hill Book Co., 1984, pp.19-23.
Ullmann's Encyclopedia of Industrial Chemistry, 5th ed., vol. A13, 1995, pp. 447-456.

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