C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 15/023 (2006.01)
Patent
CA 2111027
A process for producing hydrogen peroxide by subjecting a working solution containing anthraquinones as the reaction medium, to reduction and oxidation alter- nately, which process is characterized in that (1) the anthraquinones as tree reaction medium contained in the working solution area a mixture of an alkyl-substituted anthraquinone and an alkyl-substituted tetrahydroanthra- quinone, (2) in the reduction step, the total amount of the alkyl-substituted tetrahydroanthraquinone in the working solution and part or the total amount of the alkyl-substituted anthraquinone in the working solution are reduced, and (3) in the working solution after the reduction step, the content of the alkyl-substituted anthrahydroquinone formed is kept higher than the content of the alkyl-substituted tetrahydroanthrahydroquinone formed.
Ishiuchi Yukio
Kato Tomio
Minato Kazuyuki
Ogasawara Kazuharu
Takamiya Hiroshi
Mitsubishi Gas Chemical Company Inc.
Smart & Biggar
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