Improved process for the production of hydrogen peroxide
Номер патента: GB881900A
Опубликовано: 08-11-1961
Автор(ы):
Принадлежит: Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA, Montedison Spa
Опубликовано: 08-11-1961
Автор(ы):
Принадлежит: Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA, Montedison Spa
Реферат: Hydrogen peroxide is produced by the alternate reduction and oxidation of an alkyl anthraquinone in a solvent medium comprising an alkyl ester of benzoic acid, e.g. ethyl or isobutyl benzoate. The process comprises catalytic reduction with hydrogen of the alkyl anthraquinone in the solvent medium, oxidation with air or oxygen of the reduced solution after removal of the catalyst, thereby regenerating the alkyl anthraquinone and simultaneously producing hydrogen peroxide, and recycling of the oxidized solution to the reduction stage after extraction of the hydrogen peroxide with water. The solvent medium may also comprise alphanethyl-naphthalene, or a diallyl ether of ethylene or diethylene glycol, e.g. dibutyl diethylene glycol. The alkyl anthraquinone may be 2-ethylanthraquinone. The catalyst may be Raney nickel. Examples are given.
Process for the regeneration of noble metal catalysts for hydrogen peroxide synthesis according to the anthraquinone process
Номер патента: DE2042523C3. Автор: Otto Dr. 6078 Neu-Isenburg Weiberg,Gerd Dr. Schreyer,Ferdinand Dr. Theissen,Wolfgang Dr. 6050 Offenbach Weigert. Владелец: Deutsche Gold und Silber Scheideanstalt. Дата публикации: 1979-09-13.