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EP0286610A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for preparation of hydrogen peroxide

Assignee: Nouryon Pulp and Performance Chemicals AB
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Filing: 1988-03-09
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Granted: —
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Expires: 2008-03-09
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Abstract

Abstract A process for the production of hydrogen peroxide according to the anthraquinone process. According to the process certain alkyl substituted caprolactames are used as solvents, and particularly as solvents for anthrahydro­quinones. The substituted caprolactames, which for example can be hexyl caprolactam and octyl caprolactam, give a very good solubility for anthrahydroquinones and also for anthraquinones. The compounds can be used as the sole solvent at the production of hydrogen peroxide or in combination with conventionally used solvents such as hydrocarbons.

Inventors

  • 👤 Erik Alvar Bengtsson
  • 👤 Ulf Mikael Andersson

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 20:23
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 43 words
A process for the production of hydrogen peroxide by reduction and oxidation of an anthraquinone, charac­terized in that as solvent is used an alkyl substituted caprolaktam having the general formula wherein R₁ is an alkyl group having from 6 to 12 carbon atoms.
Claim 2
Dependent Claim 43 words
A process for the production of hydrogen peroxide by reduction and oxidation of an anthraquinone, charac­terized in that as solvent is used an alkyl substituted caprolaktam having the general formula wherein R₁ is an alkyl group having from 6 to 12 carbon atoms.
Claim 3
Dependent Claim 14 words
A process according to claim 1, characterized in that R₁ is an octyl group.
Claim 4
Dependent Claim 24 words
A process according to any of the preceding claims, characterized in that the alkyl substituted capro­lactam is used in combination with a hydrocarbon solvent.
Claim 5
Dependent Claim 26 words
A process according to any of the preceding claims, characterized in that the alkyl substituted capro­lactam is used in combination with per se known polar solvents.

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