【発明の名称】2-エチルアントラキノンの合成方法

Title:

【発明の名称】2-エチルアントラキノンの合成方法

Document Type and Number:

Japanese Patent JPH11501650

Kind Code:

A

Abstract:

A method comprising breaking down a complex of 2-(4'-ethylbenzoyl)benzoic acid, nHF and mBF3 to almost completely eliminate HF and BF3. The remaining solid is cyclised in concentrated sulphuric acid or oleum into non-pure 2-ethyl-anthraquinone (EAQ) which is then purified using a basic aqueous solution and by sublimation to give an EAQ that is pure enough to be used in a known manner for hydrogen peroxide synthesis.

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Inventors:

Dobitsk, Michel

Application Number:

JP52733496A

Publication Date:

February 09, 1999

Filing Date:

March 12, 1996

Export Citation:

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Assignee:

Elf Atochem S.A.

International Classes:

C07C46/00; C07C50/16; (IPC1-7): C07C50/16; C07C46/00

Attorney, Agent or Firm:

Yoshio Kawaguchi (2 outside)

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