GB2013664A - A Method of Preparing an Anthraquinone - Google Patents

A Method of Preparing an Anthraquinone

Info

Publication number
GB2013664A
GB2013664A GB7901971A GB7901971A GB2013664A GB 2013664 A GB2013664 A GB 2013664A GB 7901971 A GB7901971 A GB 7901971A GB 7901971 A GB7901971 A GB 7901971A GB 2013664 A GB2013664 A GB 2013664A
Authority
GB
United Kingdom
Prior art keywords
oxidation
approximately
anthraquinone
nitric acid
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7901971A
Other versions
GB2013664B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB2013664A publication Critical patent/GB2013664A/en
Application granted granted Critical
Publication of GB2013664B publication Critical patent/GB2013664B/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00Preparation of quinones
    • C07C46/02Preparation of quinones by oxidation giving rise to quinoid structures
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/28Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of CHx-moieties
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/27Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
    • C07C51/275Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids of hydrocarbyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

An anthraquinone is prepared by oxidation of o-benzyltoluene with <IMAGE> nitric acid in two oxidation stages, the first oxidation stage being performed with a nitric acid of 25 to 50 weight-% strength under atmospheric pressure at temperatures of approximately 80 to 110 DEG C in the presence of known oxidation catalysts, after which the liquid oxidation product is further oxidised in the second oxidation stage with a nitric acid of 8 to 15 weight-% strength under a pressure of approximately 10 to 30 bar at temperatures of approximately 150 to 180 DEG C until cessation of nitrogen oxide evolution, the method also including the steps of esterifying the raw o-benzoylbenzoic acid with methanol, distilling the methyl ester, and converting the o-benzoylbenzoic methyl ester into anthraquinone by heating with concentrated sulphuric acid at a temperature of approximately 150 DEG C.
GB7901971A 1978-02-02 1979-01-19 Method of preparing an anthraquinone Expired GB2013664B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2804414A DE2804414C2 (en) 1978-02-02 1978-02-02 Process for the production of anthraquinone

Publications (2)

Publication Number Publication Date
GB2013664A true GB2013664A (en) 1979-08-15
GB2013664B GB2013664B (en) 1982-10-27

Family

ID=6030972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7901971A Expired GB2013664B (en) 1978-02-02 1979-01-19 Method of preparing an anthraquinone

Country Status (6)

Country Link
JP (1) JPS54117452A (en)
CH (1) CH637619A5 (en)
DE (1) DE2804414C2 (en)
FR (1) FR2416212A1 (en)
GB (1) GB2013664B (en)
IT (1) IT1114502B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111120A2 (en) * 1982-11-10 1984-06-20 BASF Aktiengesellschaft Process for the preparation of anthraquinones
CN102241579A (en) * 2011-07-07 2011-11-16 辽宁石油化工大学 Method for synthesizing anthraquinone

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243956A1 (en) * 1982-11-27 1984-05-30 Luma Elektronik - GmbH, 4904 Enger Position sensor for determining the position of linearly displaceable machine parts
JPH0185977U (en) * 1987-11-26 1989-06-07

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050799A1 (en) * 1970-10-16 1972-04-20 Ortho-benzoyl benzoic acid prodn - from diphenyl-methane derivs
DE2256663A1 (en) * 1972-11-18 1974-05-22 Basf Ag PROCESS FOR PRODUCING CHLORANTHRAQUINONE-2,3-DICARBONIC ANHYDRIDES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111120A2 (en) * 1982-11-10 1984-06-20 BASF Aktiengesellschaft Process for the preparation of anthraquinones
EP0111120A3 (en) * 1982-11-10 1985-12-04 Basf Aktiengesellschaft Process for the preparation of anthraquinones
CN102241579A (en) * 2011-07-07 2011-11-16 辽宁石油化工大学 Method for synthesizing anthraquinone
CN102241579B (en) * 2011-07-07 2014-04-16 辽宁石油化工大学 Method for synthesizing anthraquinone

Also Published As

Publication number Publication date
DE2804414A1 (en) 1979-08-09
IT7947534A0 (en) 1979-01-04
DE2804414C2 (en) 1986-07-24
CH637619A5 (en) 1983-08-15
JPS54117452A (en) 1979-09-12
FR2416212A1 (en) 1979-08-31
JPS6148493B2 (en) 1986-10-24
FR2416212B1 (en) 1982-07-09
GB2013664B (en) 1982-10-27
IT1114502B (en) 1986-01-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee