JPS5470252A - Preparation of novel anthraquinone - Google Patents

Preparation of novel anthraquinone

Info

Publication number
JPS5470252A
JPS5470252A JP13362777A JP13362777A JPS5470252A JP S5470252 A JPS5470252 A JP S5470252A JP 13362777 A JP13362777 A JP 13362777A JP 13362777 A JP13362777 A JP 13362777A JP S5470252 A JPS5470252 A JP S5470252A
Authority
JP
Japan
Prior art keywords
phthalic anhydride
catalyst
anthraquinone
temperature
benzene
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
JP13362777A
Other languages
Japanese (ja)
Other versions
JPS5857416B2 (en
Inventor
Motoo Kawamata
Shiro Fujikake
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP52133627A priority Critical patent/JPS5857416B2/en
Publication of JPS5470252A publication Critical patent/JPS5470252A/en
Publication of JPS5857416B2 publication Critical patent/JPS5857416B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain anthraquinone in one step in a high yield, by bringing a gas containing phthalic anhydride and benzene into contact with a catalyst consisting of titanium oxide and/or tin oxide, using CO2 as a reaction diluent.
CONSTITUTION: Phthalic anhydride (P) is reacted with benzene (B) in a molar ratio of (P) to (B) of about 1:3W30 in the presence of a catalyst consisting of titanium oxide and/or tin oxide at 300W600°C, preferafbly 350W550°C to give anthraquinone. The optimum reaction temperature depends on the feed rate, e.g. gas space velocity (SV), of the raw material to the amount of the catalyst used, and the temperature is set at a higher one with increasing SV. The temperature is lower with decreasing SV. The use of CO2 as a diluent inhibits decarboxylation of phthalic anhydride to increase the yield of the title compound. The catalyst may be supported on a proper carrier.
COPYRIGHT: (C)1979,JPO&Japio
JP52133627A 1977-11-09 1977-11-09 Novel method for producing anthraquinone Expired JPS5857416B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52133627A JPS5857416B2 (en) 1977-11-09 1977-11-09 Novel method for producing anthraquinone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52133627A JPS5857416B2 (en) 1977-11-09 1977-11-09 Novel method for producing anthraquinone

Publications (2)

Publication Number Publication Date
JPS5470252A true JPS5470252A (en) 1979-06-05
JPS5857416B2 JPS5857416B2 (en) 1983-12-20

Family

ID=15109230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52133627A Expired JPS5857416B2 (en) 1977-11-09 1977-11-09 Novel method for producing anthraquinone

Country Status (1)

Country Link
JP (1) JPS5857416B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047959C (en) * 1994-10-25 2000-01-05 中国石油化工总公司 Supported catalyst for preparing phthalic anhydride

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995952A (en) * 1973-01-25 1974-09-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995952A (en) * 1973-01-25 1974-09-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047959C (en) * 1994-10-25 2000-01-05 中国石油化工总公司 Supported catalyst for preparing phthalic anhydride

Also Published As

Publication number Publication date
JPS5857416B2 (en) 1983-12-20

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