JPS6113711B2 - - Google Patents

Info

Publication number
JPS6113711B2
JPS6113711B2 JP17780881A JP17780881A JPS6113711B2 JP S6113711 B2 JPS6113711 B2 JP S6113711B2 JP 17780881 A JP17780881 A JP 17780881A JP 17780881 A JP17780881 A JP 17780881A JP S6113711 B2 JPS6113711 B2 JP S6113711B2
Authority
JP
Japan
Prior art keywords
phthalic anhydride
weight
alkali metal
crude
manganese
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.)
Expired
Application number
JP17780881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5879990A (ja
Inventor
Juichi Kita
Kentaro Sakamoto
Takahisa Sato
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.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai Co Ltd
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 Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP17780881A priority Critical patent/JPS5879990A/ja
Priority to GB08218761A priority patent/GB2105710B/en
Priority to US06/394,477 priority patent/US4436922A/en
Priority to DE19823225079 priority patent/DE3225079A1/de
Priority to FR8211850A priority patent/FR2508906A1/fr
Publication of JPS5879990A publication Critical patent/JPS5879990A/ja
Publication of JPS6113711B2 publication Critical patent/JPS6113711B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Furan Compounds (AREA)
JP17780881A 1981-07-06 1981-11-07 高純度無水フタル酸の製造方法 Granted JPS5879990A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP17780881A JPS5879990A (ja) 1981-11-07 1981-11-07 高純度無水フタル酸の製造方法
GB08218761A GB2105710B (en) 1981-07-15 1982-06-29 Method for manufacture of high-purity phthalic anhydride
US06/394,477 US4436922A (en) 1981-07-06 1982-07-01 Method for manufacture of high-purity phthalic anhydride
DE19823225079 DE3225079A1 (de) 1981-07-06 1982-07-05 Verfahren zur herstellung von phthalsaeure-anhydrid von hohem reinheitsgrad
FR8211850A FR2508906A1 (fr) 1981-07-06 1982-07-06 Procede de preparation d'un anhydride phtalique de haute purete a partir de l'anhydride phtalique brut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17780881A JPS5879990A (ja) 1981-11-07 1981-11-07 高純度無水フタル酸の製造方法

Publications (2)

Publication Number Publication Date
JPS5879990A JPS5879990A (ja) 1983-05-13
JPS6113711B2 true JPS6113711B2 (de) 1986-04-15

Family

ID=16037445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17780881A Granted JPS5879990A (ja) 1981-07-06 1981-11-07 高純度無水フタル酸の製造方法

Country Status (1)

Country Link
JP (1) JPS5879990A (de)

Also Published As

Publication number Publication date
JPS5879990A (ja) 1983-05-13

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