JPS5414934A - Device for preparing phthalic anhydride from adhesive moisture-containing phthalic acid - Google Patents

Device for preparing phthalic anhydride from adhesive moisture-containing phthalic acid

Info

Publication number
JPS5414934A
JPS5414934A JP7979377A JP7979377A JPS5414934A JP S5414934 A JPS5414934 A JP S5414934A JP 7979377 A JP7979377 A JP 7979377A JP 7979377 A JP7979377 A JP 7979377A JP S5414934 A JPS5414934 A JP S5414934A
Authority
JP
Japan
Prior art keywords
phthalic anhydride
adhesive moisture
phthalic acid
phthalic
preparing
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
JP7979377A
Other languages
Japanese (ja)
Other versions
JPS5753795B2 (en
Inventor
Akira Matsuura
Katsumi Matsuzaki
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.)
Kawasaki Kasei Chemicals Ltd
Original Assignee
Kawasaki Kasei Chemicals 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 Kawasaki Kasei Chemicals Ltd filed Critical Kawasaki Kasei Chemicals Ltd
Priority to JP7979377A priority Critical patent/JPS5414934A/en
Publication of JPS5414934A publication Critical patent/JPS5414934A/en
Publication of JPS5753795B2 publication Critical patent/JPS5753795B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To prepare phthalic anhydride with ease continuously, by pouring powdered or granular phthalic acid containing adhesive moisture into a high-temperature phthalic anhydride fluid to vaporize the adhesive moisture, which is discharged, and by intramolecular dehydration of phthalic acid in the phthalic anhydride under heating.
COPYRIGHT: (C)1979,JPO&Japio
JP7979377A 1977-07-06 1977-07-06 Device for preparing phthalic anhydride from adhesive moisture-containing phthalic acid Granted JPS5414934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7979377A JPS5414934A (en) 1977-07-06 1977-07-06 Device for preparing phthalic anhydride from adhesive moisture-containing phthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7979377A JPS5414934A (en) 1977-07-06 1977-07-06 Device for preparing phthalic anhydride from adhesive moisture-containing phthalic acid

Publications (2)

Publication Number Publication Date
JPS5414934A true JPS5414934A (en) 1979-02-03
JPS5753795B2 JPS5753795B2 (en) 1982-11-15

Family

ID=13700086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7979377A Granted JPS5414934A (en) 1977-07-06 1977-07-06 Device for preparing phthalic anhydride from adhesive moisture-containing phthalic acid

Country Status (1)

Country Link
JP (1) JPS5414934A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145790U (en) * 1984-03-08 1985-09-27 オンキヨー株式会社 dome type speaker
JPH0193898U (en) * 1987-12-14 1989-06-20

Also Published As

Publication number Publication date
JPS5753795B2 (en) 1982-11-15

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