JPS5384932A - Preparation of terephthalic acid - Google Patents
Preparation of terephthalic acidInfo
- Publication number
- JPS5384932A JPS5384932A JP15898676A JP15898676A JPS5384932A JP S5384932 A JPS5384932 A JP S5384932A JP 15898676 A JP15898676 A JP 15898676A JP 15898676 A JP15898676 A JP 15898676A JP S5384932 A JPS5384932 A JP S5384932A
- Authority
- JP
- Japan
- Prior art keywords
- preparation
- terephthalic acid
- methyl acetate
- oxidation
- recivering
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To reduce the formation of methyl acetate as a by-product and to decrease the orginal unit of acetic acid by recivering methyl acetate from the reaction mixture by distillation and returning it to the oxidation reactor in SD method of preparing terephthalic from p-xylene by oxidation.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15898676A JPS5384932A (en) | 1976-12-30 | 1976-12-30 | Preparation of terephthalic acid |
CA292,697A CA1088561A (en) | 1976-12-30 | 1977-12-08 | Process for producing terephthalic acid |
GB53071/77A GB1554488A (en) | 1976-12-30 | 1977-12-20 | Process for producing terephthalic acid |
PT67440A PT67440B (en) | 1976-12-30 | 1977-12-21 | Process for producing terephtalic acid |
NLAANVRAGE7714358,A NL187014C (en) | 1976-12-30 | 1977-12-23 | METHOD FOR PREPARING TERFHTALIC ACID. |
PH20595A PH14541A (en) | 1976-12-30 | 1977-12-27 | Process for producing terephthalic acid |
FR7739489A FR2376115A1 (en) | 1976-12-30 | 1977-12-28 | PROCESS FOR PREPARING TEREPHTHALIC ACID WITH RECOVERY OF METHYL ACETATE CONTAINED IN MOTHER LIQUEURS |
DE2759026A DE2759026C2 (en) | 1976-12-30 | 1977-12-30 | Process for the production of terephthalic acid |
IT31461/77A IT1089250B (en) | 1976-12-30 | 1977-12-30 | PROCESS FOR THE PRODUCTION OF TEREPHTHALIC ACID |
US06/693,232 US4562285A (en) | 1976-12-30 | 1985-01-22 | Process for producing terephthalic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15898676A JPS5384932A (en) | 1976-12-30 | 1976-12-30 | Preparation of terephthalic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5384932A true JPS5384932A (en) | 1978-07-26 |
JPS5645898B2 JPS5645898B2 (en) | 1981-10-29 |
Family
ID=15683708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15898676A Granted JPS5384932A (en) | 1976-12-30 | 1976-12-30 | Preparation of terephthalic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5384932A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004074231A1 (en) * | 2003-02-21 | 2004-09-02 | Mitsubishi Chemical Corporation | Process for producing aromatic carboxylic acid |
US7470348B2 (en) | 2002-08-30 | 2008-12-30 | Mitsubishi Heavy Industries, Ltd. | Separator for producing aromatic carboxylic acids |
-
1976
- 1976-12-30 JP JP15898676A patent/JPS5384932A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7470348B2 (en) | 2002-08-30 | 2008-12-30 | Mitsubishi Heavy Industries, Ltd. | Separator for producing aromatic carboxylic acids |
WO2004074231A1 (en) * | 2003-02-21 | 2004-09-02 | Mitsubishi Chemical Corporation | Process for producing aromatic carboxylic acid |
Also Published As
Publication number | Publication date |
---|---|
JPS5645898B2 (en) | 1981-10-29 |
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