JPS5289637A - Preparation of terephthalic acid for direct polymerization - Google Patents
Preparation of terephthalic acid for direct polymerizationInfo
- Publication number
- JPS5289637A JPS5289637A JP478076A JP478076A JPS5289637A JP S5289637 A JPS5289637 A JP S5289637A JP 478076 A JP478076 A JP 478076A JP 478076 A JP478076 A JP 478076A JP S5289637 A JPS5289637 A JP S5289637A
- Authority
- JP
- Japan
- Prior art keywords
- preparation
- terephthalic acid
- direct polymerization
- concentration
- polymerization
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: Preparation of high-purity terephthalic acid for direct polymerization by the oxidation of xylene in the liquid phase while the concentration of 4 - carboxybenzaldehyde in the reaction mother liquor is kept at a specific concentration or less.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP478076A JPS5289637A (en) | 1976-01-19 | 1976-01-19 | Preparation of terephthalic acid for direct polymerization |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP478076A JPS5289637A (en) | 1976-01-19 | 1976-01-19 | Preparation of terephthalic acid for direct polymerization |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5289637A true JPS5289637A (en) | 1977-07-27 |
Family
ID=11593325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP478076A Pending JPS5289637A (en) | 1976-01-19 | 1976-01-19 | Preparation of terephthalic acid for direct polymerization |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5289637A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5555138A (en) * | 1978-10-19 | 1980-04-22 | Mitsubishi Chem Ind Ltd | Preparation of highly pure terephthalic acid |
-
1976
- 1976-01-19 JP JP478076A patent/JPS5289637A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5555138A (en) * | 1978-10-19 | 1980-04-22 | Mitsubishi Chem Ind Ltd | Preparation of highly pure terephthalic acid |
JPS6247864B2 (en) * | 1978-10-19 | 1987-10-09 | Mitsubishi Chem Ind |
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