BE762805A - PROCESS FOR PURIFYING TEREPHTHALIC ACID AND ISO-PHTHALIC ACID - Google Patents
PROCESS FOR PURIFYING TEREPHTHALIC ACID AND ISO-PHTHALIC ACIDInfo
- Publication number
- BE762805A BE762805A BE762805A BE762805A BE762805A BE 762805 A BE762805 A BE 762805A BE 762805 A BE762805 A BE 762805A BE 762805 A BE762805 A BE 762805A BE 762805 A BE762805 A BE 762805A
- Authority
- BE
- Belgium
- Prior art keywords
- iso
- acid
- purifying terephthalic
- terephthalic acid
- phthalic acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702008129 DE2008129A1 (en) | 1970-02-21 | 1970-02-21 | Process for the purification of tere- or isophthalic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
BE762805A true BE762805A (en) | 1971-08-11 |
Family
ID=5762986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE762805A BE762805A (en) | 1970-02-21 | 1971-02-11 | PROCESS FOR PURIFYING TEREPHTHALIC ACID AND ISO-PHTHALIC ACID |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE762805A (en) |
DE (1) | DE2008129A1 (en) |
FR (1) | FR2078824A5 (en) |
NL (1) | NL7102172A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7164038B1 (en) * | 2006-02-14 | 2007-01-16 | Eastman Chemical Company | Process for decolorizing aromatic dicarboxylic acids |
-
1970
- 1970-02-21 DE DE19702008129 patent/DE2008129A1/en active Pending
-
1971
- 1971-02-11 BE BE762805A patent/BE762805A/en unknown
- 1971-02-18 NL NL7102172A patent/NL7102172A/xx unknown
- 1971-02-19 FR FR7105697A patent/FR2078824A5/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2078824A5 (en) | 1971-11-05 |
DE2008129A1 (en) | 1971-09-02 |
NL7102172A (en) | 1971-08-24 |
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