FR2001960A1 - Procede de purification d'acide terephtalique - Google Patents
Procede de purification d'acide terephtaliqueInfo
- Publication number
- FR2001960A1 FR2001960A1 FR6903603A FR6903603A FR2001960A1 FR 2001960 A1 FR2001960 A1 FR 2001960A1 FR 6903603 A FR6903603 A FR 6903603A FR 6903603 A FR6903603 A FR 6903603A FR 2001960 A1 FR2001960 A1 FR 2001960A1
- Authority
- FR
- France
- Prior art keywords
- acid
- catalyst
- inert liquid
- terephthalic acid
- purificn
- 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.)
- Withdrawn
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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6903603A FR2001960A1 (fr) | 1969-02-14 | 1969-02-14 | Procede de purification d'acide terephtalique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6903603A FR2001960A1 (fr) | 1969-02-14 | 1969-02-14 | Procede de purification d'acide terephtalique |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2001960A1 true FR2001960A1 (fr) | 1969-10-03 |
Family
ID=9029083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6903603A Withdrawn FR2001960A1 (fr) | 1969-02-14 | 1969-02-14 | Procede de purification d'acide terephtalique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2001960A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2322125A1 (fr) * | 1975-08-26 | 1977-03-25 | Mitsubishi Chem Ind | Procede de preparation d'acide terephtalique purifie |
FR2431479A1 (fr) * | 1978-07-21 | 1980-02-15 | Mitsubishi Gas Chemical Co | Procede pour la production d'acide terephtalique de haute purete |
-
1969
- 1969-02-14 FR FR6903603A patent/FR2001960A1/fr not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2322125A1 (fr) * | 1975-08-26 | 1977-03-25 | Mitsubishi Chem Ind | Procede de preparation d'acide terephtalique purifie |
FR2431479A1 (fr) * | 1978-07-21 | 1980-02-15 | Mitsubishi Gas Chemical Co | Procede pour la production d'acide terephtalique de haute purete |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR960017615A (ko) | 테레프탈산 수성 슬러리의 조제방법 | |
GB1324674A (en) | Separation of mixed diastereoisomers of zearalanol | |
FR2001960A1 (fr) | Procede de purification d'acide terephtalique | |
GB1427783A (en) | Recovery of terephthalic acid dimethylester | |
GB1131133A (en) | Improvements in or relating to the production of unsaturated carboxylic acids | |
GB1353786A (en) | Purification of terephtalic acid | |
GB994769A (en) | Purification of terephthalic acid | |
GB1071350A (en) | Process for the preparation of high purity terephthalic acid | |
GB1238224A (fr) | ||
US3574727A (en) | Purification of terephthalic acid | |
ES425941A1 (es) | Procedimiento para purificar el ester dimetilico del acido tereftalico. | |
US2971011A (en) | Process of preparing trimellitic anhydride | |
JPS51127195A (en) | Process for manvfactvring polyesters | |
JPS5291835A (en) | Prepation of terephtalic acid for direct polymerization | |
GB1386582A (en) | Process for the purification of aromatic acids by solvent extraction | |
AU3263784A (en) | Separating iodine from anhydrides, acids, esters | |
US3004062A (en) | Purification of phthalic acid esters | |
US2809926A (en) | Purification of phthalic anhydride | |
GB982629A (en) | A process for the purification of terephthalic acid | |
US3014064A (en) | Stabilization of alcohols and esters | |
US3654350A (en) | Purification of terephthalic acid | |
GB1056319A (en) | Terephthalic acid recovery | |
US3008981A (en) | Purification of esters | |
US3565945A (en) | Preparation of esters of 2,6- and 2,7-naphthalene dicarboxylic acid | |
DK132023B (da) | Fremgangsmåde til fremstilling af 2-hydroxyethylestere af 2-quinoxalincarboxylsyre-1,4-dioxider ved transesterificering af en tilsvarende 2-alkylester med ethylenglycol i nærvær af en basisk katalysator. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Withdrawal of published application |