JPS5640135B2 - - Google Patents
Info
- Publication number
- JPS5640135B2 JPS5640135B2 JP10323075A JP10323075A JPS5640135B2 JP S5640135 B2 JPS5640135 B2 JP S5640135B2 JP 10323075 A JP10323075 A JP 10323075A JP 10323075 A JP10323075 A JP 10323075A JP S5640135 B2 JPS5640135 B2 JP S5640135B2
- Authority
- JP
- Japan
- 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.)
- Expired
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)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50103230A JPS5227743A (en) | 1975-08-26 | 1975-08-26 | Production of high-purity terephthalic acid |
| NL7608867A NL7608867A (nl) | 1975-08-26 | 1976-08-10 | Werkwijze voor het zuiveren van tereftaalzuur. |
| US05/713,825 US4201872A (en) | 1975-08-26 | 1976-08-12 | Process for preparing purified terephthalic acid |
| MX762902U MX4318E (es) | 1975-08-26 | 1976-08-12 | Procedimiento mejorado para la obtencion de acido tereftalico purificado |
| DE19762636877 DE2636877A1 (de) | 1975-08-26 | 1976-08-17 | Verfahren zur herstellung von gereinigter terephthalsaeure |
| PT65510A PT65510B (en) | 1975-08-26 | 1976-08-24 | Process of preparation of purified terephthalic acid |
| BR7605592A BR7605592A (pt) | 1975-08-26 | 1976-08-25 | Processo para producao de acido tereftalico purificado |
| FR7625690A FR2322125A1 (fr) | 1975-08-26 | 1976-08-25 | Procede de preparation d'acide terephtalique purifie |
| IT26565/76A IT1064999B (it) | 1975-08-26 | 1976-08-26 | Procedimento per la preparazione di acido tereftalico purificato |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50103230A JPS5227743A (en) | 1975-08-26 | 1975-08-26 | Production of high-purity terephthalic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5227743A JPS5227743A (en) | 1977-03-02 |
| JPS5640135B2 true JPS5640135B2 (US20030220297A1-20031127-C00009.png) | 1981-09-18 |
Family
ID=14348656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50103230A Granted JPS5227743A (en) | 1975-08-26 | 1975-08-26 | Production of high-purity terephthalic acid |
Country Status (9)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10510832A (ja) * | 1994-12-20 | 1998-10-20 | エンゲルハード・コーポレーシヨン | 芳香族ポリカルボン酸の改良精製方法 |
| US5929274A (en) * | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| US6013835A (en) * | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| US6054610A (en) * | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| US5767311A (en) * | 1995-06-07 | 1998-06-16 | Glitsch International, Inc. | Method and apparatus for preparing purified terephtalic acid |
| US5756833A (en) * | 1996-02-01 | 1998-05-26 | Amoco Corporation | Catalytic purification and recovery of dicarboxylic aromatic acids |
| US5616792A (en) * | 1996-02-01 | 1997-04-01 | Amoco Corporation | Catalytic purification of dicarboxylic aromatic acid |
| US6265608B1 (en) | 1998-06-30 | 2001-07-24 | Eastman Chemical Company | Method of purifying aromatic dicarboxylic acids |
| RU2146172C1 (ru) | 1999-07-29 | 2000-03-10 | Институт катализа им.Г.К.Борескова СО РАН | Каталитическая композиция, способ ее приготовления и способ очистки терефталевой кислоты |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227145A (en) * | 1975-08-22 | 1977-03-01 | Wyss Samuel G | Ski lift tracting mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3862218A (en) * | 1968-02-15 | 1975-01-21 | Celanese Corp | Purification of terephthalic acid by thermal treatment |
| US3607921A (en) * | 1968-06-12 | 1971-09-21 | Mobil Oil Corp | Catalytic purification of terephthalic acid |
| US3639465A (en) * | 1968-06-18 | 1972-02-01 | Standard Oil Co | Purification of aromatic polycarboxylic acids by catalytic reduction using prehumidified hydrogen |
| FR2001960A1 (fr) * | 1969-02-14 | 1969-10-03 | Celanese Corp | Procede de purification d'acide terephtalique |
-
1975
- 1975-08-26 JP JP50103230A patent/JPS5227743A/ja active Granted
-
1976
- 1976-08-10 NL NL7608867A patent/NL7608867A/xx active Search and Examination
- 1976-08-12 US US05/713,825 patent/US4201872A/en not_active Expired - Lifetime
- 1976-08-12 MX MX762902U patent/MX4318E/es unknown
- 1976-08-17 DE DE19762636877 patent/DE2636877A1/de not_active Ceased
- 1976-08-24 PT PT65510A patent/PT65510B/pt unknown
- 1976-08-25 BR BR7605592A patent/BR7605592A/pt unknown
- 1976-08-25 FR FR7625690A patent/FR2322125A1/fr active Granted
- 1976-08-26 IT IT26565/76A patent/IT1064999B/it active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227145A (en) * | 1975-08-22 | 1977-03-01 | Wyss Samuel G | Ski lift tracting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| PT65510B (en) | 1978-02-15 |
| MX4318E (es) | 1982-03-22 |
| FR2322125A1 (fr) | 1977-03-25 |
| IT1064999B (it) | 1985-02-25 |
| NL7608867A (nl) | 1977-03-01 |
| JPS5227743A (en) | 1977-03-02 |
| DE2636877A1 (de) | 1977-03-03 |
| BR7605592A (pt) | 1977-08-09 |
| PT65510A (en) | 1976-09-01 |
| US4201872A (en) | 1980-05-06 |
| FR2322125B1 (US20030220297A1-20031127-C00009.png) | 1980-05-23 |
