NL128444C - - Google Patents
Info
- Publication number
- NL128444C NL128444C NL128444DA NL128444C NL 128444 C NL128444 C NL 128444C NL 128444D A NL128444D A NL 128444DA NL 128444 C NL128444 C NL 128444C
- Authority
- NL
- Netherlands
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 (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278063 | 1963-10-10 | ||
| JP4215664 | 1964-07-23 | ||
| JP5128564 | 1964-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL128444C true NL128444C (de) |
Family
ID=27291086
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL128444D NL128444C (de) | 1963-10-10 | ||
| NL6411770A NL6411770A (de) | 1963-10-10 | 1964-10-09 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6411770A NL6411770A (de) | 1963-10-10 | 1964-10-09 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3431296A (de) |
| BE (1) | BE660335A (de) |
| CH (1) | CH455736A (de) |
| DE (1) | DE1493250A1 (de) |
| GB (1) | GB1071350A (de) |
| NL (2) | NL6411770A (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3529021A (en) * | 1966-03-17 | 1970-09-15 | Mobil Oil Corp | Terephthalic acid purification process |
| US3692828A (en) * | 1970-05-01 | 1972-09-19 | Gulf Research Development Co | Process for preparing phenyl sulfone carboxylic acids |
| DE2714985C2 (de) * | 1977-04-04 | 1982-05-06 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur Reinigung von Terephthalsäure |
| EP0021747B1 (de) * | 1979-07-02 | 1983-05-18 | Imperial Chemical Industries Plc | Verfahren zur Herstellung von Terephthalsäure |
| US4447646A (en) * | 1983-01-28 | 1984-05-08 | Eastman Kodak Company | Process for the purification of terephthalic acid |
| US4605763A (en) * | 1984-08-31 | 1986-08-12 | Eastman Kodak Company | Process for the purification of terephthalic 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 |
| US5929274A (en) * | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| US5767311A (en) * | 1995-06-07 | 1998-06-16 | Glitsch International, Inc. | Method and apparatus for preparing purified terephtalic acid |
| CN105218358B (zh) * | 2015-09-29 | 2017-09-12 | 江西科苑生物药业有限公司 | 一种粗均苯三甲酸的精制方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2899466A (en) * | 1959-08-11 | Purification of terephthalic acid | ||
| GB666709A (en) * | 1948-02-02 | 1952-02-20 | California Research Corp | Preparation of aromatic para dicarboxylic acids |
| GB774835A (en) * | 1954-04-29 | 1957-05-15 | Chempatents Inc | Process for the preparation of terephthalic acid |
| GB785051A (en) * | 1955-01-19 | 1957-10-23 | Ici Ltd | Purification of terephthalic acid |
| US2865708A (en) * | 1955-08-26 | 1958-12-23 | Richfield Oil Corp | Process of recovering cobalt, cerium, and manganese catalysts |
| US2923736A (en) * | 1956-11-28 | 1960-02-02 | Ici Ltd | Purification of carboxylic acids |
| DE1106751B (de) * | 1959-10-13 | 1961-05-18 | Huels Chemische Werke Ag | Verfahren zur Herstellung von Terephthalsaeure |
| US3364256A (en) * | 1964-09-09 | 1968-01-16 | Teijin Ltd | Process for preparation of high purity terephthalic acid |
-
0
- NL NL128444D patent/NL128444C/xx active
-
1964
- 1964-09-21 US US398034A patent/US3431296A/en not_active Expired - Lifetime
- 1964-09-24 GB GB39022/64A patent/GB1071350A/en not_active Expired
- 1964-09-25 DE DE19641493250 patent/DE1493250A1/de active Pending
- 1964-10-01 CH CH1275564A patent/CH455736A/de unknown
- 1964-10-09 NL NL6411770A patent/NL6411770A/xx unknown
-
1965
- 1965-02-26 BE BE660335D patent/BE660335A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1493250A1 (de) | 1969-03-20 |
| GB1071350A (en) | 1967-06-07 |
| US3431296A (en) | 1969-03-04 |
| BE660335A (de) | 1965-06-16 |
| CH455736A (de) | 1968-05-15 |
| NL6411770A (de) | 1965-04-12 |