ZA735425B - A process for gaining terephthalic-acid dimethyl ester - Google Patents
A process for gaining terephthalic-acid dimethyl esterInfo
- Publication number
- ZA735425B ZA735425B ZA735425A ZA735425A ZA735425B ZA 735425 B ZA735425 B ZA 735425B ZA 735425 A ZA735425 A ZA 735425A ZA 735425 A ZA735425 A ZA 735425A ZA 735425 B ZA735425 B ZA 735425B
- Authority
- ZA
- South Africa
- Prior art keywords
- gaining
- terephthalic
- dimethyl ester
- acid dimethyl
- 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
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (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 |
|---|---|---|---|
| DE19722244662 DE2244662C3 (de) | 1972-09-12 | Verfahren zur Gewinnung von Terephthalsäuredimethylester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA735425B true ZA735425B (en) | 1974-07-31 |
Family
ID=5856087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA735425A ZA735425B (en) | 1972-09-12 | 1973-08-09 | A process for gaining terephthalic-acid dimethyl ester |
Country Status (18)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2923681C2 (de) * | 1979-06-12 | 1981-11-05 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Gewinnung und Wiederverwendung von Schwermetalloxidationskatalysator aus dem Wittem-DMT-Prozeß |
| DE3045332C2 (de) * | 1980-12-02 | 1982-11-25 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Gewinnung und Wiederverwendung von Schwermetalloxidationskatalysator aus Rückständen im Witten-DMT-Prozeß |
| DE3430555A1 (de) * | 1984-08-20 | 1986-02-27 | Hoechst Ag, 6230 Frankfurt | Verfahren zur abtrennung von dimethylisophthalat und dimethylorthophthalat aus ihrem gemisch mit dimethylterephthalat |
| US4760165A (en) * | 1985-11-13 | 1988-07-26 | Teijin Petrochemical Industries, Ltd. | Recovering useful components at least containing dimethyl terephthalate from high-boiling byproducts occurring in the production of dimethyl terephthalate |
| US4886901A (en) * | 1988-11-21 | 1989-12-12 | Amoco Corporation | Method for purifying a crude dimethyl naphthalene dicarboxylate |
| DE3904586A1 (de) * | 1989-02-16 | 1990-08-23 | Huels Chemische Werke Ag | Verfahren zur herstellung von dmt-zwischenprodukt bestimmter reinheit sowie dessen weiterverarbeitung zu reinst-dmt und/oder mittel- oder hochreiner terephthalsaeure |
| PT96056A (pt) * | 1989-12-02 | 1991-09-13 | Hoechst Ag | Processo para a purificacao de tereftalato de dimetilo |
| US5578173A (en) * | 1995-04-03 | 1996-11-26 | Eastman Kodak Company | Removal of dimethylterephthalate from a methanolysis vapor stream |
| DE19530970A1 (de) * | 1995-08-23 | 1997-02-27 | Huels Chemische Werke Ag | Verfahren zur Aufarbeitung von Rückständen aus der Rohester-Destillation bei der Herstellung von Dimethylterephthalat (DMT) |
| US8415496B2 (en) | 2009-06-16 | 2013-04-09 | Amyris, Inc. | Biobased polyesters |
| US8426639B2 (en) * | 2009-06-16 | 2013-04-23 | Amyris, Inc. | Preparation of trans, trans muconic acid and trans, trans muconates |
| JP2012530144A (ja) | 2009-06-16 | 2012-11-29 | アミリス， インコーポレイテッド | シクロヘキセン１，４−カルボキシレート |
| EP2521770B1 (en) | 2010-01-08 | 2015-11-25 | Amyris, Inc. | Methods for producing isomers of muconic acid and muconate salts |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2773090A (en) * | 1953-03-10 | 1956-12-04 | Du Pont | Process for preparing pure dimethylterephthalate from the carbonylation of aromatic halides |
| DE1139827B (de) * | 1961-04-15 | 1962-11-22 | Chemische Werke Witten Gesell schaft mit beschrankter Haftung, Witten | Verfahren zur verbesserten Aufarbeitung von Terephthalsäuredimethylester und Isophthalsäuredimethylester enthaltenden Mutterlaugen. |
| DE1142858B (de) * | 1961-07-19 | 1963-01-31 | Witten Gmbh Chem Werke | Verfahren zur Gewinnung von Diphenylpolycarbonsaeuremethylestern |
-
1973
- 1973-07-10 DD DD172189A patent/DD104973A5/xx unknown
- 1973-08-01 IT IT51779/73A patent/IT990110B/it active
- 1973-08-03 IN IN1798/CAL/73A patent/IN140025B/en unknown
- 1973-08-09 ZA ZA735425A patent/ZA735425B/xx unknown
- 1973-08-11 ES ES417790A patent/ES417790A1/es not_active Expired
- 1973-09-06 AR AR249952A patent/AR198532A1/es active
- 1973-09-07 CH CH1289873A patent/CH580559A5/xx not_active IP Right Cessation
- 1973-09-07 RO RO7300076017A patent/RO63001A/ro unknown
- 1973-09-10 PL PL1973165130A patent/PL91566B1/pl unknown
- 1973-09-10 BR BR6983/73A patent/BR7306983D0/pt unknown
- 1973-09-10 AT AT780973A patent/AT326112B/de not_active IP Right Cessation
- 1973-09-11 CA CA180,722A patent/CA1022180A/en not_active Expired
- 1973-09-11 GB GB4276673A patent/GB1427783A/en not_active Expired
- 1973-09-11 FR FR7332677A patent/FR2198928B1/fr not_active Expired
- 1973-09-12 US US05/396,468 patent/US4126755A/en not_active Expired - Lifetime
- 1973-09-12 NL NLAANVRAGE7312572,A patent/NL173052C/xx not_active IP Right Cessation
- 1973-09-12 BE BE135579A patent/BE804767A/xx unknown
- 1973-09-12 JP JP48102988A patent/JPS4966644A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1427783A (en) | 1976-03-10 |
| ES417790A1 (es) | 1976-02-16 |
| CA1022180A (en) | 1977-12-06 |
| DE2244662B2 (de) | 1976-06-10 |
| NL173052C (nl) | 1983-12-01 |
| JPS4966644A (US06229276-20010508-P00081.png) | 1974-06-27 |
| RO63001A (fr) | 1978-05-15 |
| DD104973A5 (US06229276-20010508-P00081.png) | 1974-04-05 |
| NL173052B (nl) | 1983-07-01 |
| AT326112B (de) | 1975-11-25 |
| US4126755A (en) | 1978-11-21 |
| PL91566B1 (US06229276-20010508-P00081.png) | 1977-03-31 |
| AR198532A1 (es) | 1974-06-28 |
| IT990110B (it) | 1975-06-20 |
| FR2198928A1 (US06229276-20010508-P00081.png) | 1974-04-05 |
| IN140025B (US06229276-20010508-P00081.png) | 1976-09-04 |
| NL7312572A (US06229276-20010508-P00081.png) | 1974-03-14 |
| BR7306983D0 (pt) | 1974-07-18 |
| ATA780973A (de) | 1975-02-15 |
| DE2244662A1 (de) | 1974-04-04 |
| BE804767A (fr) | 1974-01-02 |
| FR2198928B1 (US06229276-20010508-P00081.png) | 1977-02-25 |
| CH580559A5 (US06229276-20010508-P00081.png) | 1976-10-15 |
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