IT1075317B - Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalico - Google Patents
Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalicoInfo
- Publication number
- IT1075317B IT1075317B IT22408/77A IT2240877A IT1075317B IT 1075317 B IT1075317 B IT 1075317B IT 22408/77 A IT22408/77 A IT 22408/77A IT 2240877 A IT2240877 A IT 2240877A IT 1075317 B IT1075317 B IT 1075317B
- Authority
- IT
- Italy
- Prior art keywords
- anhydrification
- recovery
- solvent
- product
- terephthalic 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)
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22408/77A IT1075317B (it) | 1977-04-13 | 1977-04-13 | Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalico |
NLAANVRAGE7803368,A NL188282C (nl) | 1977-04-04 | 1978-03-30 | Werkwijze voor de synthese van tereftaalzuur door oxyderen van p-xyleen in azijnzuuroplossing. |
FR7809488A FR2386511A1 (fr) | 1977-04-04 | 1978-03-31 | Procede de recuperation du catalyseur et du solvant a partir de la liqueur mere d'un procede de synthese de l'acide terephtalique |
BR7802069A BR7802069A (pt) | 1977-04-04 | 1978-04-03 | Processo para a sintese de acido tereftalico com recuperacao de catalisador e solvente a partir do liquido principal |
JP3817578A JPS53127430A (en) | 1977-04-04 | 1978-04-03 | Improved method of recovering catalyst and solvent from mother liquid of phthalic acid synthesizing process |
ES468499A ES468499A1 (es) | 1977-04-04 | 1978-04-03 | Un procedimiento para la recuperacion de catalizadores y di-solventes en un metodo para la obtencion de acido tereftali-co |
SU782600750A SU1217250A3 (ru) | 1977-04-04 | 1978-04-03 | Способ обработки маточного раствора |
GB12977/78A GB1593117A (en) | 1977-04-04 | 1978-04-03 | Process for the recovery of catalyst and solvent from the mother lquor of a process for the synthesis of therephthalic acid |
MX172975A MX148713A (es) | 1977-04-04 | 1978-04-03 | Procedimiento mejorado para la recuperacion de catalizadores y disolventes de un proceso para la obtencion de acido tereftalico |
IN356/CAL/78A IN148106B (it) | 1977-04-04 | 1978-04-03 | |
DE19782814448 DE2814448A1 (de) | 1977-04-04 | 1978-04-04 | Verbessertes verfahren zur herstellung von terephthalsaeure |
CA300,710A CA1105051A (en) | 1977-04-13 | 1978-04-07 | Process for the recovery of catalyst and solvent from the mother liquor of a process for the synthesis of terephtalic acid |
BE188218A BE867683R (fr) | 1977-04-04 | 1978-05-31 | Procede de recuperation du catalyseur et du solvant a partir de la liqueur mere d'un procede de synthese de l'acide terephtalique |
US06/116,851 US4250330A (en) | 1977-04-13 | 1980-01-30 | Process for the recovery of the solvent and of the by-produced methylacetate in the synthesis of terephthalic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22408/77A IT1075317B (it) | 1977-04-13 | 1977-04-13 | Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalico |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1075317B true IT1075317B (it) | 1985-04-22 |
Family
ID=11195905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22408/77A IT1075317B (it) | 1977-04-04 | 1977-04-13 | Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalico |
Country Status (3)
Country | Link |
---|---|
US (1) | US4250330A (it) |
CA (1) | CA1105051A (it) |
IT (1) | IT1075317B (it) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5384933A (en) * | 1976-12-30 | 1978-07-26 | Mitsubishi Chem Ind Ltd | Preparation of terephthalic acid |
US4792621A (en) * | 1986-07-28 | 1988-12-20 | Amoco Corporation | Method for continuous production of aromatic carboxylic acid |
DE69511095T2 (de) * | 1994-08-23 | 2000-04-06 | E.I. Du Pont De Nemours And Co. | Dehydratisierung der essigsäure durch azeotropische destillation in der herstellung von aromatischen säure |
US5510521A (en) * | 1995-03-27 | 1996-04-23 | Eastman Chemical Company | Process for the production of aromatic carboxylic acids |
GB9602680D0 (en) * | 1996-02-09 | 1996-04-10 | Ici Plc | Distillation process |
ID22632A (id) * | 1997-04-09 | 1999-12-02 | Du Pont | Proses pemisahan air |
US6150553A (en) * | 1998-08-11 | 2000-11-21 | E. I. Du Pont De Nemours And Company | Method for recovering methyl acetate and residual acetic acid in the production acid of pure terephthalic acid |
TW483886B (en) * | 1998-08-11 | 2002-04-21 | Du Pont | Method for recovering methyl acetate and residual acetic acid in the production of pure terephtalic acid |
CN1097576C (zh) * | 2000-05-09 | 2003-01-01 | 华东理工大学 | 芳香族二元羧酸的生产方法 |
US6649773B2 (en) | 2002-03-22 | 2003-11-18 | General Electric Company | Method for the manufacture of halophthalic acids and anhydrides |
US6657068B2 (en) | 2002-03-22 | 2003-12-02 | General Electric Company | Liquid phase oxidation of halogenated ortho-xylenes |
US6657067B2 (en) | 2002-03-22 | 2003-12-02 | General Electric Company | Method for the manufacture of chlorophthalic anhydride |
ES2302470B1 (es) * | 2003-08-12 | 2009-06-09 | Amt International, Inc. | Sistema y metodo para recuperacion de acido acetico durante la produccion de acido tereftalico. |
US7541489B2 (en) * | 2004-06-30 | 2009-06-02 | Sabic Innovative Plastics Ip B.V. | Method of making halophthalic acids and halophthalic anhydrides |
US20060004223A1 (en) * | 2004-06-30 | 2006-01-05 | General Electric Company | Method of making halophthalic acids and halophthalic anhydrides |
KR100733400B1 (ko) * | 2005-08-01 | 2007-06-29 | 아신기술 주식회사 | 아세트산, 메틸아세테이트 및 물을 분리하기 위한공비증류공정 |
KR100662146B1 (ko) * | 2005-09-07 | 2006-12-27 | 한화석유화학 주식회사 | 테레프탈산 제조공정에서 발생되는 폐기물의 처리방법 |
CN101792386B (zh) * | 2010-02-04 | 2013-04-10 | 南京工业大学 | 一种处理芳香羧酸生产中溶剂及副产物的方法 |
CN102653512B (zh) * | 2011-03-02 | 2014-08-20 | 中国石油化工股份有限公司 | 一种芳香族羧酸生产过程中回收醋酸及醋酸甲酯的集成工艺 |
US20140121406A1 (en) * | 2012-10-31 | 2014-05-01 | Invista North America S.A.R.L. | Pure plant mother liquor solvent extraction system and method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2833817A (en) * | 1956-06-27 | 1958-05-06 | Mid Century Corp | Process for the preparation of terephthalic acid |
US3487108A (en) * | 1965-10-22 | 1969-12-30 | Mobil Oil Corp | Process for the preparation of benzene carboxylic acids |
-
1977
- 1977-04-13 IT IT22408/77A patent/IT1075317B/it active
-
1978
- 1978-04-07 CA CA300,710A patent/CA1105051A/en not_active Expired
-
1980
- 1980-01-30 US US06/116,851 patent/US4250330A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4250330A (en) | 1981-02-10 |
CA1105051A (en) | 1981-07-14 |
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Legal Events
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TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19960415 |