IE45504L - Preparing iso- or tere-phthalic acid - Google Patents
Preparing iso- or tere-phthalic acidInfo
- Publication number
- IE45504L IE45504L IE771543A IE154377A IE45504L IE 45504 L IE45504 L IE 45504L IE 771543 A IE771543 A IE 771543A IE 154377 A IE154377 A IE 154377A IE 45504 L IE45504 L IE 45504L
- Authority
- IE
- Ireland
- Prior art keywords
- iso
- water
- percent
- preparation
- tere
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
ISO- OR TEREPHTHALIC PREPARATION IN A BENZOIC ACID-WATER SOLVENT SYSTEM The present invention relates to the preparation of iso- or terephthalic acid by the oxidation of m- or p-xylene with molecular oxygen at elevated temperatures and under liquid phase conditions in the presence of catalysis provided by a combination of one or more transition metal oxidation catalysts and a source of bromine improved by the use of a liquid solvent system consisting essentially of benzoic acid and at least 3 percent and up to about 15 percent by weight of water which provides commercially feasible control of oxidation temperature not otherwise feasible in the absence of the water component of said catalyst system when said xylenes are oxidized.
[CA1079296A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70835876A | 1976-07-26 | 1976-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE45504L true IE45504L (en) | 1978-01-26 |
| IE45504B1 IE45504B1 (en) | 1982-09-08 |
Family
ID=24845486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1543/77A IE45504B1 (en) | 1976-07-26 | 1977-07-25 | Process for the preparation of iso- or terephthalic acid |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5315334A (en) |
| AR (1) | AR211428Q (en) |
| AU (1) | AU510097B2 (en) |
| BE (1) | BE857068A (en) |
| BR (1) | BR7704878A (en) |
| CA (1) | CA1079296A (en) |
| CS (1) | CS197297B2 (en) |
| DD (1) | DD132428A5 (en) |
| DE (1) | DE2732149A1 (en) |
| DK (1) | DK334777A (en) |
| ES (1) | ES461021A1 (en) |
| FR (1) | FR2359809A1 (en) |
| GB (1) | GB1577544A (en) |
| IE (1) | IE45504B1 (en) |
| IT (1) | IT1079740B (en) |
| LU (1) | LU77836A1 (en) |
| MX (1) | MX145448A (en) |
| NL (1) | NL7707202A (en) |
| PL (1) | PL199858A1 (en) |
| SU (1) | SU793378A3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2893860B2 (en) * | 1990-05-17 | 1999-05-24 | 三菱瓦斯化学株式会社 | Production method of high purity isophthalic acid |
| GB9210832D0 (en) * | 1992-05-21 | 1992-07-08 | Ici Plc | Bromine catalysed oxidation process |
| DE59310066D1 (en) * | 1992-11-04 | 2000-08-03 | Clariant Gmbh | Process for the preparation of fluorinated benziles |
| ES2104512B1 (en) * | 1995-09-21 | 1998-07-01 | Interquisa | INDUSTRIAL PROCEDURE FOR THE MANUFACTURE OF AROMATIC CARBOXYL ACIDS. |
| PL389529A1 (en) | 2009-11-10 | 2011-05-23 | Fabryka Maszyn FAMUR Spółka Akcyjna | Method for mounting the arm to the body of longwall coal miner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6413067A (en) * | 1963-11-14 | 1965-05-17 |
-
1977
- 1977-06-27 AU AU26500/77A patent/AU510097B2/en not_active Expired
- 1977-06-29 NL NL7707202A patent/NL7707202A/en not_active Application Discontinuation
- 1977-06-30 MX MX169677A patent/MX145448A/en unknown
- 1977-07-04 IT IT50113/77A patent/IT1079740B/en active
- 1977-07-15 CA CA282,898A patent/CA1079296A/en not_active Expired
- 1977-07-15 DE DE19772732149 patent/DE2732149A1/en not_active Ceased
- 1977-07-19 GB GB30269/77A patent/GB1577544A/en not_active Expired
- 1977-07-22 BE BE179575A patent/BE857068A/en not_active IP Right Cessation
- 1977-07-25 BR BR7704878A patent/BR7704878A/en unknown
- 1977-07-25 IE IE1543/77A patent/IE45504B1/en unknown
- 1977-07-25 LU LU77836A patent/LU77836A1/xx unknown
- 1977-07-25 DK DK334777A patent/DK334777A/en not_active Application Discontinuation
- 1977-07-25 DD DD7700200266A patent/DD132428A5/en unknown
- 1977-07-25 FR FR7722785A patent/FR2359809A1/en active Granted
- 1977-07-25 AR AR268551A patent/AR211428Q/en unknown
- 1977-07-26 PL PL19985877A patent/PL199858A1/en unknown
- 1977-07-26 SU SU772505759A patent/SU793378A3/en active
- 1977-07-26 ES ES461021A patent/ES461021A1/en not_active Expired
- 1977-07-26 JP JP8887877A patent/JPS5315334A/en active Pending
- 1977-07-26 CS CS774957A patent/CS197297B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SU793378A3 (en) | 1980-12-30 |
| GB1577544A (en) | 1980-10-22 |
| JPS5315334A (en) | 1978-02-13 |
| LU77836A1 (en) | 1978-02-02 |
| CS197297B2 (en) | 1980-04-30 |
| MX145448A (en) | 1982-02-17 |
| AU510097B2 (en) | 1980-06-05 |
| BR7704878A (en) | 1979-07-03 |
| PL199858A1 (en) | 1979-01-02 |
| BE857068A (en) | 1978-01-23 |
| ES461021A1 (en) | 1978-05-16 |
| DK334777A (en) | 1978-01-27 |
| FR2359809A1 (en) | 1978-02-24 |
| AR211428Q (en) | 1977-12-15 |
| NL7707202A (en) | 1978-01-30 |
| AU2650077A (en) | 1979-01-04 |
| IT1079740B (en) | 1985-05-13 |
| CA1079296A (en) | 1980-06-10 |
| IE45504B1 (en) | 1982-09-08 |
| DE2732149A1 (en) | 1978-02-02 |
| DD132428A5 (en) | 1978-09-27 |
| FR2359809B1 (en) | 1980-07-11 |
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