GB1465664A - Process for preparing terephthalic acid or isophthalic acid - Google Patents
Process for preparing terephthalic acid or isophthalic acidInfo
- Publication number
- GB1465664A GB1465664A GB3683875A GB3683875A GB1465664A GB 1465664 A GB1465664 A GB 1465664A GB 3683875 A GB3683875 A GB 3683875A GB 3683875 A GB3683875 A GB 3683875A GB 1465664 A GB1465664 A GB 1465664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- gas
- molecular oxygen
- isophthalic acid
- entrained
- Prior art date
- 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
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title abstract 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical compound CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 abstract 4
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 3
- 229910001882 dioxygen Inorganic materials 0.000 abstract 3
- -1 CO 2 Chemical compound 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052786 argon Inorganic materials 0.000 abstract 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052794 bromium Inorganic materials 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 239000001307 helium Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 150000002697 manganese compounds Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
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)
Abstract
1465664 Process for the preparation of terephthalic and isophthalic acid TEIJIN Ltd 8 Sept 1975 [10 Sept 1974] 36838/75 Heading C2C Terephthalic acid or isophthalic acid is prepared by oxidizing para- or meta-xylene in the liquid phase with a molecular oxygen-containing gas in a C 2 -C 4 aliphatic carboxylic acid, e.g. acetic acid in the presence of a heavy metal catalyst, e.g. cobalt or manganese compounds or mixtures thereof, wherein the para- or metaxylene is introduced into the liquid phase of the reaction system while it is entrained by a gas. The xylene may be entrained in the form of vapour by the entraining gas which may be a molecular oxygen-containing gas such as air and pure molecular oxygen with other inert gases such as nitrogen, CO 2 , or argon or any non-reactive gas in the oxidation reaction such as nitrogen, carbon dioxide, helium or argon. The oxidation may be carried out in the presence of bromine or a bromine compound. Examples are described with the aid of a flow diagram.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10342774A JPS5132534A (en) | 1974-09-10 | 1974-09-10 | TEREFUTARUSANNOSEIZOHO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1465664A true GB1465664A (en) | 1977-02-23 |
Family
ID=14353724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3683875A Expired GB1465664A (en) | 1974-09-10 | 1975-09-08 | Process for preparing terephthalic acid or isophthalic acid |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5132534A (en) |
| DE (1) | DE2540331C3 (en) |
| FR (1) | FR2284585A1 (en) |
| GB (1) | GB1465664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8952195B2 (en) | 2010-06-30 | 2015-02-10 | Uop Llc | Process for oxidizing alkyl aromatic compounds |
| US9079846B2 (en) | 2012-10-12 | 2015-07-14 | Uop Llc | Process for oxidizing impurities in crude terephthalic acid |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523030A (en) * | 1975-06-25 | 1977-01-11 | Mitsubishi Chem Ind Ltd | Process for manufacturing high purity terephthalic acid |
| JPS5470235A (en) * | 1977-11-14 | 1979-06-05 | Mitsubishi Chem Ind Ltd | Preparation of terephthalic acid |
-
1974
- 1974-09-10 JP JP10342774A patent/JPS5132534A/en active Granted
-
1975
- 1975-09-08 GB GB3683875A patent/GB1465664A/en not_active Expired
- 1975-09-09 FR FR7527611A patent/FR2284585A1/en active Granted
- 1975-09-10 DE DE19752540331 patent/DE2540331C3/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8952195B2 (en) | 2010-06-30 | 2015-02-10 | Uop Llc | Process for oxidizing alkyl aromatic compounds |
| US9079846B2 (en) | 2012-10-12 | 2015-07-14 | Uop Llc | Process for oxidizing impurities in crude terephthalic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2540331C3 (en) | 1978-08-31 |
| FR2284585A1 (en) | 1976-04-09 |
| JPS5745211B2 (en) | 1982-09-27 |
| DE2540331A1 (en) | 1976-03-25 |
| FR2284585B1 (en) | 1978-04-07 |
| JPS5132534A (en) | 1976-03-19 |
| DE2540331B2 (en) | 1977-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |