GB1443411A - Anhydride separation process - Google Patents
Anhydride separation processInfo
- Publication number
- GB1443411A GB1443411A GB1129475A GB1129475A GB1443411A GB 1443411 A GB1443411 A GB 1443411A GB 1129475 A GB1129475 A GB 1129475A GB 1129475 A GB1129475 A GB 1129475A GB 1443411 A GB1443411 A GB 1443411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anhydride
- march
- separation process
- maleic
- phthalic anhydrides
- 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
- 150000008064 anhydrides Chemical class 0.000 title abstract 3
- 238000000926 separation method Methods 0.000 title 1
- 230000002745 absorbent Effects 0.000 abstract 2
- 239000002250 absorbent Substances 0.000 abstract 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N phthalic anhydride Chemical class C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 abstract 2
- ZRNAXXOMIZEIBC-UHFFFAOYSA-N 2,5,5,6,6-pentamethylcyclohex-2-ene-1,4-dione Chemical compound CC=1C(C(C(C(C1)=O)(C)C)(C)C)=O ZRNAXXOMIZEIBC-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 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
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Furan Compounds (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45248874A | 1974-03-18 | 1974-03-18 | |
| US55007075A | 1975-02-14 | 1975-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1443411A true GB1443411A (en) | 1976-07-21 |
Family
ID=27036787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1129475A Expired GB1443411A (en) | 1974-03-18 | 1975-03-18 | Anhydride separation process |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5442962B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1057766A (enrdf_load_stackoverflow) |
| DE (1) | DE2510479C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2264812B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1443411A (enrdf_load_stackoverflow) |
| IT (1) | IT1034245B (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4314946A (en) | 1979-03-20 | 1982-02-09 | Ftalital Prodotti Chimici Speciali S.P.A. | Process for the continuous separation of maleic anhydride from process gases |
| US8940915B2 (en) | 2011-05-11 | 2015-01-27 | Huntsman Petrochemical Llc | Solvent for recovery of maleic anhydride from a gas stream |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850758A (en) * | 1973-07-02 | 1974-11-26 | Allied Chem | Purification of crude maleic anhydride by treatment with dimethylbenzophenone |
-
1975
- 1975-03-10 FR FR7507438A patent/FR2264812B1/fr not_active Expired
- 1975-03-11 DE DE19752510479 patent/DE2510479C3/de not_active Expired
- 1975-03-13 IT IT2122475A patent/IT1034245B/it active
- 1975-03-17 CA CA222,291A patent/CA1057766A/en not_active Expired
- 1975-03-18 JP JP3288375A patent/JPS5442962B2/ja not_active Expired
- 1975-03-18 GB GB1129475A patent/GB1443411A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4314946A (en) | 1979-03-20 | 1982-02-09 | Ftalital Prodotti Chimici Speciali S.P.A. | Process for the continuous separation of maleic anhydride from process gases |
| US8940915B2 (en) | 2011-05-11 | 2015-01-27 | Huntsman Petrochemical Llc | Solvent for recovery of maleic anhydride from a gas stream |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2510479A1 (de) | 1975-09-25 |
| JPS5442962B2 (enrdf_load_stackoverflow) | 1979-12-17 |
| DE2510479B2 (de) | 1979-01-18 |
| DE2510479C3 (de) | 1979-09-20 |
| JPS50131923A (enrdf_load_stackoverflow) | 1975-10-18 |
| FR2264812A1 (enrdf_load_stackoverflow) | 1975-10-17 |
| FR2264812B1 (enrdf_load_stackoverflow) | 1978-10-20 |
| IT1034245B (it) | 1979-09-10 |
| CA1057766A (en) | 1979-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950317 |