FR2132098A1 - Butadiene recovery - from hydrocarbon mixtures by extractive distillation - Google Patents
Butadiene recovery - from hydrocarbon mixtures by extractive distillationInfo
- Publication number
- FR2132098A1 FR2132098A1 FR7210706A FR7210706A FR2132098A1 FR 2132098 A1 FR2132098 A1 FR 2132098A1 FR 7210706 A FR7210706 A FR 7210706A FR 7210706 A FR7210706 A FR 7210706A FR 2132098 A1 FR2132098 A1 FR 2132098A1
- Authority
- FR
- France
- Prior art keywords
- extractive distillation
- butadiene
- hydrocarbon mixtures
- zone
- butadiene recovery
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
- C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
- C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Recovery of butadiene from mixts. of this with other C4 hydrocarbons by subjecting the mixt. to extractive distillation with a polar solvent (esp. acetonitrile contg. ca. 10% water), passing the solvent (opt. after partial discharge of dissolved material) to a first stripping zone working at a lower pressure than the extractive distillation zone, to give a butadiene-enriched vapour steam, compressing this stream and recycling part of it to the extractive distillation zone and passing the remainder to a second stripping zone from which substantially pure butadiene is obtd.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12908671A | 1971-03-29 | 1971-03-29 | |
| US12908571A | 1971-03-29 | 1971-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2132098A1 true FR2132098A1 (en) | 1972-11-17 |
| FR2132098B1 FR2132098B1 (en) | 1974-09-13 |
Family
ID=26827208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7210706A Granted FR2132098A1 (en) | 1971-03-29 | 1972-03-27 | Butadiene recovery - from hydrocarbon mixtures by extractive distillation |
Country Status (13)
| Country | Link |
|---|---|
| BE (1) | BE781027A (en) |
| CA (1) | CA987630A (en) |
| CS (1) | CS188876B2 (en) |
| DD (1) | DD98665A5 (en) |
| DE (1) | DE2214940C2 (en) |
| ES (1) | ES401205A1 (en) |
| FI (1) | FI57251C (en) |
| FR (1) | FR2132098A1 (en) |
| IT (1) | IT950801B (en) |
| NL (1) | NL171696C (en) |
| PL (1) | PL83372B1 (en) |
| RO (1) | RO60478A (en) |
| SE (1) | SE390019B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2399397A1 (en) * | 1977-08-02 | 1979-03-02 | Polysar Ltd | PROCESS FOR SEPARATING BUTADIENE FROM HYDROCARBON MIXTURES |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3317627A (en) * | 1963-10-25 | 1967-05-02 | Shell Oil Co | High purity alkadienes by extractive distillation |
| FR1488756A (en) * | 1965-08-06 | 1967-07-13 | Union Carbide Corp | Extractive distillation |
-
1972
- 1972-03-22 BE BE781027A patent/BE781027A/xx not_active IP Right Cessation
- 1972-03-24 NL NL7203949A patent/NL171696C/en not_active IP Right Cessation
- 1972-03-27 ES ES401205A patent/ES401205A1/en not_active Expired
- 1972-03-27 CS CS203672A patent/CS188876B2/en unknown
- 1972-03-27 RO RO7028772A patent/RO60478A/ro unknown
- 1972-03-27 FI FI83972A patent/FI57251C/en active
- 1972-03-27 PL PL15435072A patent/PL83372B1/en unknown
- 1972-03-27 DD DD16195172A patent/DD98665A5/xx unknown
- 1972-03-27 SE SE396972A patent/SE390019B/en unknown
- 1972-03-27 FR FR7210706A patent/FR2132098A1/en active Granted
- 1972-03-27 CA CA138,238A patent/CA987630A/en not_active Expired
- 1972-03-27 IT IT2244072A patent/IT950801B/en active
- 1972-03-27 DE DE19722214940 patent/DE2214940C2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3317627A (en) * | 1963-10-25 | 1967-05-02 | Shell Oil Co | High purity alkadienes by extractive distillation |
| FR1488756A (en) * | 1965-08-06 | 1967-07-13 | Union Carbide Corp | Extractive distillation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2399397A1 (en) * | 1977-08-02 | 1979-03-02 | Polysar Ltd | PROCESS FOR SEPARATING BUTADIENE FROM HYDROCARBON MIXTURES |
Also Published As
| Publication number | Publication date |
|---|---|
| FI57251C (en) | 1980-07-10 |
| ES401205A1 (en) | 1975-02-16 |
| CS188876B2 (en) | 1979-03-30 |
| RO60478A (en) | 1976-11-15 |
| IT950801B (en) | 1973-06-20 |
| NL171696C (en) | 1983-05-02 |
| FI57251B (en) | 1980-03-31 |
| BE781027A (en) | 1972-09-22 |
| DE2214940C2 (en) | 1982-12-09 |
| FR2132098B1 (en) | 1974-09-13 |
| NL171696B (en) | 1982-12-01 |
| PL83372B1 (en) | 1975-12-31 |
| CA987630A (en) | 1976-04-20 |
| DD98665A5 (en) | 1973-07-05 |
| DE2214940A1 (en) | 1973-02-01 |
| SE390019B (en) | 1976-11-29 |
| NL7203949A (en) | 1972-10-03 |
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