GB1283519A - The separation of conjugated diolefins - Google Patents
The separation of conjugated diolefinsInfo
- Publication number
- GB1283519A GB1283519A GB34914/70A GB3491470A GB1283519A GB 1283519 A GB1283519 A GB 1283519A GB 34914/70 A GB34914/70 A GB 34914/70A GB 3491470 A GB3491470 A GB 3491470A GB 1283519 A GB1283519 A GB 1283519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extraction
- extractive distillation
- conjugated dienes
- july
- dienes
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0488—Flow sheets
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/10—Systems containing only non-condensed rings with a five-membered ring the ring being unsaturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1283519 separating conjugated dienes SNAM PROGETTI SpA 17 July 1970 [18 July 1969] 34914/70 Heading C5E Conjugated dienes are separated from hydrocarbon mixtures by extraction or extractive distillation with a morpholine derivative having an oxygen-containing substituent, e.g. N-formyl morpholine. A hydrocarbon mixture containing at least one acyclic conjugated diene may be subjected to a first extraction or extractive distillation so as to remove the less polar components (e.g. saturated hydrocarbons and monoolefins) and then to a second extraction or extractive distillation so as to remove the more polar components e.g. cyclic conjugated dienes, acetylenes or carbonyl compounds. Two or more acyclic dienes recovered from the second stage may be separated from each other by subsequent rectification. The morpholine derivative may be used in aqueous mixture e.g. up to 20 wt. per cent water. Examples describe the separation of butadiene, isoprene piperylene and cyclopentadiene from various mixtures.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1981469 | 1969-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1283519A true GB1283519A (en) | 1972-07-26 |
Family
ID=11161495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34914/70A Expired GB1283519A (en) | 1969-07-18 | 1970-07-17 | The separation of conjugated diolefins |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5028923B1 (en) |
| AT (1) | AT303692B (en) |
| BE (1) | BE753352A (en) |
| BG (1) | BG24658A3 (en) |
| CA (1) | CA956265A (en) |
| CS (2) | CS152477B2 (en) |
| DE (1) | DE2035335C3 (en) |
| DK (1) | DK131144B (en) |
| FR (1) | FR2051834B1 (en) |
| GB (1) | GB1283519A (en) |
| LU (1) | LU61347A1 (en) |
| NL (1) | NL164839C (en) |
| PL (1) | PL81307B1 (en) |
| RO (1) | RO59693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0036735B1 (en) * | 1980-03-15 | 1983-05-25 | Japan Synthetic Rubber Co., Ltd. | Process for producing 1,3-butadiene or 2-methyl-1,3-butadiene of high purity |
-
1970
- 1970-07-08 CS CS4800A patent/CS152477B2/cs unknown
- 1970-07-08 CS CS701472*1A patent/CS159201B2/cs unknown
- 1970-07-10 CA CA088,079A patent/CA956265A/en not_active Expired
- 1970-07-13 BE BE753352D patent/BE753352A/en not_active IP Right Cessation
- 1970-07-16 FR FR707026110A patent/FR2051834B1/fr not_active Expired
- 1970-07-16 DE DE2035335A patent/DE2035335C3/en not_active Expired
- 1970-07-16 LU LU61347D patent/LU61347A1/xx unknown
- 1970-07-17 AT AT654670A patent/AT303692B/en not_active IP Right Cessation
- 1970-07-17 JP JP45062183A patent/JPS5028923B1/ja active Pending
- 1970-07-17 PL PL1970142132A patent/PL81307B1/pl unknown
- 1970-07-17 GB GB34914/70A patent/GB1283519A/en not_active Expired
- 1970-07-17 BG BG015210A patent/BG24658A3/en unknown
- 1970-07-17 DK DK372770AA patent/DK131144B/en not_active IP Right Cessation
- 1970-07-17 NL NL7010678.A patent/NL164839C/en not_active IP Right Cessation
- 1970-07-18 RO RO63969A patent/RO59693A/ro unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0036735B1 (en) * | 1980-03-15 | 1983-05-25 | Japan Synthetic Rubber Co., Ltd. | Process for producing 1,3-butadiene or 2-methyl-1,3-butadiene of high purity |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2035335A1 (en) | 1971-02-04 |
| CA956265A (en) | 1974-10-15 |
| CS152477B2 (en) | 1973-12-19 |
| BE753352A (en) | 1970-12-16 |
| FR2051834B1 (en) | 1973-04-27 |
| LU61347A1 (en) | 1970-09-16 |
| CS159201B2 (en) | 1974-12-27 |
| DK131144B (en) | 1975-06-02 |
| AT303692B (en) | 1972-12-11 |
| DE2035335C3 (en) | 1979-10-31 |
| RO59693A (en) | 1976-03-15 |
| DE2035335B2 (en) | 1973-03-29 |
| PL81307B1 (en) | 1975-08-30 |
| NL164839C (en) | 1981-02-16 |
| BG24658A3 (en) | 1978-04-12 |
| NL164839B (en) | 1980-09-15 |
| JPS5028923B1 (en) | 1975-09-19 |
| FR2051834A1 (en) | 1971-04-09 |
| NL7010678A (en) | 1971-01-20 |
| DK131144C (en) | 1975-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |