GB1264262A - - Google Patents
Info
- Publication number
- GB1264262A GB1264262A GB1264262DA GB1264262A GB 1264262 A GB1264262 A GB 1264262A GB 1264262D A GB1264262D A GB 1264262DA GB 1264262 A GB1264262 A GB 1264262A
- Authority
- GB
- United Kingdom
- Prior art keywords
- separated
- distillation
- stream
- extractive distillation
- extractive
- 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
- C07C7/04—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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
1,264,262. Separating hydrocarbons by extractive distillation. HEINRICH KOPPERS G.m.b.H. 19 Feb., 1970 [19 Feb., 1969; 29 March, 1969], No. 8048/70. Heading C5E. Mixtures of saturated and unsaturated hydrocarbons, e.g. in pyrolyses products, are separated by extractive distillation with morpholine and/or a substituted morpholine. Suitable morpholine derivatives are the N-formyl-2,6-dimethyl-, N- formyl-, N-oxyethyl-, N-hydroxyethyl-, N- acetyl-, N-phenyl-, N-hydroxypropyl-, dimenthyl-, N-hydroxyethyl-, and nitroso-, derivatives. A feed, containing paraffins, monolefins, diolefins, and possibly small amounts of more highly unsaturated hydrocarbons, is subjected to extractive distillation at super-, normal-, or sub-atmospheric pressure to provide a head product comprising paraffins or, depending upon the conditions, a mixture of paraffins and olefins and a bottoms product comprising the extractive solvent and, depending upon the conditions, olefins and more highly unsaturated compounds or diolefins and more highly unsaturated compounds. The head product can be further separated by normal or extractive distillation and the bottoms product can be separated by distillation into a head product comprising the unsaturated hydrocarbons and a bottoms comprising the extractive solvent which is recycled to the extractive distillation. A feed 1 consisting of a mixture of hydrocarbons is separated at 2 by extractive distillation to provide a head product 4 of paraffins containing little or no olefins and a bottoms stream 5. The stream 5 is separated in an extractive distillation column 6 to provide a head stream 8 of mono-olefins, which can be further separated in a distillation column 9, and a bottoms stream 12. The stream 12 is separated by distillation at 13 to provide a stream 17 containing the diolefins and any more highly unsaturated fractions and which can be further separated by distillation at 18 and a bottoms stream 14 containing the extraction solvent which is recycled after partial regeneration at 16 to the extractive distillation columns 2 and 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1908126A DE1908126C3 (en) | 1969-02-19 | 1969-02-19 | Process for the separation of saturated hydrocarbons and olefins |
| DE1916255A DE1916255C3 (en) | 1969-03-29 | 1969-03-29 | Process for the separation of hydrocarbon mixtures which contain paraffins, monoolefins, diolefins and possibly small amounts of highly unsaturated hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1264262A true GB1264262A (en) | 1972-02-16 |
Family
ID=25757015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1264262D Expired GB1264262A (en) | 1969-02-19 | 1970-02-19 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS4941161B1 (en) |
| GB (1) | GB1264262A (en) |
-
1970
- 1970-02-17 JP JP1373470A patent/JPS4941161B1/ja active Pending
- 1970-02-19 GB GB1264262D patent/GB1264262A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4941161B1 (en) | 1974-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |