GB1054534A - - Google Patents
Info
- Publication number
- GB1054534A GB1054534A GB1054534DA GB1054534A GB 1054534 A GB1054534 A GB 1054534A GB 1054534D A GB1054534D A GB 1054534DA GB 1054534 A GB1054534 A GB 1054534A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulpholane
- hydrocarbons
- sulpholene
- purified
- carried out
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/46—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom
- C07D333/48—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom by oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,054,534. Sulpholanes and their manufacture and purification. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 21. 1965. No. 26046/65. Heading C2C. A sulpholane is purified by subjecting it to an extractive treatment with an aliphatic hydrocarbon or mixture of aliphatic hydrocarbons, the term " aliphatic hydrocarbons " being used to include cycloaliphatic hydrocarbons. The hydrocarbons are preferably those which are at least partially immiscible with the sulpholane and which can be separated from the latter by distillation and one or more other compounds may also be present but the presence of aromatic hydrocarbons should be avoided. Specified solvents are cyclohexane and petroleum ether (B.P. 60-80‹ C.). The process is preferably carried out within the temperature range 20- 60‹ C. and in at least two stages. The purified sulpholane may be used as a solvent for the manufacture of a sulpholane, by reacting a 1: 3 alkadiene with sulphur dioxide to produce a sulpholene and catalytically hydrogenating the sulpholene. both steps of the process being carried out in the presence of the purified sulpholane. The hydrogenation may be carried out, in the case of 3-sulpholene, in the presence of Raney nickel and at 30‹ C. under a hydrogen pressure of 500 p.s.i.g. in a stirred autoclave.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1054534A true GB1054534A (en) |
Family
ID=1758183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1054534D Active GB1054534A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1054534A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103824A2 (en) * | 1982-09-20 | 1984-03-28 | Dow Corning Corporation | Separation of chlorosilanes |
| FR2569695A1 (en) * | 1984-08-31 | 1986-03-07 | El Paso Products Co | PROCESS FOR THE PURIFICATION OF SULFOLANE USE FROM A PROCESS FOR OBTAINING TERTIO-BUTYLSTYRENE |
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0
- GB GB1054534D patent/GB1054534A/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103824A2 (en) * | 1982-09-20 | 1984-03-28 | Dow Corning Corporation | Separation of chlorosilanes |
| EP0103824A3 (en) * | 1982-09-20 | 1985-11-21 | Dow Corning Corporation | Separation of chlorosilanes |
| FR2569695A1 (en) * | 1984-08-31 | 1986-03-07 | El Paso Products Co | PROCESS FOR THE PURIFICATION OF SULFOLANE USE FROM A PROCESS FOR OBTAINING TERTIO-BUTYLSTYRENE |
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