GB1102965A - Alkylation of isobutane - Google Patents
Alkylation of isobutaneInfo
- Publication number
- GB1102965A GB1102965A GB5045565A GB5045565A GB1102965A GB 1102965 A GB1102965 A GB 1102965A GB 5045565 A GB5045565 A GB 5045565A GB 5045565 A GB5045565 A GB 5045565A GB 1102965 A GB1102965 A GB 1102965A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isobutane
- extract
- alkylation
- sulphuric acid
- catalyst
- 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
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
- C07C2/56—Addition to acyclic hydrocarbons
- C07C2/58—Catalytic processes
- C07C2/62—Catalytic processes with acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
- C07C2527/053—Sulfates or other compounds comprising the anion (SnO3n+1)2-
- C07C2527/054—Sulfuric acid or other acids with the formula H2Sn03n+1
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A process for the alkylation of isobutane comprises the steps of (1) contacting used sulphuric acid containing water and oil contaminants with propylene to form a product containing dipropyl sulphate; (2) contacting said product with a paraffinic hydrocarbon (e.g. isobutane) to form a raffinate and an extract comprising dipropyl sulphate and paraffinic hydrocarbon; (3) passing said extract into an alkylation zone in which a major proportion of said dipropyl sulphate is used to alkylate isobutane in the liquid phase in the presence of sulphuric acid alkylation catalyst, free sulphuric acid being liberated; (4) passing at least part of said catalyst containing unreacted propyl sulphates to a separate alkylation zone in which butylene and substantially all of said unreacted propyl sulphates are used to alkylate isobutane; (5) withdrawing at least part of the reaction mixture from stage (4); and (6) separating the withdrawn mixture into hydrocarbon and catalyst phases. If the paraffinic hydrocarbon used in step (2) is a normal paraffin, all or part of it is desirably flashed from the extract before passing the extract to step (3). The process economises in H2SO4 since used acid is converted back to 100% acid via dipropyl sulphate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET0029934 | 1965-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1102965A true GB1102965A (en) | 1968-02-14 |
Family
ID=7555239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5045565A Expired GB1102965A (en) | 1965-12-03 | 1965-11-26 | Alkylation of isobutane |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1493270A1 (en) |
| GB (1) | GB1102965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190226917A1 (en) * | 2018-01-19 | 2019-07-25 | Te Wire & Cable Llc | Thermocouple termination/closure and method |
-
1965
- 1965-11-26 GB GB5045565A patent/GB1102965A/en not_active Expired
- 1965-12-03 DE DE19651493270 patent/DE1493270A1/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190226917A1 (en) * | 2018-01-19 | 2019-07-25 | Te Wire & Cable Llc | Thermocouple termination/closure and method |
| US10753807B2 (en) * | 2018-01-19 | 2020-08-25 | Te Wire & Cable Llc | Thermocouple termination/closure and method |
| US11060923B2 (en) | 2018-01-19 | 2021-07-13 | Te Wire & Cable Llc | Thermocouple termination/closure and method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1493270A1 (en) | 1969-04-10 |
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