JPS6461435A - Production of dialkylnaphthalenes - Google Patents
Production of dialkylnaphthalenesInfo
- Publication number
- JPS6461435A JPS6461435A JP21555787A JP21555787A JPS6461435A JP S6461435 A JPS6461435 A JP S6461435A JP 21555787 A JP21555787 A JP 21555787A JP 21555787 A JP21555787 A JP 21555787A JP S6461435 A JPS6461435 A JP S6461435A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- alcl3
- catalyst
- concentration
- mixture
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE:To increase concentration of a dialkylnaphthalene, by reacting naphthalenes with a lower olefin to provide an alkylnaphthalene mixture and isomerizing or trans-alkylating the resultant mixture in the presence of AlCl3 as a catalyst and HCl gas as a cocatalyst in a solvent. CONSTITUTION:Naphthalenes are reacted with a lower olefin (normally ethylene or propylene) in a solvent at 50-90 deg.C to provide an alkylnaphthalene mixture, which is then isomerized or trans-alkylated in a solvent (e.g. hexane or heptane) at 50-100 deg.C (preferably 50-90 deg.C) by adding AlCl3 as a catalyst and HCl gas as a cocatalyst to improve the concentration of a dialkylnaphthalene. The resultant product in the latter stage is separated into a solvent layer and a catalyst layer consisting of polyalkylnaphthalenes and the AlCl3. The obtained catalyst layer is subsequently circulated. The reaction can be carried out at the low temperature to suppress reaction forming heavy substances and the aimed substance is simultaneously obtained in a high concentration and yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21555787A JPS6461435A (en) | 1987-08-28 | 1987-08-28 | Production of dialkylnaphthalenes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21555787A JPS6461435A (en) | 1987-08-28 | 1987-08-28 | Production of dialkylnaphthalenes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6461435A true JPS6461435A (en) | 1989-03-08 |
| JPH0459301B2 JPH0459301B2 (en) | 1992-09-21 |
Family
ID=16674400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21555787A Granted JPS6461435A (en) | 1987-08-28 | 1987-08-28 | Production of dialkylnaphthalenes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6461435A (en) |
-
1987
- 1987-08-28 JP JP21555787A patent/JPS6461435A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0459301B2 (en) | 1992-09-21 |
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