IT1031560B - PROCESS FOR THE PREPARATION OF GLYCOLETERS - Google Patents
PROCESS FOR THE PREPARATION OF GLYCOLETERSInfo
- Publication number
- IT1031560B IT1031560B IT2006475A IT2006475A IT1031560B IT 1031560 B IT1031560 B IT 1031560B IT 2006475 A IT2006475 A IT 2006475A IT 2006475 A IT2006475 A IT 2006475A IT 1031560 B IT1031560 B IT 1031560B
- Authority
- IT
- Italy
- Prior art keywords
- catalyst
- circulated
- reaction mixture
- feb
- ethylene oxide
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/02—Preparation of ethers from oxiranes
- C07C41/03—Preparation of ethers from oxiranes by reaction of oxirane rings with hydroxy groups
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
1481895 Preparation of glycol ethers HOECHST AG 7 Feb 1975 [9 Feb 1974] 5325/75 Heading C2C Glycol ethers are produced by reacting ethylene oxide with a C 1 -C 4 straight or branched chain alcohol in the liquid phase at superatmospheric pressure and a temperature of up to 120‹ C. in a first step in the presence of a solid catalyst, either the catalyst and reaction mixture being circulated or the catalyst being fixed and the reaction mixture circulated, the reaction being completed in a second step either in the presence of the same solid acid catalyst at up to 120‹ C. or in the presence of an alkali at up to 200‹ C. The solid catalyst is for example aluminium hydrosilicate (preferably montmorillonite), silica gel or an acidic ion exchanger. The major product is the monoether of ethylene glycol, with minor amounts of polyglycol ethers, the alcohol: ethylene oxide ratio in the feed being in the range 5.5 : 1 to 11 : 1, the temperature in the main reactor 100‹ C. and the pressure 20 atm. Various reactor layouts are described where the catalyst is either completely circulated with the reaction mixture, circulated in part with the mixture, or is in a fixed bed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742406293 DE2406293B1 (en) | 1974-02-09 | 1974-02-09 | Process for the production of glycol ethers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1031560B true IT1031560B (en) | 1979-05-10 |
Family
ID=5907044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2006475A IT1031560B (en) | 1974-02-09 | 1975-02-07 | PROCESS FOR THE PREPARATION OF GLYCOLETERS |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS50108206A (en) |
| BE (1) | BE825358A (en) |
| DE (1) | DE2406293B1 (en) |
| ES (1) | ES434409A1 (en) |
| FR (1) | FR2260554B1 (en) |
| GB (1) | GB1481895A (en) |
| IT (1) | IT1031560B (en) |
| NL (1) | NL7501303A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930688B2 (en) * | 1978-10-05 | 1984-07-28 | 昭和電工株式会社 | Method for producing alkylene glycol ether |
| DE3067396D1 (en) * | 1979-12-22 | 1984-05-10 | British Petroleum Co Plc | Proton-catalysed reactions catalysed by hydrogen ion-exchanged layered clays |
| DE3833076A1 (en) * | 1987-09-29 | 1989-04-06 | Lion Corp | ALCOXYLATION CATALYST |
| US6611106B2 (en) | 2001-03-19 | 2003-08-26 | The Regents Of The University Of California | Controlled fusion in a field reversed configuration and direct energy conversion |
-
1974
- 1974-02-09 DE DE19742406293 patent/DE2406293B1/en not_active Withdrawn
-
1975
- 1975-02-03 ES ES75434409A patent/ES434409A1/en not_active Expired
- 1975-02-04 NL NL7501303A patent/NL7501303A/en not_active Application Discontinuation
- 1975-02-07 IT IT2006475A patent/IT1031560B/en active
- 1975-02-07 GB GB532575A patent/GB1481895A/en not_active Expired
- 1975-02-07 JP JP1551375A patent/JPS50108206A/ja active Pending
- 1975-02-10 BE BE153208A patent/BE825358A/en unknown
- 1975-02-10 FR FR7504044A patent/FR2260554B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1481895A (en) | 1977-08-03 |
| FR2260554B1 (en) | 1978-08-18 |
| NL7501303A (en) | 1975-08-12 |
| ES434409A1 (en) | 1976-11-16 |
| FR2260554A1 (en) | 1975-09-05 |
| JPS50108206A (en) | 1975-08-26 |
| BE825358A (en) | 1975-08-11 |
| DE2406293B1 (en) | 1975-05-22 |
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