IT1252070B - Procedimento per la preparazione di carbonati alchilici - Google Patents
Procedimento per la preparazione di carbonati alchiliciInfo
- Publication number
- IT1252070B IT1252070B ITMI913141A ITMI913141A IT1252070B IT 1252070 B IT1252070 B IT 1252070B IT MI913141 A ITMI913141 A IT MI913141A IT MI913141 A ITMI913141 A IT MI913141A IT 1252070 B IT1252070 B IT 1252070B
- Authority
- IT
- Italy
- Prior art keywords
- preparation
- alkyl carbonates
- distillation
- recycling
- permeated
- Prior art date
Links
- 125000005910 alkyl carbonate group Chemical group 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 2
- 238000004064 recycling Methods 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000006315 carbonylation Effects 0.000 abstract 1
- 238000005810 carbonylation reaction Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005832 oxidative carbonylation reaction Methods 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
- C07C68/08—Purification; Separation; Stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedimento migliorato per la preparazione di carbonati alchilici consistente nella carbonilazione ossidativa di alcoli e caratterizzato, dopo la fase di carbonilazione, dal fatto che si eseguano le seguenti operazioni fondamentali:a) contatto della miscela di reazione con una membrana a permeazione selettiva;b) recupero dalla miscela non permeata del dialchilcarbonato, per distillazione;c) riciclo dell'alcool alla reazione di sintesi;d) distillazione a strippaggio della fase permeata con riciclo alla sintesi dell'eventuale alcool recuperato.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI913141A IT1252070B (it) | 1991-11-25 | 1991-11-25 | Procedimento per la preparazione di carbonati alchilici |
| BE9201016A BE1005927A3 (fr) | 1991-11-25 | 1992-11-24 | Procede de preparation de carbonates d'alcoyle. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI913141A IT1252070B (it) | 1991-11-25 | 1991-11-25 | Procedimento per la preparazione di carbonati alchilici |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITMI913141A0 ITMI913141A0 (it) | 1991-11-25 |
| ITMI913141A1 ITMI913141A1 (it) | 1993-05-25 |
| IT1252070B true IT1252070B (it) | 1995-05-29 |
Family
ID=11361179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITMI913141A IT1252070B (it) | 1991-11-25 | 1991-11-25 | Procedimento per la preparazione di carbonati alchilici |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE1005927A3 (it) |
| IT (1) | IT1252070B (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012076532A1 (en) * | 2010-12-08 | 2012-06-14 | Shell Internationale Research Maatschappij B.V. | Process for purifying aryl group containing carbonates |
| CN108440306B (zh) * | 2018-05-24 | 2023-11-03 | 柏川新材料科技(宁波)有限公司 | 一种四甲基碳酸铵的绿色生产的设备及方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978430A (en) * | 1986-12-06 | 1990-12-18 | Ube Industries, Ltd. | Method for dehydration and concentration of aqueous solution containing organic compound |
| US4960519A (en) * | 1989-10-16 | 1990-10-02 | Texaco Inc. | Membrane process for separation of organic liquids |
-
1991
- 1991-11-25 IT ITMI913141A patent/IT1252070B/it active IP Right Grant
-
1992
- 1992-11-24 BE BE9201016A patent/BE1005927A3/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI913141A0 (it) | 1991-11-25 |
| BE1005927A3 (fr) | 1994-03-15 |
| ITMI913141A1 (it) | 1993-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW349031B (en) | Process and system for separation and recovery of perfluorocompound gases | |
| KR890007774A (ko) | 에테르로부터 알콜을 분리하기 위한 투석증발 공정 | |
| MY133264A (en) | Process for the separation of acrylic acid | |
| TW349106B (en) | Production process for (poly)alkylene glycol monoalkyl ether | |
| ES8203317A1 (es) | Procedimiento para la separacion y desdoblamiento de los productos de reaccion resultantes en la eterificacion de isoofelinas inferiores con metanol en un reactor | |
| US4019965A (en) | Separation of phenol, cyclohexanone, and cyclohexylbenzene containing mixtures employing dialkyl and dicycloalkyl phthalates | |
| EA199600080A1 (ru) | Способ очистки ацетона | |
| IT1252070B (it) | Procedimento per la preparazione di carbonati alchilici | |
| ITMI911258A1 (it) | Procedimento continuo integrato per la produzione di dimetil carbonato e metil ter-butil etere | |
| US5567853A (en) | Purification of acetone | |
| KR920018002A (ko) | 아세트산 및 물을 함유하는 조성물로 부터 아세트산의 회수방법 | |
| AU1974600A (en) | Method for reprocessing reaction mixtures containing diaryl carbonate | |
| CA2158221A1 (en) | A process for the recovery of ethylene and propylene from a gaseous mixture | |
| KR930002288A (ko) | 아세틸렌의 카르보닐화를 위한 연속법 | |
| DE3461278D1 (en) | Process for the production of pyrocatechin and hydroquinone | |
| GB1568440A (en) | Method for processing a tar containing benzyl benzoate | |
| DE3164515D1 (en) | Distillative separation of carbon dioxide from light hydrocarbons | |
| DE59201658D1 (de) | Verfahren zur Abtrennung von Fluorchlorkohlenwasserstoffen aus Gasgemischen. | |
| JPS56131531A (en) | Preparation of secondary alcohol | |
| DK324685A (da) | Fremgangsmaade til fremstilling af rene fluoral-hydrater og rent hexafluoracetone-hydrat | |
| JPS5711933A (en) | Preparation of 2,6-xylenol | |
| JPS5692831A (en) | Recovering method of by-product acetic acid in preparation of methacrylic acid | |
| JPS5442391A (en) | Recovery of catalyst for hydroformylation of olefins | |
| JPS55130930A (en) | Recovery of dihydric phenol | |
| JPS567731A (en) | Separation of methyl acetate, methanol, and water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971113 |