GB403402A - Improvements in or relating to the production of aliphatic ethers - Google Patents
Improvements in or relating to the production of aliphatic ethersInfo
- Publication number
- GB403402A GB403402A GB15294/32A GB1529432A GB403402A GB 403402 A GB403402 A GB 403402A GB 15294/32 A GB15294/32 A GB 15294/32A GB 1529432 A GB1529432 A GB 1529432A GB 403402 A GB403402 A GB 403402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- alcohol
- column
- vapour
- methanol
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
<PICT:0403402/IV/1> Ethers are produced by passing the vapours of the corresponding alcohol over a dehydrating catalyst and passing the reaction products preferably in vapour form, into a rectifying column in which the alcohol and water are condensed while the ether passes off as vapour and is separately condensed. Preferably the alcoholic condensate is treated in a second column to separate the alcohol which is returned to the process. The alcohol vapour may be preheated by heat exchange. The reaction temperature may be 175--500 DEG C. for methanol, and the pressure may be 15 atmospheres, but pressures up to 200 atmospheres may be used. The space velocity (at N.T.P.) may be 200--30000 per hour, but preferably about 5000. Suitable catalysts are alumina, partially hydrated alumina (obtained by heating the hydroxide at 300 DEG C.) partially hydrated titanium oxide, barium oxide, silica gel, basic aluminium sulphate, and aluminium phosphate. When methanol is employed, all apparatus with which it contacts prior to its conversion, should be composed of or lined with aluminium or other material which does not catalyze its decomposition to carbon monoxide. In the apparatus shown the liquid alcohol is supplied at 1 with recirculated alcohol from a pipe 30 and is passed through a pump 2 and pipe 3 to a heat exchanger 4 where it is vaporized by the heat of the reaction products which enter at 9 and leave at 10. The alcohol vapour then passes to a second preheater 6 which may be heated electrically to about the reaction temperature, and then by a pipe 7 to the reaction chamber 8. The reaction products pass by pipe 9, heat exchanger 4 and pipe 10 to a cooler 18 or its byepass 14 and thence by a pipe 17 to a distillation column 19 having heating coils 20. Ether passes off by a pipe 25 to a condenser 26 and is withdrawn at 27. The liquid effluent from the column 19 is passed by a pipe 21 to a column 22 from which the alcohol is returned via the pipe 30. The uncondensed vapours from the catalytic synthesis of methanol may be employed for this process, the preheaters then being unnecessary; the pressure is reduced to the desired extent before admitting to the reaction vessel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US403402XA | 1931-05-28 | 1931-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB403402A true GB403402A (en) | 1933-11-30 |
Family
ID=21910473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15294/32A Expired GB403402A (en) | 1931-05-28 | 1932-05-30 | Improvements in or relating to the production of aliphatic ethers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB403402A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2837572A (en) * | 1949-11-25 | 1958-06-03 | Ruhrchemie Ag | Production of aliphatic ethers |
EP0005287A1 (en) * | 1978-04-21 | 1979-11-14 | Shell Internationale Researchmaatschappij B.V. | A process for the preparation of an aromatic hydrocarbon mixture |
US4595785A (en) * | 1983-06-16 | 1986-06-17 | E. I. Dupont De Nemours And Company | Preparation of dimethyl ether by catalytic dehydration of methanol |
US4605788A (en) * | 1982-07-01 | 1986-08-12 | E. I. Du Pont De Nemours And Company | Catalytic preparation of dimethyl ether |
EP0333078A1 (en) * | 1988-03-14 | 1989-09-20 | Texaco Development Corporation | Method for one-step synthesis of methyl t-butyl ether |
EP0333077A1 (en) * | 1988-03-14 | 1989-09-20 | Texaco Development Corporation | Method for one-step synthesis of methyl t-butyl ether |
EP0341393A1 (en) * | 1988-03-14 | 1989-11-15 | Texaco Development Corporation | Method for the single step synthesis of methyl-tert.butyl ether from tert.butanol using supported rhenium catalysts |
US5037511A (en) * | 1988-05-04 | 1991-08-06 | Horst Dornhagen | Process for the production of pure dimethylether |
EP2072487A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to ethanol |
EP2072490A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to alcohols |
EP2072491A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of alcohol(s) into alcohol(s) with increased carbon-chain |
EP2072486A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to ethanol |
EP2072492A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to ethanol |
US9073837B2 (en) | 2006-12-08 | 2015-07-07 | Centre National De La Recherche Scientifique (C.N.R.S.) | Dehydration of methanol to dimethyl ether using catalysts based on a zeolite supported on silicon carbide |
-
1932
- 1932-05-30 GB GB15294/32A patent/GB403402A/en not_active Expired
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2837572A (en) * | 1949-11-25 | 1958-06-03 | Ruhrchemie Ag | Production of aliphatic ethers |
EP0005287A1 (en) * | 1978-04-21 | 1979-11-14 | Shell Internationale Researchmaatschappij B.V. | A process for the preparation of an aromatic hydrocarbon mixture |
US4605788A (en) * | 1982-07-01 | 1986-08-12 | E. I. Du Pont De Nemours And Company | Catalytic preparation of dimethyl ether |
US4595785A (en) * | 1983-06-16 | 1986-06-17 | E. I. Dupont De Nemours And Company | Preparation of dimethyl ether by catalytic dehydration of methanol |
EP0341393A1 (en) * | 1988-03-14 | 1989-11-15 | Texaco Development Corporation | Method for the single step synthesis of methyl-tert.butyl ether from tert.butanol using supported rhenium catalysts |
EP0333077A1 (en) * | 1988-03-14 | 1989-09-20 | Texaco Development Corporation | Method for one-step synthesis of methyl t-butyl ether |
EP0333078A1 (en) * | 1988-03-14 | 1989-09-20 | Texaco Development Corporation | Method for one-step synthesis of methyl t-butyl ether |
US5037511A (en) * | 1988-05-04 | 1991-08-06 | Horst Dornhagen | Process for the production of pure dimethylether |
US9073837B2 (en) | 2006-12-08 | 2015-07-07 | Centre National De La Recherche Scientifique (C.N.R.S.) | Dehydration of methanol to dimethyl ether using catalysts based on a zeolite supported on silicon carbide |
EP2072487A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to ethanol |
EP2072490A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to alcohols |
EP2072491A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of alcohol(s) into alcohol(s) with increased carbon-chain |
EP2072486A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to ethanol |
EP2072492A1 (en) | 2007-12-17 | 2009-06-24 | BP p.l.c. | Process for the conversion of hydrocarbons to ethanol |
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