GB446614A - Improvements in the manufacture of aliphatic alcohols - Google Patents
Improvements in the manufacture of aliphatic alcoholsInfo
- Publication number
- GB446614A GB446614A GB20370/35A GB2037035A GB446614A GB 446614 A GB446614 A GB 446614A GB 20370/35 A GB20370/35 A GB 20370/35A GB 2037035 A GB2037035 A GB 2037035A GB 446614 A GB446614 A GB 446614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- ethylene
- absorption
- alcohol
- still
- 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
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/03—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
- C07C29/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/03—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
- C07C29/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
- C07C29/05—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds with formation of absorption products in mineral acids and their hydrolysis
- C07C29/06—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds with formation of absorption products in mineral acids and their hydrolysis the acid being sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0446614/IV/1> Alcohols are produced from ethylene or propylene by absorption in sulphuric acid, under suitable conditions so as to obtain an acid reaction mixture containing a substantial proportion of dialkyl sulphate, distilling off the dialkyl sulphate under reduced pressure, such as 20 mm. and hydrolyzing the dialkyl sulphate, the dilute acid remaining after the separation of the alcohol being capable of reconcentration without loss as it is free from carbon. The absorption of ethylene may be effected with sulphuric acid of 95--96 per cent at 70--80 DEG C. under pressure such as 300 lbs. When in the course of the process carbonaceous materials accumulate in the reaction liquor, it may be diluted and hydrolyzed in the usual manner and the alcohol distilled off; a large proportion of the carbonaceous materials can then be mechanically separated for instance by a sand filter before reconcentrating the acid. Preferably, the absorption of ethylene is stopped when about 1,5 molecules have been absorbed per molecule of sulphuric acid, using 96 per cent acid at 80 DEG C.; with 98--100 per cent acid the amount absorbed may be 1,75--1,8 molecules. In an example, ethylene is absorbed in sulphuric acid in an absorber 4, the gas entering at 6. The absorption liquor is taken through a pipe 9 to a tower or chamber 11 to allow dissolved gas to escape by a pipe 12; the liquor then passes to a vacuum still 15 of suitable type, the diethyl sulphate vapour being condensed at 18 and led to a hydrolyzer 35, alcohol being separated in a still 31. The residual acid from the still 15 may be led back to the absorber 4 or passed to a hydrolyzer 26, the alcohol being distilled off in the still 31. Specifications 157,578, 175,077, and 336,681, [all in Class 2 (iii)], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US446614XA | 1934-10-09 | 1934-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB446614A true GB446614A (en) | 1936-05-04 |
Family
ID=21933608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20370/35A Expired GB446614A (en) | 1934-10-09 | 1935-07-17 | Improvements in the manufacture of aliphatic alcohols |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB446614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE895288C (en) * | 1945-12-31 | 1953-11-02 | Standard Oil Dev Co | Process for the production of ethyl alcohol from hydrocarbon mixtures containing ethylene |
| US9694317B2 (en) | 2012-05-03 | 2017-07-04 | Altira Technology Fund V L.P. | Multi-pollutant abatement device and method |
-
1935
- 1935-07-17 GB GB20370/35A patent/GB446614A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE895288C (en) * | 1945-12-31 | 1953-11-02 | Standard Oil Dev Co | Process for the production of ethyl alcohol from hydrocarbon mixtures containing ethylene |
| US9694317B2 (en) | 2012-05-03 | 2017-07-04 | Altira Technology Fund V L.P. | Multi-pollutant abatement device and method |
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