GB715465A - Improvements in or relating to catalytic conversion of oxygenated organic compound mixtures - Google Patents
Improvements in or relating to catalytic conversion of oxygenated organic compound mixturesInfo
- Publication number
- GB715465A GB715465A GB13713/50A GB1371350A GB715465A GB 715465 A GB715465 A GB 715465A GB 13713/50 A GB13713/50 A GB 13713/50A GB 1371350 A GB1371350 A GB 1371350A GB 715465 A GB715465 A GB 715465A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohols
- ketones
- hydrogen
- catalyst
- aldehydes
- 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
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/41—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrogenolysis or reduction of carboxylic groups or functional derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The proportion of alcohols and/or ketones in a dilute aqueous mixture thereof with aldehydes and acids, which mixture has been separated from the reaction products obtained in the catalytic synthesis of hydrocarbons from carbon monoxide and hydrogen, is increased by contacting with a catalyst of the same composition as that used in said hydrocarbon synthesis, in the presence of hydrogen, at about 15-100 p.s.i. and 125-175 DEG C. where an increase in ketones is desired or at 200 p.s.i. and above at 125-360 DEG C. where an increase in alcohols is desired. The feed should in general contain at least 5 per cent of the oxygenated compounds and 5 per cent water. The aqueous phase of the synthesis product which may be mixed with oxygenated compounds from the oil phase is a suitable feed. Vapour or liquid phase operation may be employed with fixed or fluidized catalysts. At low temperatures, 125-175 DEG C., and 200-600 p.s.i. or above, using 1 vol. H2 to 1 vol. feed, the alcohol content is increased at the expense of the aldehydes. At low temperatures and pressures, 125-175 DEG C. and 15-100 p.s.i., the ketone content is increased at the expense of alcohols, aldehydes, and acids. At high temperatures and pressures, 285-350 DEG C. and 200-600 p.s.i. or above, both alcohols and ketones are increased. The aqueous layer from a synthesis product is mixed with hydrogen in a saturator at from about 80 DEG C. at 15 p.s.i. to 212 DEG C. at 530 p.s.i. to give a vaporous mixture of about 50 per cent by weight of each. It is then reacted, using mill scale in fluidized form as catalyst, and an aqueous fraction separated which is fractionated to recover alcohols or ketones while the remainder is mixed with the original feed. In examples: (1) an aqueous phase from a hydrocarbon synthesis using a fluidized iron catalyst is treated with a similar catalyst and an equal volume of hydrogen at 150 DEG C. and 15 p.s.i. to give an increase in ketones, particularly acetone; (2) treatment is effected using a fixed catalyst in a batch operation at 125 DEG C. and 450 p.s.i. with a gain in ethanol; (3) treatment as in (1) but at 315 DEG C. and 450 p.s.i. gives a gain in ethanol and acetone; (4) treatment as in (1) but with a 4 : 1 ratio of hydrogen and at 315 DEG C. and 550 p.s.i. shows a gain in ethanol and acetone; (5) an aqueous mixture of acetic and higher fatty acids is treated at 315 DEG C. and 400 p.s.i., illustrating the conversion of acids to aldehydes and alcohols.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US715465XA | 1949-06-29 | 1949-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB715465A true GB715465A (en) | 1954-09-15 |
Family
ID=22102023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13713/50A Expired GB715465A (en) | 1949-06-29 | 1950-06-01 | Improvements in or relating to catalytic conversion of oxygenated organic compound mixtures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB715465A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4478955A (en) * | 1981-12-21 | 1984-10-23 | The Standard Oil Company | Upgrading synthesis gas |
-
1950
- 1950-06-01 GB GB13713/50A patent/GB715465A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4478955A (en) * | 1981-12-21 | 1984-10-23 | The Standard Oil Company | Upgrading synthesis gas |
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