GB815091A - Improvements in and relating to the separation of alcohols - Google Patents
Improvements in and relating to the separation of alcoholsInfo
- Publication number
- GB815091A GB815091A GB23681/55A GB2368155A GB815091A GB 815091 A GB815091 A GB 815091A GB 23681/55 A GB23681/55 A GB 23681/55A GB 2368155 A GB2368155 A GB 2368155A GB 815091 A GB815091 A GB 815091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bottoms
- overhead
- alcohols
- product
- fraction
- 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
- 150000001298 alcohols Chemical class 0.000 title abstract 7
- 238000000926 separation method Methods 0.000 title 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 2
- 238000005810 carbonylation reaction Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 238000010992 reflux Methods 0.000 abstract 2
- 239000005977 Ethylene Substances 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 238000010533 azeotropic distillation Methods 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propanol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 abstract 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N triclene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract 1
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
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aliphatic C3-C5 monoalcohols are obtained from the crude hydrogenated carbonylation product of a C2-C4 olefine, which product contains the alcohols together with other oxygenated compounds and a high boiling burden oil, by distilling at atmospheric or reduced pressure, removing overhead a fraction containing a high proportion of the alcohols and as bottoms the burden oil, and the overhead fraction is distilled at atmospheric pressure in the presence of a proportion of steam not exceeding 10 per cent by weight of the feedstock to this step, the feedstock being introduced at an intermediate point and preferably at least some of the steam below this point and at or near the bottom of the column, removing overhead an aqueous mixture having an organic content of not more than 30 per cent by weight of the organic content of the feed to the column and containing at least some of the desired alcohols which may be dry. The bottoms from the first step may be further distilled under reduced pressure removing as bottoms a burden oil which is used as a solvent and diluent in the carbonylation process and overhead a fraction to be discarded containing a small amount of intermediate heavy ends and desired alcohols. When ethylene is carbonylated the product comprises substantially n-propanol and the bottoms from the second step may be further purified and dried by azeotropic distillation adding benzene or trichlorethylene as entrainer. Isobutylene yields 3-methyl-butanol-1 and the bottoms from the second step may be dried by straightforward distillation taking an aqueous azeotrope overhead, from which after condensation the upper layer is returned as reflux. Starting with propylene or n-butenes-1 and -2 a mixture is obtained and the bottoms from the second step are distilled taking an aqueous azeotrope overhead to dry the alcohols, the upper layer of the condensed overhead being returned as reflux, and the bottoms product is fractionated to recover the separate alcohols.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB815091A true GB815091A (en) | 1959-06-17 |
Family
ID=1737847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23681/55A Expired GB815091A (en) | 1955-08-17 | Improvements in and relating to the separation of alcohols |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB815091A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012078728A1 (en) * | 2010-12-10 | 2012-06-14 | Dow Global Technologies Llc | Apparatus and process for using olefin as an azeotropic entrainer for isolating 1,3-dichloro-2-propanol from a 2,2'-oxybis (1-chloropropane) waste stream |
| US9192877B2 (en) | 2010-12-10 | 2015-11-24 | Angus Chemical Company | Apparatus and process for using a nitroalkane as an entrainer for azeotropic removal of water from aqueous acid solution |
-
1955
- 1955-08-17 GB GB23681/55A patent/GB815091A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012078728A1 (en) * | 2010-12-10 | 2012-06-14 | Dow Global Technologies Llc | Apparatus and process for using olefin as an azeotropic entrainer for isolating 1,3-dichloro-2-propanol from a 2,2'-oxybis (1-chloropropane) waste stream |
| CN103261136A (en) * | 2010-12-10 | 2013-08-21 | 陶氏环球技术有限责任公司 | Apparatus and process for using olefin as an azeotropic entrainer for isolating 1,3-ichloro-2-propanol from a 2,2'-oxybis (1-chloropropane) waste stream |
| US9180384B2 (en) | 2010-12-10 | 2015-11-10 | Dow Global Technologies Llc | Apparatus and process for using olefin as an azeotropic entrainer for isolating 1,3-DICHLORO-2-propanol from a 2,2′-oxybis (1-chloropropane) waste stream |
| US9192877B2 (en) | 2010-12-10 | 2015-11-24 | Angus Chemical Company | Apparatus and process for using a nitroalkane as an entrainer for azeotropic removal of water from aqueous acid solution |
| CN103261136B (en) * | 2010-12-10 | 2016-05-25 | 陶氏环球技术有限责任公司 | Utilize alkene from dichloro isopropyl ether waste stream, to separate equipment and the method for the chloro-2-propyl alcohol of 1,3-bis-as entrainer |
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