GB1378385A - Purification of hydrocarbons - Google Patents
Purification of hydrocarbonsInfo
- Publication number
- GB1378385A GB1378385A GB5035571A GB5035571A GB1378385A GB 1378385 A GB1378385 A GB 1378385A GB 5035571 A GB5035571 A GB 5035571A GB 5035571 A GB5035571 A GB 5035571A GB 1378385 A GB1378385 A GB 1378385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butadiene
- hydrocarbons
- mixture
- produce
- distilling
- 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
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1378385 Butadiene IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Oct 1972 [29 Oct 1971] 50355/71 Heading C5E Butadiene is obtained by a process comprising (a) distilling a hydrocarbon stream to produce a C 4 -fraction containing C 3 and/or C 5 impurities; (b) extracting the C 4 -fraction with a selective solvent to produce an extract containing butadiene and at least part of C 3 and/or C 5 hydrocarbons; (c) distilling the extract to produce substantially pure butadiene and a mixture of butadiene with the C 3 and/or C 5 impurities; and (d) recycling the mixture of butadiene and C 3 and/or C 5 hydrocarbons to distillation stage (a). The first stage may comprise two stills, the first to remove most of the C 3 hydrocarbons and the second to remove most of the C 5 and C 5+ hydrocarbons. The solvent in (b) may be acetonitrile, DMF, dimethylacetamide, furfural or, preferably, NMP. A methyl-acetylene-butadiene mixture is obtained as overhead from (c) and may be partly recycled to (c) and partly recycled to (a).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5035571A GB1378385A (en) | 1971-10-29 | 1971-10-29 | Purification of hydrocarbons |
DE19722251051 DE2251051C3 (en) | 1971-10-29 | 1972-10-18 | Process for the production of butadiene |
AU47880/72A AU470759B2 (en) | 1971-10-29 | 1972-10-18 | Separation and purification of butadiene |
FR7238047A FR2158297B1 (en) | 1971-10-29 | 1972-10-26 | |
JP10803672A JPS5714325B2 (en) | 1971-10-29 | 1972-10-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5035571A GB1378385A (en) | 1971-10-29 | 1971-10-29 | Purification of hydrocarbons |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1378385A true GB1378385A (en) | 1974-12-27 |
Family
ID=10455623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5035571A Expired GB1378385A (en) | 1971-10-29 | 1971-10-29 | Purification of hydrocarbons |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5714325B2 (en) |
AU (1) | AU470759B2 (en) |
FR (1) | FR2158297B1 (en) |
GB (1) | GB1378385A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005788A1 (en) * | 1978-06-01 | 1979-12-12 | BASF Aktiengesellschaft | Process for obtaining butadiene-1,3 from a mixture of C4-hydrocarbons |
JP2015500254A (en) * | 2011-12-05 | 2015-01-05 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Process for preparing a steam-purified crude C4 fraction using a selective solvent as a feed stream for an extractive distillation process |
CN110198923A (en) * | 2017-01-25 | 2019-09-03 | 巴斯夫欧洲公司 | The method for obtaining pure 1,3- butadiene |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1926085A1 (en) * | 1969-05-22 | 1970-12-10 | Universal Oil Prod Co | Separation of butadiene from pyrolysis gas |
-
1971
- 1971-10-29 GB GB5035571A patent/GB1378385A/en not_active Expired
-
1972
- 1972-10-18 AU AU47880/72A patent/AU470759B2/en not_active Expired
- 1972-10-26 FR FR7238047A patent/FR2158297B1/fr not_active Expired
- 1972-10-30 JP JP10803672A patent/JPS5714325B2/ja not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005788A1 (en) * | 1978-06-01 | 1979-12-12 | BASF Aktiengesellschaft | Process for obtaining butadiene-1,3 from a mixture of C4-hydrocarbons |
JP2015500254A (en) * | 2011-12-05 | 2015-01-05 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Process for preparing a steam-purified crude C4 fraction using a selective solvent as a feed stream for an extractive distillation process |
CN110198923A (en) * | 2017-01-25 | 2019-09-03 | 巴斯夫欧洲公司 | The method for obtaining pure 1,3- butadiene |
CN110198923B (en) * | 2017-01-25 | 2022-07-22 | 巴斯夫欧洲公司 | Method for obtaining pure 1, 3-butadiene |
Also Published As
Publication number | Publication date |
---|---|
FR2158297B1 (en) | 1977-12-23 |
AU4788072A (en) | 1974-04-26 |
JPS4852705A (en) | 1973-07-24 |
DE2251051A1 (en) | 1973-10-18 |
FR2158297A1 (en) | 1973-06-15 |
JPS5714325B2 (en) | 1982-03-24 |
AU470759B2 (en) | 1976-03-25 |
DE2251051B2 (en) | 1976-08-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |