GB1020657A - Improvements relating to solvent extraction - Google Patents
Improvements relating to solvent extractionInfo
- Publication number
- GB1020657A GB1020657A GB4280364A GB4280364A GB1020657A GB 1020657 A GB1020657 A GB 1020657A GB 4280364 A GB4280364 A GB 4280364A GB 4280364 A GB4280364 A GB 4280364A GB 1020657 A GB1020657 A GB 1020657A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stages
- solvent
- extraction
- regeneration
- main
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
Phenols and cresols are extracted from carbolic acid obtained from coal tar distillation by passing the latter in series through a plurality of main extraction stages (E1, E2, E3 . . . En) in each of which it is extracted by an aqueous solution of sodium salts of tar acids in a mixer-settler, and passing toluene in series through a plurality of main regeneration mixer-settler stages (R1, R2, R3 . . . Rn) in each of which it is employed to extract the phenols and cresols from the aqueous solvent separated from respective stages En, Rn-1, En-2 . . . E1 which is thereafter recycled to its respective main extraction stage. Fig. 5 (not shown) illustrates a system containing 5 extraction-regeneration cycles in which each cycle employs a different first solvent. Fig. 6 (not shown) illustrates a system in which each extraction-regeneration cycle comprises intermediate extraction stages.ALSO:A component is extracted from a liquid feed-stock by passing the feedstock in series through a plurality of main extraction stages (E1, E2, E3 . . . En) in each of which it is extracted by a first solvent in a mixer-settler, and passing a second solvent through a plurality of main regeneration mixer-settler stages (R1, R2, R3 . . . Rn) in each of which it is employed to extract the component from the first solvent separated from respective stages En, En-1, En-2 . . . E1 which is thereafter recycled to its respective main extraction stage. The second solvent may pass in series through all the main regeneration stages but may if desired be withdrawn after a number of main regeneration stages and a second stream of the same or a different second solvent introduced into the remainder of the main regeneration stages. Fig. 5 (not shown) illustrates a system containing 5 extraction-regeneration cycles in which each cycle employs a different first solvent. Fig. 6 (not shown) illustrates a system in which each extraction-regeneration cycle comprises intermediate extraction stages. The invention may be applied to the extraction of phenols from carbolic oil obtained from coal tar distillation using as first solvent aqueous solutions of sodium salts of tar acids of various concentrations and as second solvent, toluene, and to the separation of paraffins and aromatics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4280364A GB1020657A (en) | 1964-10-20 | 1964-10-20 | Improvements relating to solvent extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4280364A GB1020657A (en) | 1964-10-20 | 1964-10-20 | Improvements relating to solvent extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1020657A true GB1020657A (en) | 1966-02-23 |
Family
ID=10426038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4280364A Expired GB1020657A (en) | 1964-10-20 | 1964-10-20 | Improvements relating to solvent extraction |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1020657A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2399265A1 (en) * | 1977-08-06 | 1979-03-02 | Dej Int Research Co Bv | PROCESS FOR THE SELECTIVE EXTRACTION OF A SOLUBLE CONSTITUENT FROM A SOLID IN PARTICLES WITH MULTIPLE SOLUBLE CONSTITUENTS |
| WO2002032536A1 (en) * | 2000-10-17 | 2002-04-25 | Proscon Systems Limited | A modular mass transfer and phase separation system |
| CN106566571A (en) * | 2016-11-07 | 2017-04-19 | 山东科技大学 | Coal tar complexation method dephenolization device |
-
1964
- 1964-10-20 GB GB4280364A patent/GB1020657A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2399265A1 (en) * | 1977-08-06 | 1979-03-02 | Dej Int Research Co Bv | PROCESS FOR THE SELECTIVE EXTRACTION OF A SOLUBLE CONSTITUENT FROM A SOLID IN PARTICLES WITH MULTIPLE SOLUBLE CONSTITUENTS |
| WO2002032536A1 (en) * | 2000-10-17 | 2002-04-25 | Proscon Systems Limited | A modular mass transfer and phase separation system |
| CN106566571A (en) * | 2016-11-07 | 2017-04-19 | 山东科技大学 | Coal tar complexation method dephenolization device |
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