GB897981A - Improvements relating to the purification of benzine - Google Patents
Improvements relating to the purification of benzineInfo
- Publication number
- GB897981A GB897981A GB26499/58A GB2649958A GB897981A GB 897981 A GB897981 A GB 897981A GB 26499/58 A GB26499/58 A GB 26499/58A GB 2649958 A GB2649958 A GB 2649958A GB 897981 A GB897981 A GB 897981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- benzene
- crystallisation
- benzole
- crystallising
- crystals
- 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
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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
Benzene is benzole is purified by crystallising a major proportion of the benzene, separating the crystals, partly thawing by washing with an aqueous liquid and returning the thawed benzene after separation to the crystallisation. The benzole may have been hydrofined or acid washed to remove thiophene and lower and higher boiling materials may have been separated by distillation. The crystallisation mother liquors may be distilled to separate a benzene fraction which is also returned to the crystallisation. The crystallisation is preferably effected by mixing with a cold, immiscible liquid, e.g. aqueous calcium chloride solution, and causing the mixture to flow with turbulence. The Provisional Specification also refers to crystallising at least 75% of the benzene and thawing 10%-50% of the crystals and also to the separation of p-xylene from xylole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26499/58A GB897981A (en) | 1958-08-18 | 1958-08-18 | Improvements relating to the purification of benzine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26499/58A GB897981A (en) | 1958-08-18 | 1958-08-18 | Improvements relating to the purification of benzine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB897981A true GB897981A (en) | 1962-06-06 |
Family
ID=10244621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26499/58A Expired GB897981A (en) | 1958-08-18 | 1958-08-18 | Improvements relating to the purification of benzine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB897981A (en) |
-
1958
- 1958-08-18 GB GB26499/58A patent/GB897981A/en not_active Expired
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