GB821983A - Vacuum distillation process - Google Patents
Vacuum distillation processInfo
- Publication number
- GB821983A GB821983A GB2700357A GB2700357A GB821983A GB 821983 A GB821983 A GB 821983A GB 2700357 A GB2700357 A GB 2700357A GB 2700357 A GB2700357 A GB 2700357A GB 821983 A GB821983 A GB 821983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- solvent
- liquid
- pump
- distillation
- 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
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
- B01D3/105—Vacuum distillation with the use of an ejector for creating the vacuum, the ejector being placed between evaporator or distillation devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
<PICT:0821983/III/1> In a process for the vacuum distillation of water-sensitive liquid mixtures, a component of the mixture is used as operating agent for the vacuum pump. Preferably, the whole or part of the component used in the vacuum producing device is returned to the distillation cycle. In an embodiment using a liquid ring pump the mixture of water-sensitive substance and solvent such as o-dichlorobenzene is fed through a pipe 1 into an intermediate container 2 and then to a distillation device 4 from which the water-sensitive substance is extracted through a pipe 22. The solvent passes to a condenser 6 in which the majority of the solvent separates out, some passing to container 8 and some being recirculated to the distillation device 4 by way of pipe 9. The uncondensed gases and vapours are taken to a liquid-ring gas pump by way of a pipe 10, the operating solvent being provided from container 8, through a pipe 17, a pump and a condenser which is cooled by brine admitted through a pipe. The operating liquid and gases are discharged from the pump through a pipe into a separator, waste gases leaving by a pipe 16 and the liquid being returned through pipe 15 to the solvent circulation of the process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF21110A DE1027182B (en) | 1956-08-27 | 1956-08-27 | Process for vacuum distillation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB821983A true GB821983A (en) | 1959-10-14 |
Family
ID=7089933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2700357A Expired GB821983A (en) | 1956-08-27 | 1957-08-27 | Vacuum distillation process |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1027182B (en) |
| GB (1) | GB821983A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3160582A (en) * | 1961-08-11 | 1964-12-08 | Phillips Petroleum Co | Combined stripping and flashing operation |
| EP0921870A1 (en) * | 1995-02-24 | 1999-06-16 | Mansur Industries, Inc. | Improved general parts washer |
| CN104689587A (en) * | 2015-03-13 | 2015-06-10 | 安徽八一化工股份有限公司 | Liquid ring type vacuum pump system for chlorinated benzene vacuum rectification |
| WO2017172348A1 (en) * | 2016-03-30 | 2017-10-05 | Veolia Water Technologies, Inc. | System and process for preheating evaporator feedwater |
-
1956
- 1956-08-27 DE DEF21110A patent/DE1027182B/en active Pending
-
1957
- 1957-08-27 GB GB2700357A patent/GB821983A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3160582A (en) * | 1961-08-11 | 1964-12-08 | Phillips Petroleum Co | Combined stripping and flashing operation |
| EP0921870A1 (en) * | 1995-02-24 | 1999-06-16 | Mansur Industries, Inc. | Improved general parts washer |
| EP0921870A4 (en) * | 1995-02-24 | 2004-08-25 | Mansur Ind Inc | Improved general parts washer |
| CN104689587A (en) * | 2015-03-13 | 2015-06-10 | 安徽八一化工股份有限公司 | Liquid ring type vacuum pump system for chlorinated benzene vacuum rectification |
| WO2017172348A1 (en) * | 2016-03-30 | 2017-10-05 | Veolia Water Technologies, Inc. | System and process for preheating evaporator feedwater |
| US10434435B2 (en) | 2016-03-30 | 2019-10-08 | Veolia Water Technologies, Inc. | System and process for preheating evaporator feedwater |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1027182B (en) | 1958-04-03 |
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