GB429720A - Improvements in and relating to the conduct of distillation under high vacuum - Google Patents
Improvements in and relating to the conduct of distillation under high vacuumInfo
- Publication number
- GB429720A GB429720A GB25099/34A GB2509934A GB429720A GB 429720 A GB429720 A GB 429720A GB 25099/34 A GB25099/34 A GB 25099/34A GB 2509934 A GB2509934 A GB 2509934A GB 429720 A GB429720 A GB 429720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- still
- vapours
- raschig rings
- vacuum
- condensate
- 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
Abstract
Substances, such as oils, resins, pitch, wax, wool grease, or fatty acids, are distilled under a pressure of 8mm. of mercury or less by causing them to trickle in layers of 1 mm. thickness or less over members of good heat conductivity, such as Raschig rings, which are heated to evaporating temperature, the vapours being passed directly to a refining treatment where part of the vapour is condensed and returns <PICT:0429720/III/1> to the still, thus washing the gas and carrying raw materials carried over back to the still. The liquid is preheated in a boiler 1 and then flows to the vacuum still 2 which is heated by a furnace 14 and is filled with Raschig rings. Unevaporated liquid flows from the still to tanks 4. The vapours flow to a refining cell 3 filled with Raschig rings in which partial condensation takes place and the raw materials are carried back to the still with the condensate. The vapours then pass through coolers 5 and 7, the condensate from each stage being collected in tanks 6 and 8 respectively. The whole apparatus is maintained at a low pressure by the vacuum pump 10. A refrigerating apparatus 11, 12 and 16 cools the vapours that pass to the pump 10 in order to improve the vacuum maintained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE429720X | 1933-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB429720A true GB429720A (en) | 1935-06-05 |
Family
ID=6477647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25099/34A Expired GB429720A (en) | 1933-09-16 | 1934-08-31 | Improvements in and relating to the conduct of distillation under high vacuum |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB429720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901906A (en) * | 2014-03-08 | 2014-07-02 | 哈尔滨工程大学 | Vacuum control device |
-
1934
- 1934-08-31 GB GB25099/34A patent/GB429720A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901906A (en) * | 2014-03-08 | 2014-07-02 | 哈尔滨工程大学 | Vacuum control device |
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