GB748870A - Improvements in or relating to short-path fractional distillation - Google Patents
Improvements in or relating to short-path fractional distillationInfo
- Publication number
- GB748870A GB748870A GB23980/52A GB2398052A GB748870A GB 748870 A GB748870 A GB 748870A GB 23980/52 A GB23980/52 A GB 23980/52A GB 2398052 A GB2398052 A GB 2398052A GB 748870 A GB748870 A GB 748870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trough
- tube
- pict
- iii
- flow
- 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
-
- 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
- B01D3/12—Molecular distillation
-
- 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
- B01D3/42—Regulation; Control
- B01D3/4205—Reflux ratio control splitter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
<PICT:0748870/III/1> <PICT:0748870/III/2> <PICT:0748870/III/3> In the short-path fractional distillation of liquid mixtures, the mixture is made to flow slowly as a thin film over a troughshaped vaporization surface disposed at an angle slightly inclined to the horizontal, and a temperature gradient is applied to the film so as to effect the simultaneous distillation of different fractions of the mixture, which are then condensed on individual cooling surfaces and collected in separate receivers. Distillation chamber 1 (Figs. 1 and 2), which is evacuated through connection 10, contains a trough 2 which is heated by oil circulation system 21. Distilland from storage vessel 9 (Fig. 3) flows into trough 2 through capillary tube 8 and ground-in joint 7. Storage vessel 9 is also connected to chamber 1 by tube 16 which is provided with a three-way cock 17 equipped with a needle valve for adjustment of a minimum overpressure above the distilland in vessel 9. Arranged around trough 2 is condenser 3 which is cooled by cooling liquid flowing in through tube 23 and leaving through tube 24. The condenser is provided with three pairs of flow-off points 4, 5, 6 which deliver three distillate-fractions to receivers 12, 13 and 14. Non-distilled liquid leaves the trough 2 from flow-off point 18, and is collected in receiver 15.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH748870X | 1951-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB748870A true GB748870A (en) | 1956-05-16 |
Family
ID=4533688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23980/52A Expired GB748870A (en) | 1951-09-25 | 1952-09-24 | Improvements in or relating to short-path fractional distillation |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH305408A (en) |
| GB (1) | GB748870A (en) |
-
1951
- 1951-09-25 CH CH305408D patent/CH305408A/en unknown
-
1952
- 1952-09-24 GB GB23980/52A patent/GB748870A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH305408A (en) | 1955-02-28 |
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