GB869990A - Apparatus for distilling under high vacuum - Google Patents
Apparatus for distilling under high vacuumInfo
- Publication number
- GB869990A GB869990A GB14326/58A GB1432658A GB869990A GB 869990 A GB869990 A GB 869990A GB 14326/58 A GB14326/58 A GB 14326/58A GB 1432658 A GB1432658 A GB 1432658A GB 869990 A GB869990 A GB 869990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensation
- evaporation
- pict
- evaporation surface
- distilland
- 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
- 238000001704 evaporation Methods 0.000 abstract 8
- 230000008020 evaporation Effects 0.000 abstract 8
- 238000009833 condensation Methods 0.000 abstract 6
- 230000005494 condensation Effects 0.000 abstract 6
- 239000002826 coolant Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000011796 hollow space material Substances 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 1
- 238000004508 fractional distillation Methods 0.000 abstract 1
- 238000000199 molecular distillation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- B01D3/12—Molecular distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Apparatus for effecting distillation under <PICT:0869990/III/1> <PICT:0869990/III/2> <PICT:0869990/III/3> <PICT:0869990/III/4> vacuum (e.g. 10-2 mm. Hg. and below) comprises a rotatable evaporation surface, formed by the inner surface of a rotatable, substantially horizontal, hollow cylinder or truncated cone, enclosing a hollow space and a condensation surface arranged therein; a distilland reservoir within the hollow space and bounded by a portion of the evaporation surface so that during each complete revolution the entire evaporation surface is freshly wetted in the reservoir and passes the condensation surface; and means for the removal of distillate condensed on the condensation surface. Referring to Fig. 2 which is a sectional view along the horizontal axis, casing 1 encloses a rotatable cylinder 5, the interior face of which constitutes evaporation surface 10, heated by heating element 16. Condensation surface 20 is internally cooled by a cooling medium, e.g. water, introduced via line 22. Distillate condensed on the surface 20 collects in troughs 26 and is removed by line 28. The distilland reservoir is designated 14. The apparatus may be used for fractional distillation by heating various bands of the evaporation surface to different temperatures and providing separate condensation surfaces and collecting means for each. Two such bands are shown in the sectional view provided by Fig. 1 which also shows the means 4 for rotating the evaporation surface, distilland inlet 13, cooling medium discharge line 24 and vacuum line 3. Figs. 3 and 4 illustrate skimmer members which may be used to restrain the distilland and distribute it evenly over the evaporation surface, the disposition thereof in Fig. 4 being appropriate to a high speed of rotation, e.g. 5,000 r.p.m. The apparatus is particularly suitable for molecular distillation, wherein the distance between the evaporation and condensation surfaces is less than the mean free path of the vapour molecules.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH869990X | 1957-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869990A true GB869990A (en) | 1961-06-07 |
Family
ID=4543928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14326/58A Expired GB869990A (en) | 1957-05-15 | 1958-05-05 | Apparatus for distilling under high vacuum |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH350637A (en) |
| DE (1) | DE1066994B (en) |
| FR (1) | FR1206067A (en) |
| GB (1) | GB869990A (en) |
| NL (2) | NL217388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5536374A (en) * | 1993-10-14 | 1996-07-16 | Buchi Labortechnik Ag | Evaporator flask for a rotary evaporator |
-
0
- DE DENDAT1066994D patent/DE1066994B/en active Pending
- NL NL96388D patent/NL96388C/xx active
- NL NL217388D patent/NL217388A/xx unknown
-
1957
- 1957-05-15 CH CH350637D patent/CH350637A/en unknown
-
1958
- 1958-05-05 GB GB14326/58A patent/GB869990A/en not_active Expired
- 1958-05-05 FR FR1206067D patent/FR1206067A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5536374A (en) * | 1993-10-14 | 1996-07-16 | Buchi Labortechnik Ag | Evaporator flask for a rotary evaporator |
| US5759356A (en) * | 1993-10-14 | 1998-06-02 | Buchi Labortechnik Ag | Evaporator flask for a rotary evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| NL217388A (en) | |
| CH350637A (en) | 1960-12-15 |
| DE1066994B (en) | 1959-10-15 |
| FR1206067A (en) | 1960-02-08 |
| NL96388C (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2210927A (en) | Vacuum distillation process | |
| BE857274A (en) | PROCESS FOR CONDENSING VAPORS FROM VOLATILE LIQUIDS | |
| SE8006723L (en) | SET AND APPARATUS FOR SEPARATION OF AN ORGANIC LIQUID FROM A MIXTURE OF ORGANIC LIQUID AND SOLVENTS | |
| US2427142A (en) | Still head condenser | |
| GB744844A (en) | Improvements relating to distillation apparatus | |
| GB923889A (en) | Construction and arrangement of wipers in thin-film evaporators | |
| JPS58128102A (en) | Centrifugal type mass transfer apparatus | |
| GB1024572A (en) | Apparatus for condensing vapor on ice | |
| US2218240A (en) | Vacuum distillation | |
| GB530371A (en) | Improvements in high vacuum unobstructed path distillation | |
| GB869990A (en) | Apparatus for distilling under high vacuum | |
| US2313546A (en) | Distillation apparatus | |
| US2890155A (en) | Method and apparatus for the fractional distillation of multicomponent mixtures | |
| US3111461A (en) | Process and apparatus for separating a vaporizable mixture | |
| GB596392A (en) | Improvements in high vacuum unobstructed path fractionating process and apparatus | |
| US2298377A (en) | Vacuum distillation from moving surfaces and apparatus therefor | |
| US3060106A (en) | Apparatus for vacuum fractional distillation | |
| US3075891A (en) | Apparatus for the distillation of a liquid through a gas permeable wall | |
| US2602825A (en) | Sublimation process and apparatus | |
| US2554703A (en) | Vacuum still | |
| GB614388A (en) | Improvements relating to fractional distillation | |
| GB1181487A (en) | Apparatus for Vacuum and Short-Path Vacuum Distillation. | |
| US2383945A (en) | Vacuum distillation process and apparatus | |
| US3507752A (en) | Apparatus for heat-treating liquids | |
| Parrett et al. | Purification of nitromethane by crystallization |