GB620653A - Improvements in vacuum dehydration - Google Patents
Improvements in vacuum dehydrationInfo
- Publication number
- GB620653A GB620653A GB8789/48A GB878948A GB620653A GB 620653 A GB620653 A GB 620653A GB 8789/48 A GB8789/48 A GB 8789/48A GB 878948 A GB878948 A GB 878948A GB 620653 A GB620653 A GB 620653A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- chamber
- coils
- water
- conduit
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
<PICT:0620653/III/1> Materials are dehydrated by exposing the material to a vacuum, vaporizing in a separate chamber a solvent which is completely miscible with water and has the property of reducing the freezing point of water, introducing water vapour from the material undergoing dehydration and the vaporized solvent simultaneously into a condensing chamber so as to form a liquid mixture, and then withdrawing this mixture from the system. Methyl, ethyl, isopropyl alcohol or acetone may be used as the solvent. The material is introduced into trays 16 in chamber 10 which is connected by conduit 90 to condensing chamber 60. The latter is also connected by conduit 92 to container 96 which contains the solvent. The system is evacuated by pump 70. Each tray is heated by circulating hot fluid through coils 18; refrigerating fluid is passed through coils 62, and valve 94 is opened. Water vapour from chamber 10 and solvent vapour from container 96 are simultaneously drawn into condensing chamber 60 where they condense as a low-freezing liquid mixture on coils 62. The condensate drops into funnel 72 and is withdrawn from the system by pump 76.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US620653XA | 1944-10-18 | 1944-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB620653A true GB620653A (en) | 1949-03-28 |
Family
ID=22039989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8789/48A Expired GB620653A (en) | 1944-10-18 | 1945-10-09 | Improvements in vacuum dehydration |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB620653A (en) |
-
1945
- 1945-10-09 GB GB8789/48A patent/GB620653A/en not_active Expired
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