GB879467A - Improvements in methods of isotope concentration - Google Patents
Improvements in methods of isotope concentrationInfo
- Publication number
- GB879467A GB879467A GB2070/58A GB207058A GB879467A GB 879467 A GB879467 A GB 879467A GB 2070/58 A GB2070/58 A GB 2070/58A GB 207058 A GB207058 A GB 207058A GB 879467 A GB879467 A GB 879467A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- column
- columns
- substance
- principal substance
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B4/00—Hydrogen isotopes; Inorganic compounds thereof prepared by isotope exchange, e.g. NH3 + D2 → NH2D + HD
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/28—Separation by chemical exchange
- B01D59/32—Separation by chemical exchange by exchange between fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
- B26F1/34—Hand-held perforating or punching apparatus, e.g. awls power actuated
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B5/00—Water
- C01B5/02—Heavy water; Preparation by chemical reaction of hydrogen isotopes or their compounds, e.g. 4ND3 + 7O2 ---> 4NO2 + 6D2O, 2D2 + O2 ---> 2D2O
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In a process for preparing a substance enriched in deuterium by exchange of D between the principal substance to be enriched and an auxiliary substance in a different phase, both substances containing D, in a cascade system of interconnected stages, each comprising two exchange columns at different temperatures through each of which the two substances flow in countercurrent and intermingle so that the principal substance is enriched in one column and impoverished in the other, and the auxiliary substance is circulated in a closed cycle through each stage, or is advanced from stage to stage by withdrawing a portion from between the columns of a stage for passage to a succeeding stage and returning the residue to the stage from which the portion is withdrawn, the principal substance withdrawn from the enriching column of each stage except the last is divided into two portions, one being fed to the enriching column and the other to the impoverishing column af the next succeeding stage, the principal substance withdrawn from the impoverishing column of each stage except the first is fed to the impoverishing column of the next preceding stage, the enriched principal substance is recovered from the enriching column of the last stage as product, the principal substance fed to the first stage is divided between the two columns thereof, and the principal substance from the impoverishing column of the first stage passes to waste. The process is described in the production of heavy water by D exchange between H2O and H2S in hot and cold columns operating at 160 DEG C. and 30 DEG C. respectively under 20 kg/cm2. The water from each cold column is divided between the cold and hot columns of a preceding stage and partly from the hot column of the succeeding stage. The H2S is passed as a closed cycle in each stage (Fig. 2 not shown) or is advanced to, and returned from, each stage from between the columns of the preceding stage (Fig. 3 not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1165257T | 1957-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB879467A true GB879467A (en) | 1961-10-11 |
Family
ID=37420928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2070/58A Expired GB879467A (en) | 1957-01-23 | 1958-01-21 | Improvements in methods of isotope concentration |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE564177A (en) |
| CH (1) | CH348956A (en) |
| DE (1) | DE1206398B (en) |
| FR (1) | FR1165257A (en) |
| GB (1) | GB879467A (en) |
| LU (1) | LU35704A1 (en) |
| NL (2) | NL123475C (en) |
-
0
- BE BE564177D patent/BE564177A/xx unknown
- NL NL224259D patent/NL224259A/xx unknown
- NL NL123475D patent/NL123475C/xx active
- LU LU35704D patent/LU35704A1/xx unknown
-
1957
- 1957-01-23 FR FR1165257D patent/FR1165257A/en not_active Expired
-
1958
- 1958-01-14 CH CH348956D patent/CH348956A/en unknown
- 1958-01-21 GB GB2070/58A patent/GB879467A/en not_active Expired
- 1958-01-22 DE DEC16157A patent/DE1206398B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| LU35704A1 (en) | |
| CH348956A (en) | 1960-09-30 |
| NL224259A (en) | |
| DE1206398B (en) | 1965-12-09 |
| BE564177A (en) | |
| NL123475C (en) | |
| FR1165257A (en) | 1958-10-21 |
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