GB411177A - Improved process of removing water from sodium cyanide solutions - Google Patents
Improved process of removing water from sodium cyanide solutionsInfo
- Publication number
- GB411177A GB411177A GB34667/32A GB3466732A GB411177A GB 411177 A GB411177 A GB 411177A GB 34667/32 A GB34667/32 A GB 34667/32A GB 3466732 A GB3466732 A GB 3466732A GB 411177 A GB411177 A GB 411177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium cyanide
- solution
- temperature
- solutions
- cyanide
- 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
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/08—Simple or complex cyanides of metals
- C01C3/10—Simple alkali metal cyanides
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Seasonings (AREA)
Abstract
Sodium cyanide is obtained from solutions thereof by rapidly heating a thin layer of the solution by contact with a hot body having such a temperature above the boiling point of the solution that evaporation to the dry salt is effected in a brief time. The process is also applicable to drying a moist mass of sodium cyanide or the hydrate NaCN.2H2O since at raised temperature these are converted into solutions of sodium cyanide. The heated surface may be made of metal, e.g. iron, may have a temperature of 140--300 DEG C. and may take the form of a revolving drum internally heated by steam. The concentrated sodium cyanide solution is applied without preheating for example in the form of a spray or drops, or a thin layer of flowing solution. The dried cyanide adheres to the heated surface in a compact layer and may be scraped off. The water vapour formed should be removed as quickly as possible. By working at reduced pressure, the temperature may be correspondingly reduced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US411177XA | 1932-07-15 | 1932-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB411177A true GB411177A (en) | 1934-06-07 |
Family
ID=21914843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34667/32A Expired GB411177A (en) | 1932-07-15 | 1932-12-07 | Improved process of removing water from sodium cyanide solutions |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR754971A (en) |
| GB (1) | GB411177A (en) |
| NL (1) | NL37448C (en) |
-
0
- NL NL37448D patent/NL37448C/xx active
-
1932
- 1932-12-07 GB GB34667/32A patent/GB411177A/en not_active Expired
-
1933
- 1933-04-29 FR FR754971D patent/FR754971A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR754971A (en) | 1933-11-17 |
| NL37448C (en) |
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