GB399718A - Improvements in and relating to the production of hydrocyanic acid - Google Patents
Improvements in and relating to the production of hydrocyanic acidInfo
- Publication number
- GB399718A GB399718A GB7356/33A GB735633A GB399718A GB 399718 A GB399718 A GB 399718A GB 7356/33 A GB7356/33 A GB 7356/33A GB 735633 A GB735633 A GB 735633A GB 399718 A GB399718 A GB 399718A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrocyanic acid
- chamber
- gases
- oxidation
- combustion
- 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
- C01C3/02—Preparation, separation or purification of hydrogen cyanide
- C01C3/0254—Preparation, separation or purification of hydrogen cyanide from cyanates or from thiocyanates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0399718/III/1> Hydrocyanic acid is produced by the oxidation of compounds containing hydrogen and the thiocyanate radical which are introduced, in solution or as finely divided solids, in spray form into hot combustion gases containing an excess of oxygen, if desired in the presence of a catalyst, the hydrocyanic acid being removed from the mixture. A pit furnace 1 has a cap 9 with a gas burner 10 operated by coke oven or other fuel gas entering at 11, and compressed air at 12. When the desired temperature is attained, ammonium thiocyanate solution for example is introduced into the reaction chamber 7 by sprayers 5, 6, the jets being directed upwardly and eccentrically into the combustion gas stream. Supplemental oxidizing air amounting to at least five times the quantity required for oxidation of the sulphur is introduced at 13, traversing an annular conduit 14 and apertures 15, and is adjusted so that the temperature of the gases entering the chamber 7 from the combustion chamber 8 is below or not substantially above 700 DEG C., while that of the gases leaving through the tube 3, which contain 1 per cent or more by volume of hydrocyanic acid, is at least 350 DEG C. Catalysts may be introduced into the reaction chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE399718X | 1932-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB399718A true GB399718A (en) | 1933-10-12 |
Family
ID=6397510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7356/33A Expired GB399718A (en) | 1932-03-16 | 1933-03-10 | Improvements in and relating to the production of hydrocyanic acid |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR752296A (en) |
| GB (1) | GB399718A (en) |
-
1933
- 1933-03-10 GB GB7356/33A patent/GB399718A/en not_active Expired
- 1933-03-11 FR FR752296D patent/FR752296A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR752296A (en) | 1933-09-20 |
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