GB737995A - Method for the manufacture of hydrocyanic acid from volatile nitrogen compounds and hydrocarbons - Google Patents
Method for the manufacture of hydrocyanic acid from volatile nitrogen compounds and hydrocarbonsInfo
- Publication number
- GB737995A GB737995A GB25255/51A GB2525551A GB737995A GB 737995 A GB737995 A GB 737995A GB 25255/51 A GB25255/51 A GB 25255/51A GB 2525551 A GB2525551 A GB 2525551A GB 737995 A GB737995 A GB 737995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- tube
- ammonia
- per
- hydrocarbons
- 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
- C01C3/0208—Preparation in gaseous phase
- C01C3/0212—Preparation in gaseous phase from hydrocarbons and ammonia in the presence of oxygen, e.g. the Andrussow-process
-
- 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
- C01C3/0208—Preparation in gaseous phase
- C01C3/0229—Preparation in gaseous phase from hydrocarbons and ammonia in the absence of oxygen, e.g. HMA-process
- C01C3/0233—Preparation in gaseous phase from hydrocarbons and ammonia in the absence of oxygen, e.g. HMA-process making use of fluidised beds, e.g. the Shawinigan-process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
Hydrocyanic acid and hydrogen are produced from volatile nitrogen compounds and hydrocarbons by passing a mixture thereof containing at least a half a nitrogen atom per atom of carbon with oxygen in such quantities if at all, as to ensure the reaction remains endothermic, through or around continuously heated metal tubes or elongated chambers made of or coated with catalysts, the reaction taking place on the catalytic surfaces at above 800 DEG C., preferably at 900-1200 DEG C. Catalysts may be metals or alloys of Pt, Ru, Os, Pd, Rh, Ir, Cu, Au, Re, Ta, Nb, V, Mo, or W, as well as one or more oxides of the second or third groups of the Periodic Table, such as Al, Sc, Y, La, Be, Mg. These may be in the form of foils or gauzes, which may in addition to lining the tube walls, project into the tube, or as coatings, or the tubes may be provided with ceramic layers or inserts which may themselves be catalytic or suitably impregnated. The gas mixture may be passed through the tubes at a linear speed of more than 5 metres per second. The preferred apparatus consists of a bundle of tubes, vertically or horizontally arranged in a heating furnace, the tubes having individual flexible connections and lead-in pipes of smaller diameter which enable the gas to be fed to and withdrawn from the hottest parts of the tubes. Cooling devices may be arranged externally of the heating chamber. The tubes may be heated electrically, by irradiation or by heating gases. According to an example, ammonia and methane in a volumetric ratio of about 1 : 1 were passed through an externally heated heat resistant steel tube lined with a platinum foil containing 10 per cent ruthenium. The rate of flow employed at reaction temperatures between 950 DEG and 1150 DEG C. was from 6 to 60 kilograms of ammonia per day using a 10 mm. diameter tube or 30 to 240 kilograms per day for a 60 mm. diameter tube. Industrial gas mixtures may be used containing as well as ammonia and methane, hydrogen or nitrogen contaminants.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE737995X | 1949-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB737995A true GB737995A (en) | 1955-10-05 |
Family
ID=6642701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25255/51A Expired GB737995A (en) | 1949-06-01 | 1951-10-29 | Method for the manufacture of hydrocyanic acid from volatile nitrogen compounds and hydrocarbons |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB737995A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996015983A1 (en) * | 1994-11-24 | 1996-05-30 | Quadro Chemicals (Proprietary) Limited | Hydrogen cyanide gas production |
WO2006050781A2 (en) * | 2004-11-12 | 2006-05-18 | Degussa Gmbh | Method for producing hydrogen cyanide and a reaction tube used for carrying out said method |
-
1951
- 1951-10-29 GB GB25255/51A patent/GB737995A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996015983A1 (en) * | 1994-11-24 | 1996-05-30 | Quadro Chemicals (Proprietary) Limited | Hydrogen cyanide gas production |
WO2006050781A2 (en) * | 2004-11-12 | 2006-05-18 | Degussa Gmbh | Method for producing hydrogen cyanide and a reaction tube used for carrying out said method |
WO2006050781A3 (en) * | 2004-11-12 | 2007-01-25 | Degussa | Method for producing hydrogen cyanide and a reaction tube used for carrying out said method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2601221A (en) | Dissociation of ammonia | |
US3259469A (en) | Apparatus for manufacturing ketenes | |
Bates et al. | Studies in photosensitization. I | |
Liander | The utilisation of natural gases for the ammonia process | |
CN1126173A (en) | Process and apparatus for producing heat treatment atmospheres | |
US2589811A (en) | Gas atmosphere generating means for heat-treating furnaces | |
US1915120A (en) | Apparatus for decomposing ammonia | |
GB737995A (en) | Method for the manufacture of hydrocyanic acid from volatile nitrogen compounds and hydrocarbons | |
US2679544A (en) | Manufacture of acetylene and mixtures of acetylene and hydrogen cyanide | |
Huffman et al. | Synthesis of Phosphorus Nitrides1 | |
US3100803A (en) | Preparation of perfluorodimethyl peroxide | |
US3682605A (en) | Method and apparatus for soot controlling in a thermal decomposition of a hydrocarbon gas | |
US4584420A (en) | Method for producing vinyl chloride | |
US4035473A (en) | Method of removing acetylene from anhydrous-hydrogen chloride | |
US3063803A (en) | Turbulent flow flame synthesis of hydrogen cyanide | |
US1128804A (en) | Process of producing hydrogen. | |
US1934610A (en) | Process of producing hydrogen cyanide | |
US3266875A (en) | Production of metal-carbon compounds | |
US3230264A (en) | Reaction of carbonyl fluoride with fluorine | |
US3033658A (en) | Apparatus for producing hydrogen cyanide | |
US2863922A (en) | Preparation of ketene | |
GB763461A (en) | Electric reactors for catalytic gas reactions at high temperatures, and process for the endothermic production from methane and amonia, of both hydrocyanic acid and hydrogen | |
JPS649358B2 (en) | ||
US1958648A (en) | Conversion of methane into liquid hydrocarbons | |
US1125208A (en) | Process for producing reactions in gases at high temperatures and apparatus for practising the same. |