DE600903C - Process for preparing carbide for azotation - Google Patents
Process for preparing carbide for azotationInfo
- Publication number
- DE600903C DE600903C DE1930600903D DE600903DD DE600903C DE 600903 C DE600903 C DE 600903C DE 1930600903 D DE1930600903 D DE 1930600903D DE 600903D D DE600903D D DE 600903DD DE 600903 C DE600903 C DE 600903C
- Authority
- DE
- Germany
- Prior art keywords
- carbide
- nitrogen
- azotation
- azotization
- preparing carbide
- 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
- C01C3/002—Synthesis of metal cyanides or metal cyanamides from elementary nitrogen and carbides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Description
Verfahren zur Vorbereitung von Carbid für die Azotierung Man hat in letzter Zeit mehrfach versucht, bei der Azotierung von Carbid bessere Ausbeuten dadurch zu erzielen, daß. das Carbid einer Vorbehandlung mit Stickstoff unterworfen wird. Man hat z. B. vorgeschlagen, die Carbidherstellung selbst in Stickstoffatmosphäre vorzunehmen oder das aus den Carbidöfen kommende flüssige Carbid einer Vorazotierung durch strömenden Stickstoff zu unterwerfen. Bei a11 diesen Verfahren ist ein sehr erheblicher Stickstoffaufwand notwendig, der in keinem Verhältnis zu der auf diese Weise erzielten Stickstoffaufnahme steht.Process for preparing carbide for azotization Attempted several times recently, better yields in the azotization of carbide to achieve that. the carbide is subjected to a pretreatment with nitrogen will. One has z. B. proposed the carbide production itself in a nitrogen atmosphere or the liquid carbide coming from the carbide furnaces of a pre-azotization subdue by flowing nitrogen. At a11 this procedure is a very considerable nitrogen expenditure necessary, which is out of proportion to that on this Way achieved nitrogen uptake.
Es wurde gefunden, daß man dieselben Ausbeuteverbesserungen auf viel einfacherem Wege mit sehr geringem Stickstoffaufwand dadurch erhalten kann, daß man die Abkühlung des Carbids in einer ruhenden Stickstoffatmosphäre vornimmt. Das .Verfahren wird in der Weise ausgeführt, daß man das aus dem Carbidofen kommende flüssige Carbid in mehr oder weniger luftdicht verschließbare Gefäße absticht, die vorher oder nachher mit Stickstoff, gegebenenfalls unter Druck, gefüllt werden. Das auf diese Weise erhaltene Carbid hat einen verhältnismäßig geringen Stickstoffgehalt, in der Regel etwa r bis 3 °/o, der aber genügt, die bei der vollständigen Azotierung stickstoffhaltiger Carbide beobachteten günstigen Ergebnisse ebenfalls hervorzurufen.It has been found that you can get the same yield improvements on much Easier way with very little nitrogen expenditure can be obtained in that the carbide is cooled in a static nitrogen atmosphere. That .The method is carried out in such a way that the coming from the carbide furnace liquid carbide in more or less airtight closable vessels that before or afterwards with nitrogen, optionally under pressure, are filled. The carbide obtained in this way has a relatively low nitrogen content, as a rule about 3 to 3 per cent., but this is sufficient for the complete azotization nitrogenous carbides were also observed to produce favorable results.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE600903T | 1930-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE600903C true DE600903C (en) | 1934-08-03 |
Family
ID=6574620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930600903D Expired DE600903C (en) | 1930-10-18 | 1930-10-18 | Process for preparing carbide for azotation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE600903C (en) |
-
1930
- 1930-10-18 DE DE1930600903D patent/DE600903C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE600903C (en) | Process for preparing carbide for azotation | |
DE812547C (en) | Process for cleaning up carbon dioxide | |
ES346215A1 (en) | Steels for hydrocracker vessels containing aluminum,columbium,molybdenum and nickel | |
DE533598C (en) | Process for the production of glow phosphates | |
DE354784C (en) | Process for reducing the acid consumption in the production of dibasic phosphoric acid lime | |
DE545924C (en) | Process for the production of organic fertilizers containing nitrogen | |
DE476662C (en) | Process for the preparation of hydrogen cyanide | |
DE523520C (en) | Process for the production of thiourea | |
DE628744C (en) | Quenched and tempered molybdenum-containing steel alloys with high heat resistance | |
DE431759C (en) | Extraction of silicon carbide from silica and coal | |
DE519993C (en) | Process for the production of ore briquettes | |
GB395337A (en) | Improvements in processes for hardening iron, steel, and cast iron, alloys by nitrogenising | |
DE719877C (en) | Process of chrome-plating objects made of iron and steel | |
AT107299B (en) | Process for the preparation of catalysts for the synthesis of ammonia. | |
DE504344C (en) | Process for the production of potassium magnesium carbonate (Engel's salt) under pressure | |
DE753786C (en) | Process for glow refining of malleable cast iron | |
DE525087C (en) | Process for converting chromates into bichromates | |
DE832148C (en) | Process for the production of vinyl chloride | |
DE542801C (en) | Process for the production of real Kuepen dyes | |
GB394378A (en) | Improvements relating to alloys containing nickel and to methods of producing them | |
GB741558A (en) | Improvements in and relating to apparatus for use in the production of ammonium sulphate from coke oven gases | |
DE512700C (en) | Process for the preparation of alkali cyanides | |
DE734741C (en) | Process for the production of permanent ferrous iron solutions | |
DE483062C (en) | Process for the purification of carbonic acid derived from carbon distillation gases | |
DE591875C (en) | Process for the preparation of iron from ores with chlorination of the ores |