DE493931C - Extraction of metal nitrogen compounds - Google Patents
Extraction of metal nitrogen compoundsInfo
- Publication number
- DE493931C DE493931C DES72309D DES0072309D DE493931C DE 493931 C DE493931 C DE 493931C DE S72309 D DES72309 D DE S72309D DE S0072309 D DES0072309 D DE S0072309D DE 493931 C DE493931 C DE 493931C
- Authority
- DE
- Germany
- Prior art keywords
- nitrogen
- iron
- nitrogen compounds
- lithium
- extraction
- 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
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
- C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
- C01C1/0411—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the catalyst
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/0615—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with transition metals other than titanium, zirconium or hafnium
- C01B21/0622—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with transition metals other than titanium, zirconium or hafnium with iron, cobalt or nickel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/08—Hydrazoic acid; Azides; Halogen azides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/087—Compounds containing nitrogen and non-metals and optionally metals containing one or more hydrogen atoms
- C01B21/092—Compounds containing nitrogen and non-metals and optionally metals containing one or more hydrogen atoms containing also one or more metal atoms
- C01B21/0923—Metal imides or amides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Analytical Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Wenn man direkt Stickstoffverbindungen des Eisens herstellen will, indem man Eisen in einer Stickstoffatmosphäre erhitzt, tritt bekanntlich die Reaktion unter verhältnismäßig wenig hohem Druck, beispielsweise bei Atmosphärendruck, nicht ein, auch nicht bei 1400 °. Die Anlagerung von Stickstoff an Eisen geht unter diesen Bedingungen nicht vor sich, weil die Stickstoffverbindung des Eisens in ihre Elemente bei einer Temperatur dissoziiert, die geringer ist als ihre Bildungstemperatur.If one wants to produce nitrogen compounds of iron directly by converting iron into heated under a nitrogen atmosphere, the reaction occurs as is known little high pressure, for example at atmospheric pressure, not even at 1400 °. The addition of nitrogen to iron does not take place under these conditions because the nitrogen compound of iron dissociates into its elements at a temperature which is lower than its formation temperature.
Bis jetzt hat man dieses Verfahren nur bei verhältnismäßig hohem Druck mit Erfolg durchführen lassen.So far, this method has only been successful under relatively high pressure have it carried out.
Ebenso liegt die Sache bei dem bekannten Haber-Verfahren zur Herstellung von Ammoniak, bei dem, wie Versuche gezeigt haben, die Bildung von Stickstoffverbindungen des Eisens durch den in einer Mischung von Was-The same applies to the well-known Haber process for the production of ammonia, in which, as experiments have shown, the formation of nitrogen compounds of iron by the in a mixture of water
ao serstoff und Stickstoff vorhandenen Stickstoff auftritt.Oxygen and nitrogen present nitrogen occurs.
Haber hat als geringsten Druck zur Ausführung der Reaktion einen Druck von 250 kg pro Quadratzentimeter angegeben.Haber has the slightest pressure to execute the reaction indicated a pressure of 250 kg per square centimeter.
Die anderen Metalle der Eisengruppe, wie Nickel, Kobalt, Wolfram, Molybdän usw., verhalten sich dem Stickstoff gegenüber ebenso wie das Eisen.The other metals of the iron group, such as nickel, cobalt, tungsten, molybdenum, etc., behave towards nitrogen as well as iron.
Infolgedessen ist die direkte Gewinnung in guter Ausbeute von Stickstoffverbindungen des Eisens oder der Metalle der Eisengruppe und infolgedessen auch, die direkte Synthese des Ammoniaks im Beisein von Eisen oder Metallen der Eisengruppe, sei es bei atmosphärischem Druck, sei es auch unter viel höheren Drucken, die aber unterhalb von 250 kg pro Quadratzentimeter liegen, bis jetzt als unmöglich, angesehen worden.As a result, the direct recovery is in good yield of nitrogen compounds of iron or the metals of the iron group, and consequently also, direct synthesis of ammonia in the presence of iron or metals of the iron group, be it in the atmospheric Pressure, even under much higher pressures, but which are below 250 kg per square centimeter, until now considered impossible.
Es wurde nun die überraschende Tatsache festgestellt, daß Eisen und die Metalle der Eisengruppe, wie Nickel, Kobalt usw., Stickstoff in der Wärme unter verhältnismäßig geringen Drucken, die selbst in der Größenordnung des Atmosphärendruckes liegen können, aufnehmen, wenn diese Metalle in Berührung kommen mit fertigen Stickstoffverbindungen des Lithiums, wie Stickstoff lithium oder Lithiumamid. It has now been found the surprising fact that iron and the metals of the Iron group, such as nickel, cobalt, etc., nitrogen in the heat under relatively low Pressures that can even be in the order of magnitude of atmospheric pressure absorb when these metals come into contact come with finished nitrogen compounds of lithium, such as nitrogen lithium or lithium amide.
Wenn man an Stelle von fertigen Stickstoffverbindungen des Lithiums ausgeht von metallischem Lithium, so erhält man keine wesentlichen Mengen von Stickstoffverbindungen des Eisens usw.If one assumes instead of finished nitrogen compounds of lithium metallic lithium, no significant amounts of nitrogen compounds are obtained of iron, etc.
Entsprechend der Erfindung erhält man infolgedessen die Stickstoffverbindung des Eisens oder des Nickels, Kobalts, Wolframs, Molybdäns usw., indem man in einer Atmosphäre von Stickstoff, der mit einem anderen Gas gemischt sein kann, und vorteilhaft bei einem Druck unterhalb von 250 kg pro Quadratzentimeter beispielsweise bei Atmosphärendruck und bei z. B. 550 bis 6oo° CAccording to the invention, the nitrogen compound des is obtained as a result Iron or nickel, cobalt, tungsten, molybdenum etc by placing in an atmosphere of nitrogen, which can be mixed with another gas, and is advantageous in a pressure below 250 kg per square centimeter, for example at atmospheric pressure and at z. B. 550 to 600 ° C
Eisen ο. dgl. erhitzt in Mischung mit Lithium-Stickstoff oder- einem oder mehreren Amiden des Lithiums (wie einleitend erwähnt, bilden sich, bei Drucken, oberhalb von 250 kg pro Quadratzentimeter und höheren Temperaturen Eisenstickstoffverbindungen unmittelbar beim Erhitzen von Eisen in einer Stickstoffatmosphäre). Im Falle von Eisen wird man beispielsweise in Gegenwart von Stickstoff drei Teile Eisenpulver, das mit zwei Teilen Lithiumstickstoff gemischt ist, auf 500 bis 600 ° C erhitzen.Iron ο. Like. Heated in a mixture with lithium nitrogen or one or more amides of lithium (as mentioned in the introduction, in printing above 250 kg per square centimeter and higher temperatures iron-nitrogen compounds immediately upon heating iron in a nitrogen atmosphere). In the case of iron for example, in the presence of nitrogen, three parts of iron powder with two parts lithium nitrogen is mixed, heat to 500 to 600 ° C.
Das vorliegende Verfahren ist anwendbar auf die Gewinnung von Stickstoffverbindungen, die geeignet sind für alle industriellen Zwecke, die für Stickstoffverbindungen bekannt sind.The present process is applicable to the production of nitrogen compounds, which are suitable for all industrial purposes known for nitrogen compounds are.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR493931X | 1925-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE493931C true DE493931C (en) | 1930-03-15 |
Family
ID=8904670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES72309D Expired DE493931C (en) | 1925-01-08 | 1925-11-21 | Extraction of metal nitrogen compounds |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE493931C (en) |
| FR (2) | FR604532A (en) |
| GB (1) | GB245762A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2834650A (en) * | 1955-10-04 | 1958-05-13 | Union Carbide Corp | Production of boron nitride |
| US2866685A (en) * | 1956-10-22 | 1958-12-30 | American Potash & Chem Corp | Preparation of lithium nitride |
| US3549402A (en) * | 1965-08-24 | 1970-12-22 | Carborundum Co | Silicon nitride composition and articles thereof |
-
1925
- 1925-01-08 FR FR604532D patent/FR604532A/en not_active Expired
- 1925-11-21 DE DES72309D patent/DE493931C/en not_active Expired
- 1925-12-31 GB GB33003/25A patent/GB245762A/en not_active Expired
-
1926
- 1926-07-06 FR FR32056D patent/FR32056E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB245762A (en) | 1926-10-28 |
| FR32056E (en) | 1927-09-09 |
| FR604532A (en) | 1926-05-06 |
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