DE321287C - Process for the preparation of nitrogen oxides from air or other mixtures of nitrogen and oxygen - Google Patents

Process for the preparation of nitrogen oxides from air or other mixtures of nitrogen and oxygen

Info

Publication number
DE321287C
DE321287C DE1913321287D DE321287DD DE321287C DE 321287 C DE321287 C DE 321287C DE 1913321287 D DE1913321287 D DE 1913321287D DE 321287D D DE321287D D DE 321287DD DE 321287 C DE321287 C DE 321287C
Authority
DE
Germany
Prior art keywords
nitrogen
air
mixtures
oxygen
preparation
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
Application number
DE1913321287D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CARL ROSSI DR
Original Assignee
CARL ROSSI DR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CARL ROSSI DR filed Critical CARL ROSSI DR
Application granted granted Critical
Publication of DE321287C publication Critical patent/DE321287C/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/203—Preparation of nitrogen oxides using a plasma or an electric discharge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Description

Verfahren zur Darstellung von Stickoxyden aus Luft oder anderen Mischungen von Stickstoff und Sauerstoff. Die Bildung von Stickstoffoxyden aus Luft unter der Einwirkung des elektrischen Lichtbogens ist bekannt.Process for the preparation of nitrogen oxides from air or other mixtures of nitrogen and oxygen. The formation of nitrogen oxides from air under the The effect of the electric arc is known.

Neu und in der technischen Literatur nicht bekannt ist die durch zahlreiche Versuche des Erfinders festgestellte Tatsache, daß die Oxyde mancher Metalle als katalytisches Gift auf die Stickoxyde wirken, besonders wenn die Temperatur des Gases nach dem Austritt aus dem Ofen niedriger wird, und daß daher das Elektrodenmaterial, das ja allmählich verbrennt und so Oxyde bildet, von eminenter Bedeutung ist.It is new and not known in the technical literature because of numerous Experiments by the inventor found that the oxides of some metals as catalytic poison act on the nitrogen oxides, especially if the temperature of the Gas becomes lower after exiting the furnace, and that therefore the electrode material, which gradually burns up and thus forms oxides, is of eminent importance.

So wurde festgestellt, daß besonders die Oxyde der Eisen-, Mangan-, Zinn-, Kupfergruppe u. a. solche Gifte sind, und daß z. B. l/ looo Prozent Eisenoxyd genügt, um die Zersetzung des elektrothermisch hergestellten Stickoxydes zu bewirken. Im Gegensatz hierzu wurde festgestellt, daß Siliziumoxyd sich gegen das Stickoxyd indifferent verhält und daß sich daher dieses Metall ganz besonders als Elektrodenmaterial eignet. Das Siliziummetall kann mit Alurrinium legiert werden.It was found that especially the oxides of iron, manganese, Tin, copper group, etc. such poisons are, and that z. B. 1 / looo percent iron oxide is sufficient to cause the decomposition of the electrothermally produced nitrogen oxide. In contrast, it was found that silicon oxide is against nitrogen oxide behaves indifferently and that this metal is therefore particularly suitable as an electrode material suitable. The silicon metal can be alloyed with aluminum.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Darstellung von Stickoxyden aus Luft oder anderen Mischungen von Stickstoff und Sauerstoff, dadurch gekennzeichnet, daß als Elektroden solche aus Silizium verwendet werden. PATENT CLAIMS: i. Process for the preparation of nitrogen oxides from air or other mixtures of nitrogen and oxygen, characterized in that those made of silicon are used as electrodes. 2. Abänderung des Verfahrens nach Anspruch i, dadurch gekennzeichnet, daß als Elektroden Legierungen aus Silizium mit Aluminium verwendet werden.2. Modification of the procedure according to claim i, characterized in that alloys made of silicon are used as electrodes be used with aluminum.
DE1913321287D 1912-10-22 1913-07-17 Process for the preparation of nitrogen oxides from air or other mixtures of nitrogen and oxygen Expired DE321287C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT321287X 1912-10-22

Publications (1)

Publication Number Publication Date
DE321287C true DE321287C (en) 1920-05-21

Family

ID=11234931

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1913321287D Expired DE321287C (en) 1912-10-22 1913-07-17 Process for the preparation of nitrogen oxides from air or other mixtures of nitrogen and oxygen

Country Status (2)

Country Link
DE (1) DE321287C (en)
FR (1) FR463821A (en)

Also Published As

Publication number Publication date
FR463821A (en) 1914-03-05

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