AT79049B - Process for the catalytic conversion of ammonia into nitrogen oxides. - Google Patents
Process for the catalytic conversion of ammonia into nitrogen oxides.Info
- Publication number
- AT79049B AT79049B AT79049DA AT79049B AT 79049 B AT79049 B AT 79049B AT 79049D A AT79049D A AT 79049DA AT 79049 B AT79049 B AT 79049B
- Authority
- AT
- Austria
- Prior art keywords
- ammonia
- nitrogen oxides
- catalytic conversion
- oxides
- tin oxide
- Prior art date
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 10
- 229910021529 ammonia Inorganic materials 0.000 title claims description 5
- 230000003197 catalytic effect Effects 0.000 title claims description 3
- 238000006243 chemical reaction Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 4
- 229910001887 tin oxide Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur katalytischen Überführung von Ammoniak in Stickstotfoxyde.
Es ist bereits vorgeschlagen'worden, zur Überführung von Ammoniak in Stickstoffoxyde die Oxyde von Wolfram, Chrom, -Molybdän zu verwenden.
Gemäss der Erfindung wird an Stelle dieser Oxyde Zinnoxyd für sich oder vermischt mit diesen bekannten Oxyden als Katalysator verwendet. Es hat sich gezeigt, dass bei der Verwendung von Zinnoxyd die Oxydation des Ammoniaks zn Stickstoffoxyden vorzüglich vor sich geht. Das Zinnoxyd kann entweder durch Fällung oder durch Glühen von Metazinnsäure hergestellt werden, oder es -kann der in der Natur vorkommende Zinnstein in grob gepulvertem Zustande benutzt werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the catalytic conversion of ammonia into nitrogen oxides.
It has already been proposed to use the oxides of tungsten, chromium and molybdenum to convert ammonia into nitrogen oxides.
According to the invention, tin oxide is used as a catalyst in place of these oxides, either alone or mixed with these known oxides. It has been shown that when tin oxide is used, the oxidation of ammonia to nitrogen oxides proceeds excellently. The tin oxide can be produced either by precipitation or by annealing metatannic acid, or the naturally occurring tin stone can be used in a coarsely powdered state.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT79049T | 1916-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT79049B true AT79049B (en) | 1919-11-10 |
Family
ID=3600592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT79049D AT79049B (en) | 1916-05-20 | 1916-05-20 | Process for the catalytic conversion of ammonia into nitrogen oxides. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT79049B (en) |
-
1916
- 1916-05-20 AT AT79049D patent/AT79049B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AT295567B (en) | Stainless steel and its use in the manufacture of silencers for exhaust systems and shipping containers | |
| DE1542504A1 (en) | Catalyst and process for its preparation | |
| AT79049B (en) | Process for the catalytic conversion of ammonia into nitrogen oxides. | |
| DE2353131B2 (en) | Catalyst for the gas phase oxidation of unsaturated aldehydes to unsaturated carboxylic acids | |
| AT66211B (en) | Method for the preparation of sulfuric anhydride by the contact method. | |
| AT54429B (en) | Process for the preparation of ammonia by the catalytic combination of nitrogen and hydrogen. | |
| AT80841B (en) | Process for the production of hydrogen cyanide. | |
| DE2026185A1 (en) | Catalytic combustion of ammonia - using cheap iron - manganese oxide catalyst activated with bismuth oxide | |
| AT96669B (en) | Acid-resistant chrome-copper containing steel alloy. | |
| AT53740B (en) | Process for the production of lead arsenate. | |
| AT65037B (en) | Process for the production of enamels adhering to metals, in particular iron. | |
| DE891315C (en) | Process for converting the organic sulfur contained in coke oven gas and other technical gases into an easily absorbable form | |
| AT86623B (en) | Automobile body. | |
| AT58404B (en) | Means of transporting the combustion of fuels. | |
| AT70747B (en) | Process for the production of hydrogen by catalytic conversion of water vapor with carbon oxide. | |
| DE2151958C3 (en) | Process for the production of a catalyst for the reduction of nitrogen oxides | |
| AT78818B (en) | Process for the removal of carbon dioxide from gas mixtures using chromic acid. | |
| AT41247B (en) | Process for the production of essentially tungsten respectively. Molybdenum existing incandescent bodies. | |
| AT92100B (en) | Process for making sliding and pressure contacts. | |
| AT225687B (en) | Process for the production of acrylonitrile or methacrylonitrile | |
| AT120851B (en) | Sulfuric acid contact method. | |
| AT39351B (en) | Method for producing a rubber-like elastic mass. | |
| AT64557B (en) | Process for increasing the yield of chromium from chromium iron in the aluminothermic production of carbon-free chromium alloys. | |
| AT166432B (en) | Steels for hot tools that are exposed to the action of hot workpieces | |
| AT140070B (en) | Process for increasing the service life of chromium-nickel alloys at high operating temperatures. |