AT77367B - Process for processing diluted nitrous gases on ammonium nitrate with simultaneous recovery of alkali carbonate or alkali bicarbonate used to absorb the nitrous gases. - Google Patents
Process for processing diluted nitrous gases on ammonium nitrate with simultaneous recovery of alkali carbonate or alkali bicarbonate used to absorb the nitrous gases.Info
- Publication number
- AT77367B AT77367B AT77367DA AT77367B AT 77367 B AT77367 B AT 77367B AT 77367D A AT77367D A AT 77367DA AT 77367 B AT77367 B AT 77367B
- Authority
- AT
- Austria
- Prior art keywords
- nitrous gases
- alkali
- ammonium nitrate
- nitrate
- absorb
- Prior art date
Links
- 239000007789 gas Substances 0.000 title claims description 13
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 title claims description 12
- 239000003513 alkali Substances 0.000 title claims description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 title claims description 8
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims description 5
- 238000011084 recovery Methods 0.000 title claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 7
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 6
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 238000009835 boiling Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- YBVAXJOZZAJCLA-UHFFFAOYSA-N nitric acid nitrous acid Chemical compound ON=O.O[N+]([O-])=O YBVAXJOZZAJCLA-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Description
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Verfahren zur Verarbeitung verdünnter nitroser Gase auf Ammoniumnitrat unter gleichzeitiger Wiedergewinnung von zur Absorption der nitrosen Gase dienendem Alkali- karbonat bzw. Alkalibikarbonat.
Bei der Absorption von nitrosen Gasen in Alkalien erhält man, wie bekannt, hauptsächlich Nitrit. Der Verbrauch von Nitrit ist aber beschränkt, während die Produktion die Nachfrage un) viel übersteigt. Grosse stengeln von Nitrit sind deshalb in Nitrat übergeführt und als solches verkauft worden. Da dieses Nitrat gewöhnlich aus verhältnismässig teurer Soda dargestellt worden ist, wird der Verdienst beim Verkauf des Nitrates sehr gering sein. Man hat deshalb nach Verfahren gesucht, mittels welchen eine wirt-
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Kohlensaure verbraucht werden.
Wenn boda a) Ahorptloll8l1litteì für die uitrosen ('ase benutzt wird, kann das Verfahren beispielsweise wie folgt durchgeführt werden.
Das bei der Absorptlon von nitrosen Gasen in Soda erhaltene Nitrit oder Nitrit- wird wird mittels Satpetersaure auf bekannte Weise in Nitrat übergeführt. Die so er- litltene Nitratlösung wird sodann mit der erforderlichen Menge Ammoniumchlorid versetzt,
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wenn erwünscht, in Karbonat übergeführt werden und aufs neue zur Absorption @on nitrosen Gasen verwendet werden. Es ist jedoch am vorteilhaftesten, das Bikarbonat'direkt in Wasser zu lösen und die so erhaltene Lösung zur Absorption x verwenden, wodurch man die Kosten einer Kalzinierung des Bikarbonates zu Soda und damit verbundene Am- tnoniakverlusto vermeidet.
Auf diese Weise kann man mit einer verhältnismässig geringen Menge Soda bzw. Bikarbonat, welches im Vorfahren kreist, praktisch unbegrenzte Mengen von nitrosen Gasen absorbieren. Die bei der Reaktion erhaltene Ammoniumchloridlösung
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trachtet. mittels einer gewissen Menge von Bikarbonat unbegrenzte Mengen von nitrosen Gasen und Ammoniak in Ammoniumnitrat überführen. Im praktischen Betrieb werden die nicht zu vermeidenden geringen Verluste an Absorptionsmittel durch Zusatz von Chlornatrium ersetzt.
<Desc / Clms Page number 1>
Process for processing diluted nitrous gases on ammonium nitrate with simultaneous recovery of alkali carbonate or alkali bicarbonate used to absorb the nitrous gases.
As is well known, when nitrous gases are absorbed in alkalis, mainly nitrite is obtained. However, the consumption of nitrite is limited, while production un) much exceeds demand. Large stalks of nitrite have therefore been converted into nitrate and sold as such. Since this nitrate has usually been made from relatively expensive soda, the earnings from selling the nitrate will be very little. A search has therefore been made for processes by means of which an economic
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Carbonic acid are consumed.
If boda a) Ahorptloll8l1litteì is used for the uitrosen ('ase, the procedure can for example be carried out as follows.
The nitrite or nitrite obtained in the absorption of nitrous gases in soda is converted into nitrate in a known manner by means of satpetic acid. The nitrate solution thus obtained is then mixed with the required amount of ammonium chloride,
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<Desc / Clms Page number 2>
if desired, can be converted into carbonate and used again to absorb nitrous gases. However, it is most advantageous to dissolve the bicarbonate directly in water and use the solution thus obtained for absorption x, which avoids the costs of calcining the bicarbonate to soda and the associated loss of ammonia.
In this way one can absorb practically unlimited amounts of nitrous gases with a relatively small amount of soda or bicarbonate, which circulates in the ancestors. The ammonium chloride solution obtained in the reaction
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seeks. convert unlimited amounts of nitrous gases and ammonia into ammonium nitrate by means of a certain amount of bicarbonate. In practical operation, the unavoidable low losses of absorbent are replaced by the addition of sodium chloride.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO77367X | 1914-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT77367B true AT77367B (en) | 1919-07-25 |
Family
ID=19883801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT77367D AT77367B (en) | 1914-06-23 | 1915-06-04 | Process for processing diluted nitrous gases on ammonium nitrate with simultaneous recovery of alkali carbonate or alkali bicarbonate used to absorb the nitrous gases. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT77367B (en) |
-
1915
- 1915-06-04 AT AT77367D patent/AT77367B/en active
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