SE8104436L - SET TO EXCOVER AMMONIA FROM GASES AND WASTE WATER CONTAINING AMMONIA AND ACIDS - Google Patents
SET TO EXCOVER AMMONIA FROM GASES AND WASTE WATER CONTAINING AMMONIA AND ACIDSInfo
- Publication number
- SE8104436L SE8104436L SE8104436A SE8104436A SE8104436L SE 8104436 L SE8104436 L SE 8104436L SE 8104436 A SE8104436 A SE 8104436A SE 8104436 A SE8104436 A SE 8104436A SE 8104436 L SE8104436 L SE 8104436L
- Authority
- SE
- Sweden
- Prior art keywords
- ammonia
- waste water
- stream
- gases
- absorbing solution
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 14
- 229910021529 ammonia Inorganic materials 0.000 title abstract 7
- 239000007789 gas Substances 0.000 title abstract 5
- 239000002253 acid Substances 0.000 title abstract 3
- 239000002351 wastewater Substances 0.000 title abstract 3
- 150000007513 acids Chemical class 0.000 title 1
- 238000004821 distillation Methods 0.000 abstract 2
- 239000004254 Ammonium phosphate Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract 1
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
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
- C01C1/12—Separation of ammonia from gases and vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
A method is described for recovering ammonia from a gas stream (101) and a waste water stream (115), both streams containing ammonia and acid gases, comprising adding alkali to the waste water stream (116), subjecting the thus treated stream to distillation with steam (118), withdrawing a hot ammonia-containing vapor stream from the distillation, passing said gas stream through an aqueous absorbing solution of ammonium phosphate (102), passing said hot ammonia containing vapor stream (120) through said absorbing solution to strip acid gases from said absorbing solution (104), and heating the absorbing solution to strip ammonia from said solution (106). <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17156880A | 1980-07-23 | 1980-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE8104436L true SE8104436L (en) | 1982-01-24 |
Family
ID=22624248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8104436A SE8104436L (en) | 1980-07-23 | 1981-07-17 | SET TO EXCOVER AMMONIA FROM GASES AND WASTE WATER CONTAINING AMMONIA AND ACIDS |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5747715A (en) |
| AU (1) | AU7314181A (en) |
| BR (1) | BR8104633A (en) |
| DE (1) | DE3128591A1 (en) |
| GB (1) | GB2080274A (en) |
| SE (1) | SE8104436L (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306664A1 (en) * | 1983-02-25 | 1984-08-30 | Krupp-Koppers Gmbh, 4300 Essen | TWO- OR MULTI-STAGE METHOD FOR WASHING AMMONIA FROM GASES, IN PARTICULAR FROM COOKING OVEN GAS |
| JPH0533169A (en) * | 1991-07-26 | 1993-02-09 | Toomen Constr Kk | Method for treating and recovering waste etchant containing fluorine and ammonia compound |
-
1981
- 1981-07-17 SE SE8104436A patent/SE8104436L/en not_active Application Discontinuation
- 1981-07-20 DE DE19813128591 patent/DE3128591A1/en not_active Withdrawn
- 1981-07-20 BR BR8104633A patent/BR8104633A/en unknown
- 1981-07-20 AU AU73141/81A patent/AU7314181A/en not_active Abandoned
- 1981-07-21 GB GB8122494A patent/GB2080274A/en not_active Withdrawn
- 1981-07-23 JP JP11452981A patent/JPS5747715A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BR8104633A (en) | 1982-04-06 |
| JPS5747715A (en) | 1982-03-18 |
| DE3128591A1 (en) | 1982-06-09 |
| GB2080274A (en) | 1982-02-03 |
| AU7314181A (en) | 1982-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 8104436-4 |