FR2424229A2 - Conversion of ammonium imido-di:sulphate and ammonium sulphamate - and opt. ammonium dithionate, into sulphur di:oxide and ammonia - Google Patents
Conversion of ammonium imido-di:sulphate and ammonium sulphamate - and opt. ammonium dithionate, into sulphur di:oxide and ammoniaInfo
- Publication number
- FR2424229A2 FR2424229A2 FR7812882A FR7812882A FR2424229A2 FR 2424229 A2 FR2424229 A2 FR 2424229A2 FR 7812882 A FR7812882 A FR 7812882A FR 7812882 A FR7812882 A FR 7812882A FR 2424229 A2 FR2424229 A2 FR 2424229A2
- Authority
- FR
- France
- Prior art keywords
- ammonium
- opt
- conversion
- sulphate
- dithionate
- 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.)
- Granted
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title abstract 2
- GEHMBYLTCISYNY-UHFFFAOYSA-N Ammonium sulfamate Chemical compound [NH4+].NS([O-])(=O)=O GEHMBYLTCISYNY-UHFFFAOYSA-N 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 title abstract 2
- MVWDMDKITGEAOA-UHFFFAOYSA-N ctk5i5455 Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)S([O-])(=O)=O MVWDMDKITGEAOA-UHFFFAOYSA-N 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title 1
- 239000005864 Sulphur Substances 0.000 title 1
- 229910021529 ammonia Inorganic materials 0.000 title 1
- 229910021653 sulphate ion Inorganic materials 0.000 title 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 1
- 235000011130 ammonium sulphate Nutrition 0.000 abstract 1
- 239000001166 ammonium sulphate Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/026—Preparation of ammonia from inorganic compounds
- C01C1/028—Preparation of ammonia from inorganic compounds from ammonium sulfate or sulfite
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
Abstract
In the conversion of ammonium imidodisulphate and/or ammonium sulphamate into SO2 and NH3, opt. in the presence of ammonium dithionate, the ammonium salt(s) is/are brought into contact with a mixt. of molten ammonium bisulphate and ammonium sulphate, at 280-420 degrees C, in the presence of a S-contg. reducing agent and/or a catalyst contg. Mo, W, Cu, Fe, Co, Cr, Mn and/or Ni, to give a gaseous effluent contg. SO2 and NH3. The process is carried out at 0.5-10, pref. 1-5 atmos. pressure. The SO2 and NH3 can be recovered from the gaseous effluent for further use.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7812882A FR2424229B2 (en) | 1978-04-27 | 1978-04-27 | PROCESS FOR THE CONVERSION OF AMMONIUM SULFAMATE TO SULFUR DIOXIDE AND AMMONIA |
| DE19792900426 DE2900426A1 (en) | 1978-01-10 | 1979-01-08 | PROCESS FOR THE CONVERSION OF AMMONIUM IMIDODISULFATE, AMMONIUM SULFAMATE AND AMMONIUM DITHIONATE INTO SULFUR DIOXIDE AND AMMONIA |
| GB79765A GB2011875B (en) | 1978-01-10 | 1979-01-09 | Process for converting ammonium imidodisulphate ammonium sulphamate and ammonium dithionate to sulphur dioxide and ammonia |
| NL7900175A NL7900175A (en) | 1978-01-10 | 1979-01-09 | PROCESS FOR CONVERSION OF AMMONIUM IMIDODISULPHATE, AMMONIUM SULPHAMATE AND AMMONIUM DITHIONATE TO SULFUR DIOXIDE AND AMMONIA. |
| IT19145/79A IT1112006B (en) | 1978-01-10 | 1979-01-09 | CONVERSION OF AMMONIUM HYDIDISULPHATE, AMMONIUM SULPHAMMATE AND AMMONIUM DITIONATE INTO SULFUR DIOXIDE AND AMMONIUM |
| SE7900194A SE7900194L (en) | 1978-01-10 | 1979-01-09 | PROCEDURE FOR TRANSFER OF AMMONIUM IMIODO DISULPHATE, AMMONIUM SULFANATE AND AMMONIUM DITIONATE TO SULFUR DIOXIDE AND AMMONIA |
| US06/002,273 US4220634A (en) | 1978-01-10 | 1979-01-10 | Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia |
| JP211679A JPS54107498A (en) | 1978-01-10 | 1979-01-10 | Method of converting ammonium salts to sulfur dioxide and ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7812882A FR2424229B2 (en) | 1978-04-27 | 1978-04-27 | PROCESS FOR THE CONVERSION OF AMMONIUM SULFAMATE TO SULFUR DIOXIDE AND AMMONIA |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2424229A2 true FR2424229A2 (en) | 1979-11-23 |
| FR2424229B2 FR2424229B2 (en) | 1985-07-19 |
Family
ID=9207793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7812882A Expired FR2424229B2 (en) | 1978-01-10 | 1978-04-27 | PROCESS FOR THE CONVERSION OF AMMONIUM SULFAMATE TO SULFUR DIOXIDE AND AMMONIA |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2424229B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2138545A1 (en) * | 1971-05-27 | 1973-01-05 | Inst Francais Du Petrole | |
| FR2184429A2 (en) * | 1971-05-27 | 1973-12-28 | Inst Francais Du Petrole | Sulphur dioxide and ammonia from ammonium sulphate - by heating with at least stoichiometric quantities of sulphur,hydrogen, sulphide,ammonium thio-cyanate or carbon monoxide |
| FR2353483A1 (en) * | 1976-05-31 | 1977-12-30 | Inst Francais Du Petrole | CATALYTIC CONVERSION OF AMMONIUM SULPHATE TO SULFUR AND AMMONIA DIOXIDE |
-
1978
- 1978-04-27 FR FR7812882A patent/FR2424229B2/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2138545A1 (en) * | 1971-05-27 | 1973-01-05 | Inst Francais Du Petrole | |
| FR2184429A2 (en) * | 1971-05-27 | 1973-12-28 | Inst Francais Du Petrole | Sulphur dioxide and ammonia from ammonium sulphate - by heating with at least stoichiometric quantities of sulphur,hydrogen, sulphide,ammonium thio-cyanate or carbon monoxide |
| FR2353483A1 (en) * | 1976-05-31 | 1977-12-30 | Inst Francais Du Petrole | CATALYTIC CONVERSION OF AMMONIUM SULPHATE TO SULFUR AND AMMONIA DIOXIDE |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2424229B2 (en) | 1985-07-19 |
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