FR2414023A1 - Procede de conversion d'imidodisulfate d'ammonium et de dithionate d'ammonium en dioxyde de soufre et ammoniac - Google Patents
Procede de conversion d'imidodisulfate d'ammonium et de dithionate d'ammonium en dioxyde de soufre et ammoniacInfo
- Publication number
- FR2414023A1 FR2414023A1 FR7800758A FR7800758A FR2414023A1 FR 2414023 A1 FR2414023 A1 FR 2414023A1 FR 7800758 A FR7800758 A FR 7800758A FR 7800758 A FR7800758 A FR 7800758A FR 2414023 A1 FR2414023 A1 FR 2414023A1
- 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
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
- C01C1/026—Preparation of ammonia from inorganic compounds
- C01C1/028—Preparation of ammonia from inorganic compounds from ammonium sulfate or sulfite
-
- 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
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
L'INVENTION CONCERNE UN PROCEDE DE CONVERSION D'IMIDODISULFATE D'AMMONIUM ETOU DE DITHIONATE D'AMMONIUM EN DIOXYDE DE SOUFRE ET AMMONIAC. LE PROCEDE CONSISTE A METTRE EN CONTACT LE (OU LES) SEL(S) D'AMMONIUM AVEC UN MELANGE DE BISULFATE D'AMMONIUM ET DE SULFATE D'AMMONIUM FONDUS EN PRESENCE D'UN AGENT REDUCTEUR SULFURE ETOU D'UN CATALYSEUR CONTENANT DES METAUX. L'INVENTION EST APPLICABLE AU TRAITEMENT DE SOLUTIONS PROVENANT DE L'ABSORPTION SIMULTANEE D'OXYDES D'AZOTE ET DE DIOXYDE DE SOUFRE OU DE SOLUTIONS CONTENANT LESDITS SELS OBTENUS PAR EXEMPLE PAR SYNTHESE.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7800758A FR2414023A1 (fr) | 1978-01-10 | 1978-01-10 | Procede de conversion d'imidodisulfate d'ammonium et de dithionate d'ammonium en dioxyde de soufre et ammoniac |
BE1009220A BE873179A (fr) | 1978-01-10 | 1978-12-29 | Procede de conversion d'imidodisulfate d'ammonium, de sulfate d'ammonium et de dithionate d'ammonium en dioxyde de soufre et ammoniac |
DE19792900426 DE2900426A1 (de) | 1978-01-10 | 1979-01-08 | Verfahren zur umwandlung von ammonium- imidodisulfat, ammoniumsulfamat und ammoniumdithionat in schwefeldioxid und ammoniak |
GB79765A GB2011875B (en) | 1978-01-10 | 1979-01-09 | Process for converting ammonium imidodisulphate ammonium sulphamate and ammonium dithionate to sulphur dioxide and ammonia |
SE7900194A SE7900194L (sv) | 1978-01-10 | 1979-01-09 | Forfarande for overforing av ammoniumimidodisulfat, ammoniumsulfanat och ammoniumditionat till svaveldioxid och ammoniak |
NL7900175A NL7900175A (nl) | 1978-01-10 | 1979-01-09 | Werkwijze voor de omzetting van ammoniumimidodisulfaat, ammoniumsulfamaat en ammoniumdithionaat in zwavel- dioxyde en ammoniak. |
IT19145/79A IT1112006B (it) | 1978-01-10 | 1979-01-09 | Procedimento di conversione di imidodisolfato di ammonio,di sulfammato d'ammonio e di ditionato d'ammonio in biossido di zolfo e ammoniaca |
JP211679A JPS54107498A (en) | 1978-01-10 | 1979-01-10 | Method of converting ammonium salts 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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7800758A FR2414023A1 (fr) | 1978-01-10 | 1978-01-10 | Procede de conversion d'imidodisulfate d'ammonium et de dithionate d'ammonium en dioxyde de soufre et ammoniac |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2414023A1 true FR2414023A1 (fr) | 1979-08-03 |
FR2414023B1 FR2414023B1 (fr) | 1981-10-02 |
Family
ID=9203356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7800758A Granted FR2414023A1 (fr) | 1978-01-10 | 1978-01-10 | Procede de conversion d'imidodisulfate d'ammonium et de dithionate d'ammonium en dioxyde de soufre et ammoniac |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE873179A (fr) |
FR (1) | FR2414023A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2138545A1 (fr) * | 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 (fr) * | 1976-05-31 | 1977-12-30 | Inst Francais Du Petrole | Conversion catalytique d'un sulfate d'ammonium en dioxyde de soufre et ammoniac |
-
1978
- 1978-01-10 FR FR7800758A patent/FR2414023A1/fr active Granted
- 1978-12-29 BE BE1009220A patent/BE873179A/fr unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2138545A1 (fr) * | 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 (fr) * | 1976-05-31 | 1977-12-30 | Inst Francais Du Petrole | Conversion catalytique d'un sulfate d'ammonium en dioxyde de soufre et ammoniac |
Also Published As
Publication number | Publication date |
---|---|
BE873179A (fr) | 1979-06-29 |
FR2414023B1 (fr) | 1981-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |