NL7209941A - - Google Patents
Info
- Publication number
- NL7209941A NL7209941A NL7209941A NL7209941A NL7209941A NL 7209941 A NL7209941 A NL 7209941A NL 7209941 A NL7209941 A NL 7209941A NL 7209941 A NL7209941 A NL 7209941A NL 7209941 A NL7209941 A NL 7209941A
- Authority
- NL
- Netherlands
Links
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
- C01B17/504—Preparation of sulfur dioxide by reduction of sulfur compounds of ammonium sulfates
-
- 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
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Treating Waste Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7126613A FR2146599A5 (en) | 1971-07-20 | 1971-07-20 | Sulphur/sulphur dioxide prepn - by contacting ammonium sulphate with hydrogen sulphide or ammonium sulphide in liquid sulphur |
| FR7137788A FR2157180A6 (xx) | 1971-07-20 | 1971-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7209941A true NL7209941A (xx) | 1973-01-23 |
Family
ID=26216532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7209941A NL7209941A (xx) | 1971-07-20 | 1972-07-19 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3833715A (xx) |
| BE (1) | BE786390A (xx) |
| CA (1) | CA974731A (xx) |
| DE (1) | DE2235155A1 (xx) |
| FR (1) | FR2157180A6 (xx) |
| GB (1) | GB1360900A (xx) |
| IT (1) | IT965719B (xx) |
| NL (1) | NL7209941A (xx) |
| SE (1) | SE384998B (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036943A (en) * | 1972-09-15 | 1977-07-19 | Institut Francais Du Petrole | Process for removing sulfur dioxide from a gas and producing sulfur therefrom |
| FR2234918B1 (xx) * | 1973-06-26 | 1976-11-12 | Inst Francais Du Petrole | |
| FR2280711A1 (fr) * | 1974-08-01 | 1976-02-27 | Inst Francais Du Petrole | Procede de reduction des sulfates d'ammonium fondus contenant des impuretes metalliques |
| US4053573A (en) * | 1975-11-20 | 1977-10-11 | Allied Chemical Corporation | Recovery of sulfur values from spent sulfuric acid |
| US4043822A (en) * | 1975-11-20 | 1977-08-23 | Allied Chemical Corporation | Treatment of water-soluble metal sulfate residues |
| DE2900426A1 (de) * | 1978-01-10 | 1979-07-12 | Inst Francais Du Petrol | Verfahren zur umwandlung von ammonium- imidodisulfat, ammoniumsulfamat und ammoniumdithionat in schwefeldioxid und ammoniak |
| US6544492B1 (en) | 1998-07-21 | 2003-04-08 | Crystatech, Inc. | Regeneration method for process which removes hydrogen sulfide from gas streams |
-
1971
- 1971-10-20 FR FR7137788A patent/FR2157180A6/fr not_active Expired
-
1972
- 1972-07-17 US US00272449A patent/US3833715A/en not_active Expired - Lifetime
- 1972-07-18 DE DE2235155A patent/DE2235155A1/de active Pending
- 1972-07-18 GB GB3360972A patent/GB1360900A/en not_active Expired
- 1972-07-18 CA CA147,417A patent/CA974731A/en not_active Expired
- 1972-07-18 BE BE786390D patent/BE786390A/xx unknown
- 1972-07-19 NL NL7209941A patent/NL7209941A/xx unknown
- 1972-07-19 SE SE7209480A patent/SE384998B/xx unknown
- 1972-07-20 IT IT27201/72A patent/IT965719B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| BE786390A (fr) | 1973-01-18 |
| CA974731A (en) | 1975-09-23 |
| FR2157180A6 (xx) | 1973-06-01 |
| US3833715A (en) | 1974-09-03 |
| IT965719B (it) | 1974-02-11 |
| DE2235155A1 (de) | 1973-02-01 |
| SE384998B (sv) | 1976-05-31 |
| GB1360900A (en) | 1974-07-24 |