CH574873A5 - - Google Patents
Info
- Publication number
- CH574873A5 CH574873A5 CH1097871A CH1097871A CH574873A5 CH 574873 A5 CH574873 A5 CH 574873A5 CH 1097871 A CH1097871 A CH 1097871A CH 1097871 A CH1097871 A CH 1097871A CH 574873 A5 CH574873 A5 CH 574873A5
- Authority
- CH
- Switzerland
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
- C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid
-
- 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
- C01B17/88—Concentration of sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702037619 DE2037619B2 (de) | 1970-07-29 | 1970-07-29 | Verfahren zur spaltung von schwefelsaeure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH574873A5 true CH574873A5 (de) | 1976-04-30 |
Family
ID=5778245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1097871A CH574873A5 (de) | 1970-07-29 | 1971-07-26 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3825657A (de) |
| BE (1) | BE770319A (de) |
| CH (1) | CH574873A5 (de) |
| DE (1) | DE2037619B2 (de) |
| FR (1) | FR2105816A5 (de) |
| GB (1) | GB1347884A (de) |
| NL (1) | NL7110281A (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950502A (en) * | 1971-02-19 | 1976-04-13 | Chemiebau Dr. A. Zieren Gesellschaft Mit Beschrankter Haftung & Co. Kg | Process for working up the scrubbing solution obtained in the scrubbing of So2 -containing waste gases |
| BE793839A (fr) * | 1972-01-14 | 1973-05-02 | Zieren Chemiebau Gmbh Dr A | Procede de preparation d'un gaz contenant de l'anhydride sulfureux |
| DE2210637B2 (de) * | 1972-03-06 | 1975-12-04 | Davy Powergas Gmbh, 5000 Koeln | Verfahren zur Herstellung eines Schwefeldioxid enthaltenden Gases aus einer bei der TitanweiBherstellung anfallenden Dünnsäure |
| DE2251296C3 (de) * | 1972-10-19 | 1975-05-15 | Davy Powergas Gmbh, 5000 Koeln | Verfahren zur Herstellung von Schwefelsäure aus der bei der Entschwefelung von Koksofengas unter Verwendung von Ammoniak anfallenden Waschlösung |
| US4177248A (en) * | 1974-01-30 | 1979-12-04 | Stauffer Chemical Company | Production of sulfur dioxide from waste sulfuric acid |
| DE2448676A1 (de) * | 1974-10-12 | 1976-04-22 | Hoechst Ag | Verfahren zur herstellung von schwefeldioxid |
| DE2643798A1 (de) * | 1976-09-29 | 1978-04-06 | Bayer Ag | Verfahren zur aufarbeitung von abfallschwefelsaeure und eisensulfatheptahydrat zu frischsaeure |
| DE2843042A1 (de) * | 1978-10-03 | 1980-04-24 | Bayer Ag | Verfahren zur aufarbeitung von abfallsaeuren |
| US4490347A (en) * | 1983-02-07 | 1984-12-25 | E. I. Du Pont De Nemours And Company | Process for sulfuric acid regeneration |
| US5498790A (en) * | 1993-06-09 | 1996-03-12 | Novus International, Inc. | Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture |
| CN107954403B (zh) * | 2018-01-08 | 2024-03-12 | 上海乐谦工程科技有限公司 | 一种资源节约型废酸处理工艺及装置 |
| CN108862210B (zh) * | 2018-06-25 | 2021-12-21 | 无锡英罗唯森科技有限公司 | 一种硫酸浓缩系统和工艺 |
| CN108946685A (zh) * | 2018-08-22 | 2018-12-07 | 戴国梁 | 一种利用废硫酸制备再生液的硫酸制备装置 |
-
1970
- 1970-07-29 DE DE19702037619 patent/DE2037619B2/de active Granted
-
1971
- 1971-07-20 FR FR7126442A patent/FR2105816A5/fr not_active Expired
- 1971-07-22 BE BE770319A patent/BE770319A/xx unknown
- 1971-07-26 NL NL7110281A patent/NL7110281A/xx unknown
- 1971-07-26 CH CH1097871A patent/CH574873A5/xx not_active IP Right Cessation
- 1971-07-28 GB GB3535771A patent/GB1347884A/en not_active Expired
- 1971-07-29 US US00167231A patent/US3825657A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1347884A (en) | 1974-02-27 |
| DE2037619B2 (de) | 1972-07-13 |
| DE2037619A1 (de) | 1972-02-03 |
| US3825657A (en) | 1974-07-23 |
| FR2105816A5 (de) | 1972-04-28 |
| NL7110281A (de) | 1972-02-01 |
| BE770319A (fr) | 1971-12-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |