FR2332231B3 - - Google Patents
Info
- Publication number
- FR2332231B3 FR2332231B3 FR7634770A FR7634770A FR2332231B3 FR 2332231 B3 FR2332231 B3 FR 2332231B3 FR 7634770 A FR7634770 A FR 7634770A FR 7634770 A FR7634770 A FR 7634770A FR 2332231 B3 FR2332231 B3 FR 2332231B3
- Authority
- FR
- France
- 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.)
- Expired
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
- C01B17/507—Preparation of sulfur dioxide by reduction of sulfur compounds of iron sulfates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/03—Papermaking liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Removal Of Specific Substances (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/633,775 US4043822A (en) | 1975-11-20 | 1975-11-20 | Treatment of water-soluble metal sulfate residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2332231A1 FR2332231A1 (fr) | 1977-06-17 |
| FR2332231B3 true FR2332231B3 (OSRAM) | 1979-07-27 |
Family
ID=24541084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7634770A Granted FR2332231A1 (fr) | 1975-11-20 | 1976-11-18 | Procede de traitement de residus de sulfates metalliques solubles dans l'eau et nouveaux produits ainsi obtenus |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4043822A (OSRAM) |
| JP (1) | JPS5263897A (OSRAM) |
| DE (1) | DE2647824A1 (OSRAM) |
| FR (1) | FR2332231A1 (OSRAM) |
| GB (1) | GB1507397A (OSRAM) |
| IT (1) | IT1070921B (OSRAM) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855117A (en) * | 1985-09-13 | 1989-08-08 | Institut Francais Du Petrole | Process for removing sulfur oxides from a gas by means of an absorption mass regenerable by reaction with elemental sulfur |
| FR2587237B1 (fr) * | 1985-09-13 | 1988-01-08 | Inst Francais Du Petrole | Procede d'elimination d'oxydes de soufre d'un gaz au moyen d'une masse d'absorption regenerable par reaction avec du soufre elementaire |
| NL9302081A (nl) * | 1993-11-30 | 1995-06-16 | Gastec Nv | Werkwijze voor het verwijderen van elementaire zwavel uit een gasstroom. |
| WO2008034212A1 (en) * | 2006-09-21 | 2008-03-27 | Qit-Fer & Titane Inc. | Electrochemical process for the recovery of metallic iron and chlorine values from iron-rich metal chloride wastes |
| CA2718585C (en) * | 2008-03-20 | 2014-02-18 | Qit-Fer & Titane Inc. | Electrochemical process for the recovery of metallic iron and chlorine values from iron-rich metal chloride wastes |
| CN109052335B (zh) * | 2018-07-24 | 2023-08-22 | 上海三夫工程技术有限公司 | 一种硫磺气体还原废硫酸制液体二氧化硫和硫酸的方法 |
| CN108928985A (zh) * | 2018-08-13 | 2018-12-04 | 荆门市格林美新材料有限公司 | 一种含钴镍重金属离子废水的循环处理工艺 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US463143A (en) * | 1891-11-17 | Process of and apparatus for preparing aluminium sulphide | ||
| US455611A (en) * | 1891-07-07 | Process of reducing kaolins and clays to their component oxides | ||
| US238980A (en) * | 1881-03-15 | beegee spence | ||
| BE616471A (OSRAM) * | 1961-04-22 | |||
| BE628731A (OSRAM) * | 1962-09-24 | 1900-01-01 | ||
| US3427126A (en) * | 1963-07-01 | 1969-02-11 | Livio Cambi | Preparation of water-insoluble sulphides |
| DE1229995B (de) * | 1964-01-17 | 1966-12-08 | Chemiebau Dr A Zieren Ges Mit | Verfahren zur Gewinnung von Ammoniak und Schwefeldioxyd |
| US3450523A (en) * | 1966-04-15 | 1969-06-17 | Mini Ind Chimice | Procedure for the extraction of manganese,iron and other metals from silicates,metallurgical wastes and complex mining products |
| US3667908A (en) * | 1970-11-27 | 1972-06-06 | Westvaco Corp | Removal and recovery of sulfur oxides from gases |
| FR2138545B1 (OSRAM) * | 1971-05-27 | 1973-05-25 | Inst Francais Du Petrole | |
| FR2157180A6 (OSRAM) * | 1971-07-20 | 1973-06-01 | Inst Francais Du Petrole |
-
1975
- 1975-11-20 US US05/633,775 patent/US4043822A/en not_active Expired - Lifetime
-
1976
- 1976-09-16 GB GB38454/76A patent/GB1507397A/en not_active Expired
- 1976-10-18 IT IT28438/76A patent/IT1070921B/it active
- 1976-10-22 DE DE19762647824 patent/DE2647824A1/de active Pending
- 1976-11-18 FR FR7634770A patent/FR2332231A1/fr active Granted
- 1976-11-19 JP JP51138571A patent/JPS5263897A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT1070921B (it) | 1985-04-02 |
| FR2332231A1 (fr) | 1977-06-17 |
| JPS5263897A (en) | 1977-05-26 |
| DE2647824A1 (de) | 1977-05-26 |
| GB1507397A (en) | 1978-04-12 |
| US4043822A (en) | 1977-08-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |