MA21046A1 - Procede destine au traitement complementaire de solutions aqueuses d'acide fluosilicique . - Google Patents
Procede destine au traitement complementaire de solutions aqueuses d'acide fluosilicique .Info
- Publication number
- MA21046A1 MA21046A1 MA21286A MA21286A MA21046A1 MA 21046 A1 MA21046 A1 MA 21046A1 MA 21286 A MA21286 A MA 21286A MA 21286 A MA21286 A MA 21286A MA 21046 A1 MA21046 A1 MA 21046A1
- Authority
- MA
- Morocco
- Prior art keywords
- acid solutions
- fluosilicic acid
- complementary treatment
- aqueous fluosilicic
- aqueous
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863626448 DE3626448A1 (de) | 1986-08-05 | 1986-08-05 | Verfahren zur aufarbeitung von waessrigen kieselfluorwasserstoffsaeureloesungen |
Publications (1)
Publication Number | Publication Date |
---|---|
MA21046A1 true MA21046A1 (fr) | 1988-04-01 |
Family
ID=6306710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MA21286A MA21046A1 (fr) | 1986-08-05 | 1987-07-29 | Procede destine au traitement complementaire de solutions aqueuses d'acide fluosilicique . |
Country Status (5)
Country | Link |
---|---|
US (1) | US4774005A (fr) |
EP (1) | EP0255629B1 (fr) |
DE (2) | DE3626448A1 (fr) |
ES (1) | ES2011787B3 (fr) |
MA (1) | MA21046A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE58904064D1 (de) * | 1988-10-06 | 1993-05-19 | Edelhoff Entsorgung Nord Gmbh | Verfahren zur entsorgung anorganischer rueckstaende. |
DE3900732C1 (fr) * | 1989-01-12 | 1989-12-21 | Metallgesellschaft Ag, 6000 Frankfurt, De | |
FR2667307B1 (fr) * | 1990-10-02 | 1992-10-30 | Philippe Pichat | Pretraitement de dechets et residus contenant des ions sodium et potassium. |
FR2676727B1 (fr) * | 1991-05-24 | 1994-04-15 | Hydro Azote | Procede de traitement et de recyclage des eaux de lavage de gaz chargees en fluor. |
JP3192557B2 (ja) * | 1994-08-26 | 2001-07-30 | シャープ株式会社 | 排水処理装置および排水処理方法 |
US20050203237A1 (en) * | 2004-03-11 | 2005-09-15 | Cornelius Maria Dekkers Josephus H. | Biocidal compositions and methods of making thereof |
US20050202100A1 (en) * | 2004-03-11 | 2005-09-15 | Maria Dekkers Josephus H.C. | Biocidal compositions and methods of making thereof |
WO2018220141A1 (fr) * | 2017-06-01 | 2018-12-06 | Fundació Institut De Bioenginyeria De Catalunya (Ibec) | Particules de calcium à libération d'ions contrôlée, leur procédé de production, et utilisation associée |
CN107739121A (zh) * | 2017-10-13 | 2018-02-27 | 湖北省宏源药业科技股份有限公司 | 一种含氟硅废水的深度处理技术 |
CN109956580A (zh) * | 2017-12-22 | 2019-07-02 | 神华集团有限责任公司 | 燃煤电厂高盐脱硫废水的预处理方法和*** |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780521A (en) * | 1954-03-22 | 1957-02-05 | Int Minerals & Chem Corp | Process for producing colloidal silicafree calcium fluoride |
DE2248149A1 (de) * | 1972-09-30 | 1974-04-04 | Bayer Ag | Verfahren zur aufbereitung waessriger kieselfluorwasserstoffsaeuren |
DE2307897C3 (de) * | 1973-02-17 | 1982-02-18 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von synthetischem Flußspat |
US4078043A (en) * | 1974-02-15 | 1978-03-07 | Kali-Chemie Aktiengesellschaft | Process for preparing calcium fluoride from hexafluoro silicic acid and production of silicic acid gel or active silicic acid from said calcium fluoride |
DE2407238C3 (de) * | 1974-02-15 | 1979-06-28 | Kali-Chemie Ag, 3000 Hannover | Verfahren zur Herstellung von Calciumfluorid aus Hexafluorokieselsäure |
-
1986
- 1986-08-05 DE DE19863626448 patent/DE3626448A1/de not_active Withdrawn
-
1987
- 1987-07-16 DE DE8787110274T patent/DE3760949D1/de not_active Expired
- 1987-07-16 ES ES87110274T patent/ES2011787B3/es not_active Expired - Lifetime
- 1987-07-16 EP EP87110274A patent/EP0255629B1/fr not_active Expired
- 1987-07-22 US US07/076,340 patent/US4774005A/en not_active Expired - Fee Related
- 1987-07-29 MA MA21286A patent/MA21046A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US4774005A (en) | 1988-09-27 |
EP0255629B1 (fr) | 1989-11-08 |
ES2011787B3 (es) | 1990-02-16 |
EP0255629A1 (fr) | 1988-02-10 |
DE3760949D1 (en) | 1989-12-14 |
DE3626448A1 (de) | 1988-02-11 |
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