ES2069829T3 - Tratamiento de soluciones acidas diluidas. - Google Patents
Tratamiento de soluciones acidas diluidas.Info
- Publication number
- ES2069829T3 ES2069829T3 ES91310058T ES91310058T ES2069829T3 ES 2069829 T3 ES2069829 T3 ES 2069829T3 ES 91310058 T ES91310058 T ES 91310058T ES 91310058 T ES91310058 T ES 91310058T ES 2069829 T3 ES2069829 T3 ES 2069829T3
- Authority
- ES
- Spain
- Prior art keywords
- treatment
- acid solutions
- diluted acid
- acidic solution
- mixing
- 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.)
- Expired - Lifetime
Links
- 239000002253 acid Substances 0.000 title abstract 3
- 239000003929 acidic solution Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- -1 FLUORIDE IONS Chemical class 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 229910000000 metal hydroxide Inorganic materials 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/915—Fluorine containing
Abstract
SE PRESENTA UN PROCESO PARA EL TRATAMIENTO DE SOLUCIONES QUE CONTIENEN FLUORURO ACIDICO PARA NEUTRALIZARLAS Y PARA SEPARAR LOS IONES DE FLUORURO EN LA FORMA DE UN PRECIPITADO FACILMENTE FILTRABLE. EL METODO COMPRENDE LA MEZCLA DE LA SOLUCION ACIDICA CON UNA SUSPENSION DE OXIDO O HIDROXIDO DE METAL DE TIERRA ALCALINA, MEDIANTE LO CUAL SE INCORPORA UN AGENTE FLOCULANTE EN LA SOLUCION ACIDICA ANTES DE MEZCLAR LA MISMA CON EL OXIDO O HIDROXIDO DE METAL DE TIERRA ALCALINA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909025126A GB9025126D0 (en) | 1990-11-19 | 1990-11-19 | Treatment of dilute acidic solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2069829T3 true ES2069829T3 (es) | 1995-05-16 |
Family
ID=10685615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91310058T Expired - Lifetime ES2069829T3 (es) | 1990-11-19 | 1991-10-31 | Tratamiento de soluciones acidas diluidas. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5443741A (es) |
EP (1) | EP0487217B1 (es) |
JP (1) | JPH05185073A (es) |
DE (1) | DE69108357T2 (es) |
ES (1) | ES2069829T3 (es) |
GB (1) | GB9025126D0 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3169899B2 (ja) | 1998-07-15 | 2001-05-28 | 日本電気環境エンジニアリング株式会社 | フッ素含有排水の処理方法とその装置 |
JP3634792B2 (ja) * | 2001-10-31 | 2005-03-30 | 三洋電機株式会社 | 被除去物の除去方法 |
ES2193854B1 (es) * | 2001-11-23 | 2005-03-01 | Elcogas, S.A. | Procedimiento para la eliminacion de fluoruro en aguas residuales. |
JP5002884B2 (ja) * | 2003-07-02 | 2012-08-15 | トヨタ自動車株式会社 | 固体高分子型燃料電池システム |
JP4368249B2 (ja) * | 2004-06-01 | 2009-11-18 | 三洋電機株式会社 | 処理装置およびそれを用いた被処理水の処理方法 |
JP4326489B2 (ja) * | 2005-03-22 | 2009-09-09 | 三洋電機株式会社 | 排水処理装置および排水処理方法 |
CA3059395A1 (en) | 2017-05-16 | 2018-11-22 | Kemira Oyj | Method for producing polymer solutions |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371759A (en) * | 1944-01-01 | 1945-03-20 | Phillips Petroleum Co | Process for treatment of aqueous fluoride solutions |
DE1265071B (de) * | 1962-05-25 | 1968-03-28 | Erich Asendorf Dipl Chem Dr | Verfahren zur kontinuierlichen oder diskontinuierlichen, quantitativen Ausfaellung von in Abwaessern geloest vorhandener freier und/oder salzfoermig gebundener Flusssaeure |
JPS4952198A (es) * | 1972-09-20 | 1974-05-21 | ||
JPS4990273A (es) * | 1972-12-28 | 1974-08-28 | ||
JPS525783B2 (es) * | 1973-06-14 | 1977-02-16 | ||
FR2362083A1 (fr) * | 1976-08-19 | 1978-03-17 | Setal | Procede de defluoration des eaux industrielles |
FR2458513A1 (fr) * | 1979-06-05 | 1981-01-02 | Degremont | Procede pour l'elimination des fluorures des effluents les contenant |
US4707273A (en) * | 1986-05-05 | 1987-11-17 | Amchem Products | Manganese removal from aqueous industrial waste effluents |
-
1990
- 1990-11-19 GB GB909025126A patent/GB9025126D0/en active Pending
-
1991
- 1991-10-31 ES ES91310058T patent/ES2069829T3/es not_active Expired - Lifetime
- 1991-10-31 DE DE69108357T patent/DE69108357T2/de not_active Expired - Fee Related
- 1991-10-31 EP EP91310058A patent/EP0487217B1/en not_active Expired - Lifetime
- 1991-11-13 JP JP3297179A patent/JPH05185073A/ja active Pending
-
1994
- 1994-02-14 US US08/195,059 patent/US5443741A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0487217A1 (en) | 1992-05-27 |
DE69108357T2 (de) | 1995-07-20 |
JPH05185073A (ja) | 1993-07-27 |
GB9025126D0 (en) | 1991-01-02 |
EP0487217B1 (en) | 1995-03-22 |
US5443741A (en) | 1995-08-22 |
DE69108357D1 (de) | 1995-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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