ES2011787B3 - Procedimiento para la preparacion de soluciones acuosas de acido silicico. - Google Patents

Procedimiento para la preparacion de soluciones acuosas de acido silicico.

Info

Publication number
ES2011787B3
ES2011787B3 ES87110274T ES87110274T ES2011787B3 ES 2011787 B3 ES2011787 B3 ES 2011787B3 ES 87110274 T ES87110274 T ES 87110274T ES 87110274 T ES87110274 T ES 87110274T ES 2011787 B3 ES2011787 B3 ES 2011787B3
Authority
ES
Spain
Prior art keywords
procedure
preparation
acid solutions
silicon acid
aqueous silicon
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
Application number
ES87110274T
Other languages
English (en)
Inventor
Gunther Schimmel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of ES2011787B3 publication Critical patent/ES2011787B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Silicon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
ES87110274T 1986-08-05 1987-07-16 Procedimiento para la preparacion de soluciones acuosas de acido silicico. Expired - Lifetime ES2011787B3 (es)

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
ES2011787B3 true ES2011787B3 (es) 1990-02-16

Family

ID=6306710

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87110274T Expired - Lifetime ES2011787B3 (es) 1986-08-05 1987-07-16 Procedimiento para la preparacion de soluciones acuosas de acido silicico.

Country Status (5)

Country Link
US (1) US4774005A (es)
EP (1) EP0255629B1 (es)
DE (2) DE3626448A1 (es)
ES (1) ES2011787B3 (es)
MA (1) MA21046A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362681B1 (de) * 1988-10-06 1993-04-14 Edelhoff Entsorgung Nord GmbH & Co. Verfahren zur Entsorgung anorganischer Rückstände
DE3900732C1 (es) * 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
US20050202100A1 (en) * 2004-03-11 2005-09-15 Maria Dekkers Josephus H.C. Biocidal compositions and methods of making thereof
US20050203237A1 (en) * 2004-03-11 2005-09-15 Cornelius Maria Dekkers Josephus H. Biocidal compositions and methods of making thereof
MX392644B (es) * 2017-06-01 2025-03-24 Fundacio Inst De Bioenginyeria De Catalunya Ibec Particulas de calcio de liberacion de iones controlada, metodo para producirlo y uso de las mismas
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系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0255629B1 (de) 1989-11-08
DE3626448A1 (de) 1988-02-11
MA21046A1 (fr) 1988-04-01
EP0255629A1 (de) 1988-02-10
US4774005A (en) 1988-09-27
DE3760949D1 (en) 1989-12-14

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