ES2180036T3 - Procedimiento para la preparacion de disoluciones de hierro ferrico para la purificacion de agua y el uso del producto asi obtenido. - Google Patents

Procedimiento para la preparacion de disoluciones de hierro ferrico para la purificacion de agua y el uso del producto asi obtenido.

Info

Publication number
ES2180036T3
ES2180036T3 ES97917312T ES97917312T ES2180036T3 ES 2180036 T3 ES2180036 T3 ES 2180036T3 ES 97917312 T ES97917312 T ES 97917312T ES 97917312 T ES97917312 T ES 97917312T ES 2180036 T3 ES2180036 T3 ES 2180036T3
Authority
ES
Spain
Prior art keywords
water
ferric
iron
ferric compound
ferrous
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
ES97917312T
Other languages
English (en)
Inventor
Simo Jokinen
Stefan Jafverstrom
Timo Kenakkala
Oliva Lhota
Juhani Tuomarla
Kjell Stendahl
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.)
Kemira Chemicals Oy
Original Assignee
Kemira Chemicals Oy
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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Application granted granted Critical
Publication of ES2180036T3 publication Critical patent/ES2180036T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/009—Compounds containing, besides iron, two or more other elements, with the exception of oxygen or hydrogen
    • 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
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE PREPARACION , A PARTIR DE HIERRO FERROSO, DE SUSTANCIAS QUIMICAS PARA EL TRATAMIENTO DEL AGUA EN FORMA DE SOLUCION QUE CONTIENEN HIERRO FERRICO; A UN PRODUCTO INTERMEDIO GRANULADO OBTENIDO EN DICHO PROCEDIMIENTO; Y A LA UTILIZACION DE LOS PRODUCTOS FINALES DE DICHO PROCEDIMIENTO. EN EL CITADO PROCEDIMIENTO, SE OXIDA UN MATERIAL BRUTO QUE CONTIENE HIERRO FERROSO EN FORMA DE SOLUCION ACUOSA E IMPUREZAS EVENTUALES, A ELEVADA TEMPERATURA, DE FORMA QUE SE OBTIENEN UN COMPUESTO FERRICO PRACTICAMENTE PURO, QUE PRECIPITA, Y UNA FASE DE SOLUCION QUE CONTIENE DICHAS IMPUREZAS. LA IDEA ESENCIAL DE LA INVENCION ES QUE LA PRECIPITACION SE LLEVA A CABO DE TAL FORMA QUE UNA PARTE DEL HIERRO FERRICO PRECIPITA EN FORMA DE GOETITA FEO(OH) O, EN PRESENCIA DE IONES SULFATO, EN FORMA DE JAROSITA DE HIDRONIO H 3 OFE 3 (OH) SUB,6 (SO 4 ) 2 , MIENTRAS QUE PARTE DEL HIERRO FERRICO PERMANECE COMO COMPUESTO FERRICO SOLUBLE EN AGUA, EN LA FASE DE SOLUCION. LOS MATERIALES BRUTOS ADECUADOS INCLUYEN SULFATO FERROSO IMPURO Y SOLUCIONES DE ATAQUE QUIMICO QUE CONTIENEN CLORURO FERROSO. EL COMPUESTO FERRICO PURO PRECIPITADO SE PUEDE SEPARAR NUEVAMENTE MEDIANTE FILTRACION O, ALTERNATIVAMENTE, LA SUSPENSION SE PUEDE GRANULAR PARA FORMAR UN PRODUCTO INTERMEDIO SOLIDO Y SE PUEDE RESUSPENDER POSTERIORMENTE EN AGUA, TRAS LO CUAL SE PUEDE SEPARAR UN COMPUESTO FERRICO PURO MEDIANTE FILTRACION. DICHO COMPUESTO PURO SE DISUELVE EN UN ACIDO, TRAS LO CUAL ES ADECUADO COMO COAGULANTE PARA LA PURIFICACION DEL AGUA DE BEBIDA, Y LA FASE DE SOLUCION ES ADECUADA COMO COAGULANTE PARA EL TRATAMIENTO DE AGUA RESIDUAL.
ES97917312T 1996-04-16 1997-04-15 Procedimiento para la preparacion de disoluciones de hierro ferrico para la purificacion de agua y el uso del producto asi obtenido. Expired - Lifetime ES2180036T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI961660A FI103034B (fi) 1996-04-16 1996-04-16 Menetelmä ferrirautaa sisältävien vedenpuhdistusliuosten valmistamisek si sekä saatujen tuotteiden käyttö

Publications (1)

Publication Number Publication Date
ES2180036T3 true ES2180036T3 (es) 2003-02-01

Family

ID=8545853

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97917312T Expired - Lifetime ES2180036T3 (es) 1996-04-16 1997-04-15 Procedimiento para la preparacion de disoluciones de hierro ferrico para la purificacion de agua y el uso del producto asi obtenido.

Country Status (13)

Country Link
EP (1) EP0958248B1 (es)
JP (1) JP2000508236A (es)
CN (1) CN1138705C (es)
AT (1) ATE224340T1 (es)
AU (1) AU2569997A (es)
BR (1) BR9710953A (es)
CA (1) CA2250133A1 (es)
CZ (1) CZ314698A3 (es)
DE (1) DE69715674T2 (es)
ES (1) ES2180036T3 (es)
FI (1) FI103034B (es)
NO (1) NO984845L (es)
WO (1) WO1997038944A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI106791B (fi) 1998-10-30 2001-04-12 Kemira Chemicals Oy Menetelmä käyttökelpoisten tuotteiden valmistamiseksi epäpuhtaasta ferrisulfaattiliuoksesta
WO2007036949A1 (en) * 2005-09-30 2007-04-05 Council Of Scientific & Industrial Research A cost-effective process for the preparation of solar salt having high purity and whiteness
EP2334765A2 (en) 2008-10-08 2011-06-22 Shell Internationale Research Maatschappij B.V. Process to prepare a gas mixture of hydrogen and carbon monoxide
CN102849803B (zh) * 2011-06-28 2014-12-03 鞍钢股份有限公司 一种Fenton反应催化剂回收利用的方法
CN105692828B (zh) * 2016-02-03 2019-04-12 长沙矿冶研究院有限责任公司 用铌钽铁矿废渣制备聚硅酸硫酸铁絮凝剂的方法和应用
CN106040267B (zh) * 2016-06-24 2018-08-21 武汉大学 草黄铁矾催化剂的制备及生物类电-芬顿体系处理废水的方法
CN113184820A (zh) * 2021-04-25 2021-07-30 湖南雅城新材料有限公司 一种利用钛白副产物硫酸亚铁制备磷酸铁的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1094326A (en) * 1977-08-19 1981-01-27 Verner B. Sefton Process for the precipitation of iron as jarosite
FI97291C (fi) * 1993-06-17 1996-11-25 Kemira Chemicals Oy Menetelmä alumiinin talteenottamiseksi vedenkäsittelylietteestä

Also Published As

Publication number Publication date
EP0958248B1 (en) 2002-09-18
EP0958248A1 (en) 1999-11-24
CN1216517A (zh) 1999-05-12
FI961660A0 (fi) 1996-04-16
FI103034B1 (fi) 1999-04-15
CN1138705C (zh) 2004-02-18
JP2000508236A (ja) 2000-07-04
DE69715674D1 (de) 2002-10-24
WO1997038944A1 (en) 1997-10-23
AU2569997A (en) 1997-11-07
NO984845D0 (no) 1998-10-16
CA2250133A1 (en) 1997-10-23
DE69715674T2 (de) 2003-01-23
FI103034B (fi) 1999-04-15
CZ314698A3 (cs) 1999-02-17
FI961660A (fi) 1997-10-17
BR9710953A (pt) 2000-03-14
NO984845L (no) 1998-12-16
ATE224340T1 (de) 2002-10-15

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