NO984845L - FremgangsmÕte for fremstilling av vannrensningsoppl°sninger inneholdende jern (III) og anvendelse av produktet som oppnÕs - Google Patents

FremgangsmÕte for fremstilling av vannrensningsoppl°sninger inneholdende jern (III) og anvendelse av produktet som oppnÕs

Info

Publication number
NO984845L
NO984845L NO984845A NO984845A NO984845L NO 984845 L NO984845 L NO 984845L NO 984845 A NO984845 A NO 984845A NO 984845 A NO984845 A NO 984845A NO 984845 L NO984845 L NO 984845L
Authority
NO
Norway
Prior art keywords
water
iron
ferric
ferric compound
ferrous
Prior art date
Application number
NO984845A
Other languages
English (en)
Other versions
NO984845D0 (no
Inventor
Simo Jokinen
Stefan Jofverstroem
Timo Kenakkala
Oliva Lhota
Juhani Tuomarla
Kjell Stendahl
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
Publication of NO984845D0 publication Critical patent/NO984845D0/no
Publication of NO984845L publication Critical patent/NO984845L/no

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)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (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

Oppfinnelsen angår en fremgangsmåte for fremstil- lingen, fra jern(II), av oppløsningsform-vann- behandlingskjemikalier som inneholder jern(III), et granulert mellomprodukt oppnådd i fremgangs- måten, og anvendelsen av sluttproduktene i frem- gangsmåten. I fremgangsmåten oksideres et råmate- riale som inneholder jern(II) i form av en vandig oppløsning og eventuelt urenheter ved en elevert temperatur slik at en utfellende, hovedsakelig ren jern(III)-forbindelse og en oppløsningsfase som inneholder urenhetene oppnås. Den vesentlige ideen med oppfinnelsen er at utfellingen utføres på en slik måte at del av jern(III) utfelles i form av goethitt FeO(OH) eller, i nærværet av sulfationer, i form av hydroniumjarositt H3OFe3(OH)6(S04)2, mens del av jern(III) forblir som en vannoppløselig jern(III)- forbindelse i oppløsningsfasen. Egnede råmaterialer omfatter urent jern(II)-sulfat og syrevaskingsopp- løsninger som inneholder jern(II)-klorid. Den ut- felte rene jern(III)-forbindelsen kan ytterligere separeres ved filtrering eller, alternativt, kan slurryen granuleres for å danne et fast mellom- produkt og kan senere på nytt oppslemmes i vann, hvorpå en ren jern(III)-forbindelse kan separeres ved filtrering. Den rene jern(lll)-forbindelsen opp- løses i en syre, hvorpå den er egnet som en koagu- lant for rensingen av drikkevann, og oppløsnings- fasen er slik egnet som en koagulant for behand- lingen av avfallsvann.
NO984845A 1996-04-16 1998-10-16 FremgangsmÕte for fremstilling av vannrensningsoppl°sninger inneholdende jern (III) og anvendelse av produktet som oppnÕs NO984845L (no)

Applications Claiming Priority (2)

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
PCT/FI1997/000229 WO1997038944A1 (en) 1996-04-16 1997-04-15 Process for the preparation of water purification solutions containing ferric iron and the use of the product as of obtained

Publications (2)

Publication Number Publication Date
NO984845D0 NO984845D0 (no) 1998-10-16
NO984845L true NO984845L (no) 1998-12-16

Family

ID=8545853

Family Applications (1)

Application Number Title Priority Date Filing Date
NO984845A NO984845L (no) 1996-04-16 1998-10-16 FremgangsmÕte for fremstilling av vannrensningsoppl°sninger inneholdende jern (III) og anvendelse av produktet som oppnÕs

Country Status (13)

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

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
CN101272837B (zh) * 2005-09-30 2012-02-22 科学与工业研究委员会 用于制备具有高纯度和高洁白度的晒制盐的低成本工艺
WO2010040764A2 (en) 2008-10-08 2010-04-15 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
ATE224340T1 (de) 2002-10-15
FI103034B1 (fi) 1999-04-15
FI961660A0 (fi) 1996-04-16
EP0958248A1 (en) 1999-11-24
AU2569997A (en) 1997-11-07
CZ314698A3 (cs) 1999-02-17
CN1216517A (zh) 1999-05-12
JP2000508236A (ja) 2000-07-04
EP0958248B1 (en) 2002-09-18
DE69715674T2 (de) 2003-01-23
CN1138705C (zh) 2004-02-18
WO1997038944A1 (en) 1997-10-23
ES2180036T3 (es) 2003-02-01
NO984845D0 (no) 1998-10-16
FI961660A (fi) 1997-10-17
CA2250133A1 (en) 1997-10-23
BR9710953A (pt) 2000-03-14
FI103034B (fi) 1999-04-15
DE69715674D1 (de) 2002-10-24

Similar Documents

Publication Publication Date Title
CA2165168A1 (en) Method for the treatment of water treatment sludge
WO1999054257A8 (en) Inorganic composition, process of preparation and method of use
NO984845L (no) FremgangsmÕte for fremstilling av vannrensningsoppl°sninger inneholdende jern (III) og anvendelse av produktet som oppnÕs
JPS6225439B2 (no)
FI20010475A (fi) Menetelmä kalsiumin poistamiseksi sinkkiprosessin sulfaattiliuoksista
PL336334A1 (en) Method of obtaining usable products for a contaminated iron sulphate solution
RU97116265A (ru) Очистка растворов, содержащих металл
ADLEM et al. Treatment of sulphate-rich mining effluents with the barium hydroxide process and recovery of valuable by-products
CA2372170A1 (en) Method, apparatus and use of chelating agents for the purification of calcium sulphate
JPS6310995B2 (no)
JP3282452B2 (ja) 排水中のセレン除去方法
SU973484A1 (ru) Способ получени магнетита и сульфата кальци из отработанных травильных растворов,содержащих сульфат железа
SU922168A1 (ru) Способ очистки сточных вод
JP4408167B2 (ja) 硫酸第二鉄溶液中のマンガンの除去方法
SU1153974A1 (ru) Способ получени фильтрующего материала
RU2023730C1 (ru) Способ очистки щелочных растворов от мышьяка
JPH0592190A (ja) 廃酸液の処理方法
JPS5610389A (en) Disposing method of drainage containing metal cyanogen complex salt
RU93011890A (ru) Способ извлечения марганца из отходов ферросплавного производства
JP4831589B2 (ja) 硫酸第二鉄溶液の製造方法
Nawafune et al. Preparation of Copper Precipitate for Electrolytic Copper Recovery from Electroplating Industry Wastewater(Denki mekki kojo haisui kara no do no denkai kaishu o mokteki to shita do chinden no seisei hoho)
JPH11300372A (ja) セレン含有液の処理方法
IT1241502B (it) Procedimento di eliminazione e recupero del cromo dai reflui acquosi industriali.
Shiratori et al. Effect of several ions on bacterial iron oxidation in hydrometallurgical process
RU93003202A (ru) Способ гидрометаллургического выделения цинка из шламов

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application