IT1265363B1 - Processo per la produzione di goethite - Google Patents

Processo per la produzione di goethite

Info

Publication number
IT1265363B1
IT1265363B1 IT93MI002537A ITMI932537A IT1265363B1 IT 1265363 B1 IT1265363 B1 IT 1265363B1 IT 93MI002537 A IT93MI002537 A IT 93MI002537A IT MI932537 A ITMI932537 A IT MI932537A IT 1265363 B1 IT1265363 B1 IT 1265363B1
Authority
IT
Italy
Prior art keywords
production process
goethite
goethite production
precipitation
salts
Prior art date
Application number
IT93MI002537A
Other languages
English (en)
Inventor
Berndt-Ullrich Kohler
Haruki Kurokawa
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of ITMI932537A0 publication Critical patent/ITMI932537A0/it
Publication of ITMI932537A1 publication Critical patent/ITMI932537A1/it
Application granted granted Critical
Publication of IT1265363B1 publication Critical patent/IT1265363B1/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/22—Compounds of iron
    • C09C1/24—Oxides of iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide [Fe2O3]
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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
    • C01P2006/12—Surface area
    • 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • 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)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Compounds Of Iron (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Catalysts (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

La presente invenzione riguarda un processo per la preparazione di goethite mediante precipitazione di sali di Fe(II) con base in eccesso e successiva ossidazione in presenza di soluzione di silicato.
IT93MI002537A 1992-12-23 1993-12-03 Processo per la produzione di goethite IT1265363B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4243760A DE4243760A1 (de) 1992-12-23 1992-12-23 Verfahren zur Herstellung von Goethit

Publications (3)

Publication Number Publication Date
ITMI932537A0 ITMI932537A0 (it) 1993-12-03
ITMI932537A1 ITMI932537A1 (it) 1995-06-03
IT1265363B1 true IT1265363B1 (it) 1996-11-22

Family

ID=6476324

Family Applications (1)

Application Number Title Priority Date Filing Date
IT93MI002537A IT1265363B1 (it) 1992-12-23 1993-12-03 Processo per la produzione di goethite

Country Status (6)

Country Link
US (1) US5338355A (it)
JP (1) JPH06219747A (it)
KR (1) KR100269935B1 (it)
DE (1) DE4243760A1 (it)
GB (1) GB2273698B (it)
IT (1) IT1265363B1 (it)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931025A (en) * 1973-09-21 1976-01-06 Bayer Aktiengesellschaft Magnetic iron oxides with improved orientability and a process for their production
US4136158A (en) * 1976-11-01 1979-01-23 Toda Kogyo Corp. Production of acicular magnetic iron oxides
JPS5356196A (en) * 1976-11-01 1978-05-22 Toda Kogyo Corp Process for preparing acicular alphaafeooh particle
JPS5375199A (en) * 1976-12-15 1978-07-04 Toda Kogyo Corp Method of making acicular alphaa feooh particulates
JPS5479200A (en) * 1977-12-06 1979-06-23 Toda Kogyo Corp Manufacture of co containing needleelike crystallin magnetic iron oxide particle powder
JPS5948766B2 (ja) * 1978-05-31 1984-11-28 利根産業株式会社 ゲ−タイトの製法
JPS5583208A (en) * 1978-12-20 1980-06-23 Hitachi Maxell Ltd Preparation of ferromagnetic powder
US4222790A (en) * 1979-03-23 1980-09-16 Cities Service Company Calcination of ferrite tans
JPS5950607B2 (ja) * 1979-08-09 1984-12-10 戸田工業株式会社 針状晶磁性酸化鉄粒子粉末の製造法
JPS6063904A (ja) * 1983-09-17 1985-04-12 Showa Denko Kk 鉄を主体とする針状磁性粉の製造法
JPS6092401A (ja) * 1983-10-25 1985-05-24 Toda Kogyo Corp 紡錘型を呈したゲ−タイト粒子粉末及びその製造法
JPS60103040A (ja) * 1983-11-10 1985-06-07 Dainippon Ink & Chem Inc 針状晶ゲ−サイトの製造方法
JPS60141625A (ja) * 1983-12-28 1985-07-26 Toyo Soda Mfg Co Ltd 微細粒状のα−オキシ水酸化鉄の製造法
JPS60162708A (ja) * 1984-01-31 1985-08-24 Toda Kogyo Corp 磁気記録用針状晶鉄合金磁性粒子粉末の製造法
JPS60181209A (ja) * 1984-02-28 1985-09-14 Ube Ind Ltd 磁性粉の製造法
DE3422916A1 (de) * 1984-06-20 1986-01-02 Bayer Ag, 5090 Leverkusen Im wesentlichen aus eisen bestehende magnetische pigmente, verfahren zu ihrer herstellung sowie deren verwendung
JPS62128929A (ja) * 1985-11-29 1987-06-11 Nippon Steel Corp ゲ−サイトの製造法
JPH0742119B2 (ja) * 1986-03-22 1995-05-10 戸田工業株式会社 針状晶ゲ−タイト粒子粉末の製造法
JP2784794B2 (ja) * 1989-04-20 1998-08-06 戸田工業 株式会社 磁性酸化鉄粒子粉末
DE3930601A1 (de) * 1989-09-13 1991-03-14 Basf Ag Verfahren zur herstellung von plaettchenfoermigen hematitpigmenten

Also Published As

Publication number Publication date
KR940014161A (ko) 1994-07-16
ITMI932537A0 (it) 1993-12-03
US5338355A (en) 1994-08-16
KR100269935B1 (ko) 2000-10-16
GB2273698A (en) 1994-06-29
GB2273698B (en) 1995-09-20
GB9325114D0 (en) 1994-02-09
JPH06219747A (ja) 1994-08-09
DE4243760A1 (de) 1994-06-30
ITMI932537A1 (it) 1995-06-03

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961228