KR960010529A - 미립상(rice grain) 알파(α) 산화철의 제조방법 - Google Patents

미립상(rice grain) 알파(α) 산화철의 제조방법 Download PDF

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Publication number
KR960010529A
KR960010529A KR1019940022449A KR19940022449A KR960010529A KR 960010529 A KR960010529 A KR 960010529A KR 1019940022449 A KR1019940022449 A KR 1019940022449A KR 19940022449 A KR19940022449 A KR 19940022449A KR 960010529 A KR960010529 A KR 960010529A
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KR
South Korea
Prior art keywords
iron oxide
slurry
solution
iron salt
precipitate
Prior art date
Application number
KR1019940022449A
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English (en)
Other versions
KR0136179B1 (ko
Inventor
변태봉
손진군
Original Assignee
김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Application filed by 김만제, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김만제
Priority to KR1019940022449A priority Critical patent/KR0136179B1/ko
Publication of KR960010529A publication Critical patent/KR960010529A/ko
Application granted granted Critical
Publication of KR0136179B1 publication Critical patent/KR0136179B1/ko

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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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • 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
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

본 발명은 오디오, 비디오, 플로피디스크 등 각종 기록매체에 응용되는 미립상산화철의 제조방법을 제공함에 그 목적이 있다. 상기 목적을 달성하기 위한 본 발명은 제이철염 수용액으로부터 미립상 α산화철을 제조하는 방법에 있어서, Fe+2/Fe+3의 농도비를 0.33 이하로 조절한 철염 침전물을 생성시키고, 슬러리화하여 상기 슬러리 용액의 염기도를 10.50-11.75의 범위로 시킴을 그 특징으로 하고 있으며, 이러한 본 발명의 제조방법은 입도크기가 0.2㎕ 이하이고 입도 분포가 균일한 미립상

Description

미립상(rice grain) 알파() 산화철의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (2)

  1. 제이철염 수용액으로부터 미립상산화철을 제조하는 방법에 있어서, 제이철 이온 농도비(Fe+2/Fe+3)를 0.33 이하로 조절한 철염 수용액으로부터 철염 침전물을 생성시키는 단계; 상기 철염 침전물을 수세,여과하여 슬러리화하는 단계; 상기 슬러리 용액에 결정성장조절제를 첨가하고 그 용액의 염기도를 10.50-11.75의 범위로 조절하는 단계; 및 상기 슬러리를 100-200°C의 온도범위에서 수열반응시켜 결정화 석출시키는 단계를 포함함을 특징으로 하는 미립상 α 산화철의 제조방법.
  2. 제1항에 있어서, 상기 철염 침전물 단계시 탄산염제 알카리 수용액으로 제일철 이온을 침전시킴을 특징으로 하는 미립상 α 산화철의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940022449A 1994-09-07 1994-09-07 미립상 알파 산화철의 제조방법 KR0136179B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940022449A KR0136179B1 (ko) 1994-09-07 1994-09-07 미립상 알파 산화철의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940022449A KR0136179B1 (ko) 1994-09-07 1994-09-07 미립상 알파 산화철의 제조방법

Publications (2)

Publication Number Publication Date
KR960010529A true KR960010529A (ko) 1996-04-20
KR0136179B1 KR0136179B1 (ko) 1998-04-25

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ID=19392171

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940022449A KR0136179B1 (ko) 1994-09-07 1994-09-07 미립상 알파 산화철의 제조방법

Country Status (1)

Country Link
KR (1) KR0136179B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11745949B2 (en) 2019-02-06 2023-09-05 Laitram, L.L.C. Modular conveyor belt with hook hinges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11745949B2 (en) 2019-02-06 2023-09-05 Laitram, L.L.C. Modular conveyor belt with hook hinges

Also Published As

Publication number Publication date
KR0136179B1 (ko) 1998-04-25

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