KR920011921A - Method for preparing γ-FeOOH powder - Google Patents

Method for preparing γ-FeOOH powder Download PDF

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Publication number
KR920011921A
KR920011921A KR1019900022642A KR900022642A KR920011921A KR 920011921 A KR920011921 A KR 920011921A KR 1019900022642 A KR1019900022642 A KR 1019900022642A KR 900022642 A KR900022642 A KR 900022642A KR 920011921 A KR920011921 A KR 920011921A
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KR
South Korea
Prior art keywords
feooh
preparing
nacl
reaction
feooh powder
Prior art date
Application number
KR1019900022642A
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Korean (ko)
Other versions
KR930004508B1 (en
Inventor
이재영
변태봉
김대영
손진군
Original Assignee
정명식
포항종합제철 주식회사
백덕현
재단법인 산업과학 기술연구소
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Priority to KR1019900022642A priority Critical patent/KR930004508B1/en
Publication of KR920011921A publication Critical patent/KR920011921A/en
Application granted granted Critical
Publication of KR930004508B1 publication Critical patent/KR930004508B1/en

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    • 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

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

Abstract

내용 없음No content

Description

γ-FeOOH분말의 제조방법Method for preparing γ-FeOOH powder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의해 제조된 γ-FeOOH의 엑스레이 회절분석 결과를 나타내는 그래프, 제2도 본 발명에 의해 제조된 γ-FeOOH의 투과전자현미경 사진.1 is a graph showing the results of X-ray diffraction analysis of γ-FeOOH prepared by the present invention, and FIG. 2 is a transmission electron microscope photograph of γ-FeOOH prepared by the present invention.

Claims (1)

제철소 냉연공장에서 부생(副生)되는 산서폐수를 정제한 0.5-1.5M농도의 FeCl2용액에 0.5-2.5몰 농도의 NaOH를 당량비가 0.2-0.5되게 혼합하여 30℃이하에서 30-1시간동안 공기나 산소같은 산화성 기체를 취입하면서 400rpm이상의 강력한 교반을 하여 미립의 γ-FeOOH 핵 입자를 제조하는 단계, 및 반응온도를 30∼80℃로 상승시키고 반응용액의 PH를 시간당 0.1-0.5씩 증가시키도록 알카리를 투입하면서 반응을 계속시켜 γ-FeOOH를 성장시키는 단계를 포함함을 특징으로 하는 γ-FeOOH 제조방법.0.5-2.5 molar NaCl (0.5-2.5 molar concentration) of NaCl in purified by-products produced by by-products in cold rolling mills is mixed at an equivalence ratio of 0.2-0.5 for 30-1 hours. Or (b) preparing a fine γ-FeOOH core particle by injecting an oxidizing gas such as oxygen at 400 rpm or more, and raising the reaction temperature to 30 to 80 ° C and increasing the pH of the reaction solution by 0.1-0.5 per hour. Γ-FeOOH manufacturing method comprising the step of growing the γ-FeOOH by continuing the reaction while the alkali. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900022642A 1990-12-31 1990-12-31 Process for preparation of gamma-feooh KR930004508B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022642A KR930004508B1 (en) 1990-12-31 1990-12-31 Process for preparation of gamma-feooh

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900022642A KR930004508B1 (en) 1990-12-31 1990-12-31 Process for preparation of gamma-feooh

Publications (2)

Publication Number Publication Date
KR920011921A true KR920011921A (en) 1992-07-25
KR930004508B1 KR930004508B1 (en) 1993-05-27

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ID=19309115

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900022642A KR930004508B1 (en) 1990-12-31 1990-12-31 Process for preparation of gamma-feooh

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KR (1) KR930004508B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030052321A (en) * 2001-12-21 2003-06-27 재단법인 포항산업과학연구원 A Method of Preparing Iron Hydroxides By Using Slag Solution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030052321A (en) * 2001-12-21 2003-06-27 재단법인 포항산업과학연구원 A Method of Preparing Iron Hydroxides By Using Slag Solution

Also Published As

Publication number Publication date
KR930004508B1 (en) 1993-05-27

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