KR970026907A - Method for Purifying Silica in Pickling Waste - Google Patents

Method for Purifying Silica in Pickling Waste Download PDF

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Publication number
KR970026907A
KR970026907A KR1019950041924A KR19950041924A KR970026907A KR 970026907 A KR970026907 A KR 970026907A KR 1019950041924 A KR1019950041924 A KR 1019950041924A KR 19950041924 A KR19950041924 A KR 19950041924A KR 970026907 A KR970026907 A KR 970026907A
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KR
South Korea
Prior art keywords
silica
purifying
pickling liquor
pickling
present
Prior art date
Application number
KR1019950041924A
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Korean (ko)
Other versions
KR100226892B1 (en
Inventor
변태봉
김병원
한기현
손진군
Original Assignee
김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Application filed by 김종진, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김종진
Priority to KR1019950041924A priority Critical patent/KR100226892B1/en
Publication of KR970026907A publication Critical patent/KR970026907A/en
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Publication of KR100226892B1 publication Critical patent/KR100226892B1/en

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof

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

Abstract

본 발명은 페라이트(Ferrite) 제조 원료로 사용되는 산화철, 특히 소프트페이트(Soft ferrite) 제조용 원료에 적합한 고순도 산화철을 제조하기 위한 산세폐액중의 실리카 정제방법에 관한 것으로, 산세폐액중 이미 콜로이드성 슬러지 입자로 생성되어 있는 불용성 실리카 입자는 물론 용존상 실리카이온을 금속염과 유기 화합물을 이용하여 효과적으로 제거하므로서, 고품위의 소프트페라이트 원료용 산화철을 제조하기 위한 산세폐액중의 실리카 정제방법을 제공하고자 하는데, 그 목적이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for purifying silica in pickling liquor for producing high purity iron oxide suitable for raw materials for producing ferrite, especially soft ferrite. The present invention aims to provide a method for purifying silica in pickling liquor for producing high quality iron oxide for soft ferrite raw materials by effectively removing insoluble silica particles generated as well as dissolved silica ions using metal salts and organic compounds. There is this.

상기한 목적을 달성하기 위한 본 발명은 산세폐액중의 실리카 성분을 정제하는 방법에 있어서, 상기 산세폐액의 염기도가 1.0-2.5범위가 되도록 암모늄 몰리브데이트(Ammonium molybdate ; (NH4)6Mo6O24) 금속염을 5×10-4~2×10-3의 몰량범위로 첨가하여 실리카 착화합물을 생성시키는 단계; 상기 생성된 실리카착화합물에 퀴놀린(Quinoline : C9H7N)화합물을 1.3×10-2의 몰량 이상으로 첨가하여 불용성 실리카로 생성시키는 단계; 및 상기 불용성 물질을 여과하는 단계를 포함하여 구성되는 산세폐액중의 실리카 정제방법에 관한 것을 그 요지로 한다.In order to achieve the above object, the present invention provides a method for purifying a silica component in a pickling liquor, wherein the basicity of the pickling liquor is in the range of 1.0-2.5, such as ammonium molybdate (NH 4 ) 6 Mo 6 O 24 ) adding a metal salt in a molar amount range of 5 × 10 −4 to 2 × 10 −3 to form a silica complex compound; Adding a quinoline (Quinoline: C 9 H 7 N) compound to a molar amount of 1.3 × 10 −2 or more to the produced silica complex compound to produce insoluble silica; And a method for purifying the silica in the pickling waste liquid comprising the step of filtering the insoluble material.

Description

산세폐액중의 실리카 정제방법Method for Purifying Silica in Pickling Waste

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (1)

산세 폐액중의 실리카 성분을 정제하는 방법에 있어서, 상기 산세폐액의 염기도가 1.0-2.5의 범위가 되도록 암모늄 몰리브데이트(Ammonium Molybdate) 금속염을 5×10-4~2×10-3의 몰량범위로 첨가하여 실리카 착화합믈을 생성시키는 단계; 상기 생성된 실리카 착화합물 퀴놀린(Quinoline) 화합물을 1.3×10-2몰량이상으로 첨가하여 불용성 실리카 입자로 생성시키는 단계; 및 상기 불용성 물질을 여과하는 단계를 포함하여 구성됨을 특징으로 하는 산세폐액중의 실리카 정제방법.In the method for purifying the silica component in the pickling waste liquid, the molar amount of ammonium molybdate metal salt in the range of 5 × 10 −4 to 2 × 10 −3 so that the basicity of the pickling waste liquid is in the range of 1.0-2.5. Adding to form a silica complex; Adding the produced silica complex quinoline compound in an amount of 1.3 × 10 −2 molar amount to generate insoluble silica particles; And filtering the insoluble material. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950041924A 1995-11-17 1995-11-17 Silica purification method from waste acid KR100226892B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950041924A KR100226892B1 (en) 1995-11-17 1995-11-17 Silica purification method from waste acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950041924A KR100226892B1 (en) 1995-11-17 1995-11-17 Silica purification method from waste acid

Publications (2)

Publication Number Publication Date
KR970026907A true KR970026907A (en) 1997-06-24
KR100226892B1 KR100226892B1 (en) 1999-10-15

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Application Number Title Priority Date Filing Date
KR1019950041924A KR100226892B1 (en) 1995-11-17 1995-11-17 Silica purification method from waste acid

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KR100226892B1 (en) 1999-10-15

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