KR970020941A - Method for producing organic solvent monodispersion of inorganic oxide fine particles - Google Patents

Method for producing organic solvent monodispersion of inorganic oxide fine particles Download PDF

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Publication number
KR970020941A
KR970020941A KR1019950034237A KR19950034237A KR970020941A KR 970020941 A KR970020941 A KR 970020941A KR 1019950034237 A KR1019950034237 A KR 1019950034237A KR 19950034237 A KR19950034237 A KR 19950034237A KR 970020941 A KR970020941 A KR 970020941A
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South Korea
Prior art keywords
organic solvent
fine particles
oxide fine
inorganic oxide
added
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KR1019950034237A
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Korean (ko)
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KR0146753B1 (en
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장주민
강우규
김정선
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이병철
주식회사 선진화학
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Priority to KR1019950034237A priority Critical patent/KR0146753B1/en
Publication of KR970020941A publication Critical patent/KR970020941A/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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/145—Preparation of hydroorganosols, organosols or dispersions in an organic medium

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

본 발명은 Na2O·nSiO2, mH20(1≤n≤3,5≤m≤7)를 비극성 유기용매에 용해하고, 상기 용액에 비이온성 계면 활성제를 첨가하여 고속교반기로 교반한 후, 생성된 슬러리를 0. 1 내지 5NHCl에 첨가하고 교반하여 반응을 완료한 후, 제조된 단분산 산화물 미립자를 물로 세척하여 얻어진 분산체 수용액을 유기용매로 치환하는 것임을 특징으로 하는 무기 산화물 미립자의 유기용매 분산체의 제조방법에 관한 것이다.In the present invention, Na 2 O.nSiO 2 , mH 2 0 (1 ≦ n ≦ 3,5 ≦ m ≦ 7) are dissolved in a nonpolar organic solvent, and a nonionic surfactant is added to the solution, followed by stirring with a high speed stirrer. The resulting slurry is added to 0.1-5 NHCl and stirred to complete the reaction, followed by washing the prepared monodisperse oxide fine particles with water to replace the aqueous solution of the inorganic oxide fine particles with an organic solvent. A method for producing a solvent dispersion.

본 발명에 따르면, 간단한 공정에 의하여 단분산도의 감소없이 무기 산화물 미립자의 유기용매 분산체를 고수율로 제조할 수 있다.According to the present invention, an organic solvent dispersion of the inorganic oxide fine particles can be produced in high yield without a decrease in monodispersity by a simple process.

Description

무기 산화물 미립자의 유기용매 단분산체의 제조방법Method for producing organic solvent monodispersion of inorganic oxide fine particles

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

Claims (3)

Na2O·nSiO2, mH20(1≤n≤3,5≤m≤7)를 비극성 유기용매에 용해하고, 상기 용액에 비이온성 계면활성제를 첨가하여 고속교반기로 교반한 후, 생성된 슬러리를 0. 1 내지 5NHCl에 첨가하고 교반하여 반응을 완료한 후, 제조된 단분산 산화물 미립자를 물로 세척하여 얻어진 분산체 수용액을 유기용매로 치환하는 것임을 특징으로 하는 무기 산화물 미립자의 유기용매 분산체의 제조방법.Na 2 O.nSiO 2 , mH 2 0 (1 ≦ n ≦ 3,5 ≦ m ≦ 7) were dissolved in a nonpolar organic solvent, a nonionic surfactant was added to the solution, stirred with a high speed stirrer, and then produced. After the slurry is added to 0.1-5 NHCl and stirred to complete the reaction, the organic solvent dispersion of the inorganic oxide fine particles is characterized by replacing the aqueous solution of the dispersion obtained by washing the prepared monodisperse oxide fine particles with water. Manufacturing method. 제1항에 있어서, 상기 비이온성 계면활성제가 탄소원자수가 8 내지 22인 지방산 소르비탄 에스테르 화합물 또는 1 내지 40M의 에틸렌 옥사이드가 부가된 탄소원자수가 8 내지 22인 지방산 소르비탄 에스테르 화합물이고, 여기에서 지방산은 단체이거나 모노, 디 트리지방산의 혼합물인 것인 무기 산화물 미립자의 유기용매 분산체의 제조방법.The nonionic surfactant according to claim 1, wherein the nonionic surfactant is a fatty acid sorbitan ester compound having 8 to 22 carbon atoms or a fatty acid sorbitan ester compound having 8 to 22 carbon atoms to which 1 to 40 M of ethylene oxide is added. A method for producing an organic solvent dispersion of inorganic oxide fine particles, wherein the fatty acids are single or a mixture of mono and ditrifatty acids. 제1항에 있어서, 상기 비극성 유기용매가 방향족 유기용매 또는 지방족 유기용매로 이루어진 군에서 선택되는 것인 무기 산화물 미립자의 유기용매 분산체의 제조방법.The method of claim 1, wherein the nonpolar organic solvent is selected from the group consisting of aromatic organic solvents or aliphatic organic solvents. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950034237A 1995-10-06 1995-10-06 A process for preparing mono-dispersed inorganic oxide particles in organic solvent KR0146753B1 (en)

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KR1019950034237A KR0146753B1 (en) 1995-10-06 1995-10-06 A process for preparing mono-dispersed inorganic oxide particles in organic solvent

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Application Number Priority Date Filing Date Title
KR1019950034237A KR0146753B1 (en) 1995-10-06 1995-10-06 A process for preparing mono-dispersed inorganic oxide particles in organic solvent

Publications (2)

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KR970020941A true KR970020941A (en) 1997-05-28
KR0146753B1 KR0146753B1 (en) 1998-08-17

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