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    • 4. 发明公开
    • 실리카계 졸
    • 二氧化硅溶胶
    • KR1020100041744A
    • 2010-04-22
    • KR1020107000202
    • 2008-06-04
    • 아크조 노벨 엔.브이.
    • 퍼손미카엘한손프레디팔아니카비올라린달라스칼렌요아킴
    • C01B33/143C01B33/149D21H17/68
    • D21H17/74C01B33/1435C01B33/149D21H17/375D21H17/42D21H17/44D21H17/68D21H21/10D21H23/04
    • The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3 % by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g. The invention further relates to a process for producing the aqueous silica-based sol according to the invention, a sol containing silica-based particles obtainable by the process, use of the sol containing silica-based particles as a flocculating agent. The invention further relates to a process for producing paper in which the sol containing silica-based particles is used as a drainage and retention aid..
    • 本发明涉及含有至少约10的轴比和至少约600m 2 / g的比表面积的二氧化硅基颗粒的溶胶。 本发明还涉及一种含有轴比为至少约10和S值至多约25的二氧化硅基颗粒的溶胶。本发明还涉及一种含有至少约为(约)的轴比的二氧化硅基颗粒的溶胶 10,比表面积为至少约400m2 / g,其中二氧化硅基颗粒被表面改性。 本发明还涉及含有二氧化硅基颗粒的溶胶,所述颗粒具有至少50cP的粘度和至少约3重量%的二氧化硅含量,其中所述二氧化硅基颗粒的比表面积为至少约400m 2 / G。 本发明还涉及本发明的水性二氧化硅系溶胶的制造方法,含有二氧化硅系颗粒的溶胶,该方法可以使用含有二氧化硅系粒子的溶胶作为絮凝剂。 本发明还涉及一种生产纸的方法,其中含有二氧化硅基颗粒的溶胶用作排水和助留剂。