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    • 9. 发明公开
    • 특정한 세공 크기 분포를 갖는 침강 실리카
    • 具有特殊孔径分布的预沉积硅
    • KR1020070029601A
    • 2007-03-14
    • KR1020060086935
    • 2006-09-08
    • 에보닉 데구사 게엠베하
    • 슈텐첼올레크루긴슬란트한스-데틀레프우를란트슈테판베마이어안드레
    • C01B33/12C01B33/193C01B33/18
    • C01B33/193B60C1/00B60C1/0016C01P2006/12C01P2006/17C01P2006/19C08K3/36C08L21/00
    • The precipitated silica with the particular pore sized distribution is provided to significantly increase the interaction of polymer/silica by largely increasing the surface activity. The aqueous solution of alkali metal silicate and/or alkaline earth metal silicate and/or the aqueous solution of organic base and/or inorganic base are used as the start filling materials. The alkali metal silicate and/or alkaline earth metal silicate and an oxidization agent are agitated at the temperature of 55 to 85 degrees centigrade until the viscosity is risen and supplied into the start filling materials. The achieved temperature is maintained and then the supply is stopped for 35 to 85 minutes. The alkali metal silicate and/or alkaline earth metal silicate and acidifier are supplied at the temperature of 55 to 85 degrees centigrade until the solid content is reached at 90 to 140g/l. The produced suspension is agitated for 1 to 120 minutes at the temperature of 80 to 98 degrees centigrade, then acidified with pH 2.5 to 5.0 by means of acidifier, filtered and dried.
    • 提供具有特定孔径分布的沉淀二氧化硅以通过大大增加表面活性来显着增加聚合物/二氧化硅的相互作用。 使用碱金属硅酸盐和/或碱土金属硅酸盐水溶液和/或有机碱和/或无机碱的水溶液作为起始填充材料。 将碱金属硅酸盐和/或碱土金属硅酸盐和氧化剂在55至85摄氏度的温度下搅拌直到粘度升高并供入起始填充材料。 保持所达到的温度,然后将供给停止35至85分钟。 在55至85摄氏度的温度下供应碱金属硅酸盐和/或碱土金属硅酸盐和酸化剂,直到固体含量达到90至140g / l。 将产生的悬浮液在80至98℃的温度下搅拌1至120分钟,然后通过酸化剂用pH 2.5至5.0酸化,过滤并干燥。