An apparatus and method for measuring adsorption/desorption
    1.
    发明公开
    An apparatus and method for measuring adsorption/desorption 失效
    Vorrichtung und Verfahren zur Messung der Adsorption oder der Desorption。

    公开(公告)号:EP0444246A2

    公开(公告)日:1991-09-04

    申请号:EP90121237.3

    申请日:1990-11-07

    IPC分类号: G01N15/08

    CPC分类号: G01N15/0893

    摘要: The actual flow rate of gas to the solid-sample container or to the gas reservoir can be precisely obtained according to variances in the pressure of the gas reservoir without directly adjusting the flow rate precisely. The volume of gas not adsorbed in the sample container can be obtained from the pressure in the sample container. The adsorption can easily be determined from the difference between the flow rate of gas and the volume of gas not adsorbed in the sample container. Even if the flow rate fluctuates, the adsorption can precisely be obtained. The desorption can easily be obtained in the same way. Gas is exhausted from the gas reservoir in advance. When desorbed gas in the sample container is continuously exhausted to the gas reservoir, the pressure in the gas reservoir is measured. Since the adsorption and desorption are thus precisely obtained, the adsorption or desorption isotherm can be drawn by plotting the pressure at each point of time and the corresponding adsorption or desorption of the solid sample. Consequently, the surface area, pore diameter distribution, pore volume and the like of the solid sample can precisely be calculated.

    摘要翻译: 可以根据气藏的压力差异精确地获得固体样品容器或储气罐的气体的实际流量,而不需要精确地调整流速。 未吸收在样品容器中的气体的体积可以从样品容器中的压力获得。 吸附可以容易地根据气体的流量与未吸附在样品容器中的气体的体积之差来确定。 即使流量波动,也能够精确地获得吸附。 解吸可以很容易地以相同的方式获得。 预先从气藏中排出气体。 当样品容器中的解吸气体连续排出到储气器时,测量气体存储器中的压力。 因为这样精确地获得了吸附和解吸,因此可以通过绘制每个时间点的压力和固体样品的相应吸附或解吸来绘制吸附或解吸附等温线。 因此,可以精确地计算固体样品的表面积,孔径分布,孔体积等。

    Silicia gels for controlling insect pests
    3.
    发明公开
    Silicia gels for controlling insect pests 失效
    SILICIA用于控制护肤品的凝胶

    公开(公告)号:EP0337212A3

    公开(公告)日:1991-08-14

    申请号:EP89105695.4

    申请日:1989-03-31

    IPC分类号: A01N59/00

    CPC分类号: A01N59/00

    摘要: Specific inorganic silica gels are used as an adsorbent drying agent for controlling insect pests in a structure. When it is too humid in the structure, the silica gels adsorb moisture. On the other hand, when it is too dry in the structure, the silica gels supply moisture. The silica gels thus create the environment where household insect pests cannot survive. Moreover, by exposing invading insect pests to silica-gel particles, the pests' tissues are physiologically decayed, and the population density of the insect pests is decreased. Insect pests in the structure can be thus controlled using the silica gels.

    Silicia gels for controlling insect pests
    4.
    发明公开
    Silicia gels for controlling insect pests 失效
    Silikagele zurInsektenbekämpfung。

    公开(公告)号:EP0337212A2

    公开(公告)日:1989-10-18

    申请号:EP89105695.4

    申请日:1989-03-31

    IPC分类号: A01N59/00

    CPC分类号: A01N59/00

    摘要: Specific inorganic silica gels are used as an adsorbent drying agent for controlling insect pests in a structure. When it is too humid in the structure, the silica gels adsorb moisture. On the other hand, when it is too dry in the structure, the silica gels supply moisture. The silica gels thus create the environment where household insect pests cannot survive. Moreover, by exposing invading insect pests to silica-gel particles, the pests' tissues are physiologically decayed, and the population density of the insect pests is decreased. Insect pests in the structure can be thus controlled using the silica gels.

    摘要翻译: 特定的无机硅胶被用作用于控制结构中的害虫的吸附剂干燥剂。 当结构太湿时,硅胶吸附水分。 另一方面,当结构太干燥时,硅胶会提供水分。 因此,硅胶产生了家庭虫害不能生存的环境。 此外,通过将入侵害虫暴露于硅胶颗粒,害虫组织生理衰变,虫害的群体密度降低。 因此可以使用硅胶来控制结构中的昆虫害虫。

    PROCESS FOR PRODUCING SILICA GEL
    9.
    发明公开
    PROCESS FOR PRODUCING SILICA GEL 失效
    VERFAHREN ZUR HERSTELLUNG EINESKIESELSÄUREGELS。

    公开(公告)号:EP0505583A1

    公开(公告)日:1992-09-30

    申请号:EP91919289.8

    申请日:1991-10-11

    IPC分类号: C01B33/152

    CPC分类号: C01B33/152

    摘要: A process for producing scaly or acicular silica gel having relatively large and controlled pore volume and specific surface, which comprises freezing silicic acid sol to deposit the crystallized sol in a gap between the faces of solvent crystals to thereby form frozen scaly or acicular silica gel, thawing the frozen silica hydrogel, conducting hydrothermal polymerization thereof, and drying the resultant hydrogel. This process is advantageous in that the shape control is possible with inexpensive silica sol by controlling the gelation time of the sol, that freeze drying is unnecessary, and that the physical properties of the silica gel can be controlled by conducting thawing, water washing and hydrothermal polymerization after freezing.

    摘要翻译: 一种制备鳞片状或针状硅胶的方法,其具有相对较大且受控的孔体积和比表面积,其包括冷冻硅酸溶胶以将结晶的溶胶沉积在溶剂晶体的表面之间的间隙中,从而形成冷冻的鳞片状或针状硅胶, 解冻冷冻硅胶水凝胶,进行水热聚合,并干燥所得水凝胶。 该方法的优点在于,通过控制溶胶的凝胶化时间,廉价的硅溶胶可以进行形状控制,不需要冷冻干燥,并且可以通过解冻,水洗和水热来控制硅胶的物理性能 冷冻后聚合。