Thermal insulating material and process for formation thereof
    67.
    发明公开
    Thermal insulating material and process for formation thereof 失效
    热绝缘材料及其形成方法

    公开(公告)号:EP0261926A3

    公开(公告)日:1989-03-22

    申请号:EP87308373.7

    申请日:1987-09-22

    申请人: White, Eugene M.

    发明人: White, Eugene M.

    IPC分类号: F16L59/02 C03C11/00 C04B20/06

    摘要: A thermal insulating material (10) comprises an expanded, shell-less silica-hyrate which has a small bubble structure (12) to enhance the thermal insulating characteristics of the material. The bubble structures (12), of which there are an agglomeration, have walls (14) each of which consists of an agglomeration of micro-bubbles. The material may be made in a fluidized bed (34) in a reactor (30) which is heated by a heat source (32). Steam is supplied to the fluidized bed (34) from a source (36) to provide a moist reaction environment in and above the bed (34). The bed (34) may comprise quartz sand and may be heated to a temperature of from 480°C to 595°C. A sodium silicate hydrate raw material is mixed in with the quartz sand and the expanded material, which is formed spontaneously, is collected.

    摘要翻译: 绝热材料(10)包括具有小气泡结构(12)的膨胀的无壳二氧化硅 - 捕获物,以增强材料的绝热特性。 气泡结构(12),其中有聚集体,具有壁(14),每个壁由微小气泡聚集而成。 该材料可以在由热源(32)加热的反应器(30)中的流化床(34)中制备。 蒸汽从源(36)供应到流化床(34),以在床(34)内和上方提供潮湿的反应环境。 床(34)可以包括石英砂,并且可以被加热到480℃至595℃的温度。将硅酸钠水合物原料与石英砂和自发形成的膨胀材料混合是 集。