METHOD FOR TREATING PARTICULATE MATERIAL
    2.
    发明申请
    METHOD FOR TREATING PARTICULATE MATERIAL 审中-公开
    处理颗粒材料的方法

    公开(公告)号:WO2009138857A1

    公开(公告)日:2009-11-19

    申请号:PCT/IB2009/005579

    申请日:2009-05-08

    Abstract: This invention describes the use of a fluidized bed reactor in the carbonation of a solid, inorganic and alkaline particulate material which contains alkaline metal salts. It also describes a method for treating cement kiln dust (CKD) containing alkaline metal salts. The treatment method comprises two steps: (a) a hydration step; and (b) a carbonation step, wherein the carbonation step is carried out in a fluidized bed reactor. In a preferred aspect of the present invention, the treated CKD is used as an aggregate in sulfur polymer concrete (SPC). Accordingly, the present invention also provides a method for producing SPC, which method comprises heating and mixing treated CKD of the present invention, elemental sulfur and modified sulfur to produce a mixture. The SPC can be used as a barrier to restrict permeation of matter, e.g. in a containment construction for storing matter such as hazardous waste.

    Abstract translation: 本发明描述了流化床反应器在含有碱金属盐的固体,无机和碱性颗粒材料的碳酸化中的用途。 它还描述了一种处理含碱金属盐的水泥窑灰(CKD)的方法。 处理方法包括两个步骤:(a)水合步骤; 和(b)碳酸化步骤,其中碳酸化步骤在流化床反应器中进行。 在本发明的优选方面,处理的CKD用作硫聚合物混凝土(SPC)中的骨料。 因此,本发明还提供了一种生产SPC的方法,该方法包括加热和混合本发明的经处理的CKD,元素硫和改性硫以产生混合物。 SPC可以用作限制物质渗透的屏障,例如 在用于储存诸如危险废物的物质的遏制结构中。

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