- 期刊
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Study on Preparation of Composite Materials of Montmorillonite
並列摘要
Granulated composite materials were prepared by using the mixture of montmorillonite, fly ash and certain amount of cementing agent. The granulated composite materials were used to treat waste water containing Cu^(2+). The mixture ratio of montmorillonite/fly ash, temperature of calcination and the amount of cementing agent were investigated. The experimental study results showed that the optimum technological conditions of preparing composite materials were as follows: the mixture ratio of montmorillonite and fly ash was 6:4; the calcination temperature was 450℃; the proportion of industrial starch used as an additive was 10%; the diameter of the granular was 1~2mm. Physical tests of granulated adsorption materials showed that the water adsorption capacity was 31.80%, the apparent porosity was 46.82%, the bulk density was 1.47 kg/m^3, the compressive strength was 5.28 MPa, and the surface area was 10.28 m^2/g. The composite adsorbent materials prepared under the above conditions exhibited high adsorptive performance.