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Recycling of the product of thermal inertization of cement-asbestos for various industrial applications

Gualtieri, Alessandro F ; Giacobbe, Carlotta ; Sardisco, Lorenza ; Saraceno, Michele ; Gualtieri, Magdalena Lassinantti ; Lusvardi, Gigliola ; Cavenati, Cinzia ; Zanatto, Ivano

Waste management (New York, N.Y.), January 2011, Vol.31(1), pp.91-100 [Tạp chí có phản biện]

E-ISSN: 1879-2456 ; PMID: 20708915 Version:1 ; DOI: 10.1016/j.wasman.2010.07.006

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  • Nhan đề:
    Recycling of the product of thermal inertization of cement-asbestos for various industrial applications
  • Tác giả: Gualtieri, Alessandro F ; Giacobbe, Carlotta ; Sardisco, Lorenza ; Saraceno, Michele ; Gualtieri, Magdalena Lassinantti ; Lusvardi, Gigliola ; Cavenati, Cinzia ; Zanatto, Ivano
  • Chủ đề: Ceramics ; Recycling ; Asbestos -- Chemistry ; Construction Materials -- Analysis ; Waste Management -- Methods
  • Là 1 phần của: Waste management (New York, N.Y.), January 2011, Vol.31(1), pp.91-100
  • Mô tả: Recycling of secondary raw materials is a priority of waste handling in the countries of the European community. A potentially important secondary raw material is the product of the thermal transformation of cement-asbestos, produced by prolonged annealing at 1200-1300 °C. The product is chemically comparable to a Mg-rich clinker. Previous work has assured the reliability of the transformation process. The current challenge is to find potential applications as secondary raw material. Recycling of thermally treated asbestos-containing material (named KRY·AS) in traditional ceramics has already been studied with successful results. The results presented here are the outcome of a long termed project started in 2005 and devoted to the recycling of this secondary raw materials in various industrial applications. KRY·AS can be added in medium-high percentages (10-40 wt%) to commercial mixtures for the production of clay bricks, rock-wool glasses for insulation as well as Ca-based frits and glass-ceramics for the production of ceramic tiles. The secondary raw material was also used for the synthesis of two ceramic pigments; a green uvarovite-based pigment [Ca(3)Cr(2)(SiO(4))(3)] and a pink malayaite-based pigment [Ca(Sn,Cr)SiO(5)]. The latter is especially interesting as a substitute for cadmium-based pigments. This work also shows that KRY·AS can replace standard fillers in polypropylene plastics without altering the properties of the final product. For each application, a description and relevant results are presented and discussed.
  • Ngôn ngữ: English
  • Số nhận dạng: E-ISSN: 1879-2456 ; PMID: 20708915 Version:1 ; DOI: 10.1016/j.wasman.2010.07.006

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