Recycling and Characterisation of Amorphous Silica from Zr-Containing Silica Residue

Abstract:

Preparation of amorphous silica using Zr-containing silica residue and the properties of the product have been studied. The results show that the separation of amorphous silica from Zr component can be realized using a process flow that pulping, grinding, washing and solid-liquid separation. The main constituent of the product is amorphous state, the content of SiO₂ in the product comes up to 94.3%, the content of ZrO₂ comes up to 7.48%, the grain size is 2-3 μm, the surface area is 494.3 m²/g. The quality of the recovery can meet the requirement of white carbon black standards ISO 5794-1 and HG/T 3061.

• Periodical: Advanced Materials Research (Volumes 194-196)
• Pages: 2109-2114
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.194-196.2109
• Online since: February 2011
• Authors: Xiao Jing Zhang, Hao Ding, Bai Kun Wang
• Keywords: Amorphous Silica, White Carbon Black, Zr-Containing Silica Residue

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