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| Basic Research on Preparation of Pseudo-Boehmite from High-alumina Fly Ash with Seed Precipitation Method |
| Received:March 24, 2016 Revised:April 08, 2016 |
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| DOI：doi：10.3969/j.issn.1007-7545.2016.08.005 |
| KeyWord:high-alumina fly ash; seed precipitation; pseudo-boehmite; specific surface area; pore volume |
| Author | Institution |
| ZHANG Wei-guang |
东北大学 |
| ZHANT Ting-an |
东北大学 |
| FENG Wei |
东北大学 |
| LV Guo-zhi |
东北大学 |
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| Abstract: |
| Pseudo-boehmite product was prepared from high-alumina fly ash clinker by pre-desilicication, sintering with soda lime, dissolution, deep desilication and seed decomposition. Effect of parameters of seed decomposition on pseudo-boehmite was investigated. Pseudo-boehmite was characterized. The results show that pore volume and specific surface area of prepared pseudo-boehmite product can reach 0.829 1 cm3/g and 393.00 m2/g respectively, which are superior to those of macroporous pseudo-boehmite sample. Value-added utilization of high-alumina fly ash is achieved. |
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