Consolidation to Bulk Ceramic Bodies from Oyster Shell Powder
| Autor: | Hyun-Kwuon Lee, Jae Hong Min, Kyeong-Sik Cho |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Oyster Materials science Calcium hydroxide biology Carbonation Metallurgy 02 engineering and technology 021001 nanoscience & nanotechnology law.invention 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology Calcium carbonate chemistry law visual_art biology.animal visual_art.visual_art_medium Calcination Ceramic 0210 nano-technology Porosity Calcium oxide |
| Zdroj: | Journal of Korean Powder Metallurgy Institute. 23:221-227 |
| ISSN: | 2287-8173 1225-7591 |
| Popis: | Waste oyster shells create several serious problems; however, only some parts of them are being utilized currently. The ideal solution would be to convert the waste shells into a product that is both environmentally beneficial and economically viable. An experimental study is carried out to investigate the recycling possibilities for oyster shell waste. Bulk ceramic bodies are produced from the oyster shell powder in three sequential processes. First, the shell powder is calcined to form calcium oxide CaO, which is then slaked by a slaking reaction with water to produce calcium hydroxide . Then, calcium hydroxide powder is formed by uniaxial pressing. Finally, the calcium hydroxide compact is reconverted to calcium carbonate via a carbonation reaction with carbon dioxide released from the shell powder bed during firing at . The bulk body obtained from waste oyster shells could be utilized as a marine structural porous material. |
| Databáze: | OpenAIRE |
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