Experimental study on separation of valuable refractory aggregate from investment casting ceramic shell waste |
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| Affiliation: | 1. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;2. Hanchuan Shijin Technology Co., Ltd., Hanchuan 432300, Hubei, China |
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| Abstract: | In the present study, a processing technique for recycling investment casting ceramic shel waste was proposed to separate valuable refractory aggregate zircon sand. The microstructure and phase constituents of the shel waste and separation process were investigated. The results show that the characteristics of microstructure and phase constituents of the shel waste can meet the conditions for preferentialy separating zircon sand, and zircon sand can be separated by gravity separation on a shaking table. The separated zircon sand has good shape and high purity, and can be used for the production of castings and other applications. |
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| Keywords: | investment casting ceramic shel waste zircon sand magnetic separation gravity separation |
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