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Abstract For the sake of weakening the influence of crystal transformation of SiO2 in the cooling process on the properties of proppants, a new research method was explored by preparing… Click to show full abstract
Abstract For the sake of weakening the influence of crystal transformation of SiO2 in the cooling process on the properties of proppants, a new research method was explored by preparing the high silicon proppant from low grade bauxite and solid waste fly ash. The effects of chemical compositions, sintering temperature and holding time on the properties of proppants were studied in this paper. The results showed the bulk density of proppants was 1.352 g cm−3, the performances were 4.2% of acid solubility and 5.3% of breakage ratio under 35 MPa when the sintering temperature was 1240 °C for 20 min. And the breakage ratio satisfied the requirement of 5K grade in the standard of SY/T5108-2014 and ISO13503-2.
Journal Title: Materials Chemistry and Physics
Year Published: 2019
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