Improving the hydration resistance of CaO particle in manufacturing and application of free CaO-containing materials has practical significance. In this study, CaO granules was made from Ca(OH)2 particles, which were fabricated by the granulation method. The results showed that the hydration resistance of the CaO granules which was prepared under 1700 r min−1 was the best, the CaO granules was sintered well in calcination process, the shell of CaO granules was relatively dense, which improves the hydration resistance of CaO granules, and the rate of hydration weight increment was 0.58% after placed in the air for 20 days under a temperature of 10–14°C and a relative humidity of 57–81%.
SoltaniehM, PayandehY.Relationship between oxygen chemical potential and steel cleanliness. J Iron Steel Res Int. 2005;12(5):28–32.
5.
LiZ, ZhangS, LeeWE.Improving the hydration resistance of lime-based refractory materials. Int Mater Rev. 2008;53(1):1–20. doi: 10.1179/174328007X212508
6.
ZhaoR.Densification and properties of CaO refractory with Fe2O3 nanoparticles. Refract & Lim. 2017;42(3):24–28.
7.
ChenM, WangN, YuJ, Effect of porosity on carbonation and hydration resistance of CaO materials. J Eur Ceram Soc. 2007;27:1953–1959. doi: 10.1016/j.jeurceramsoc.2006.05.101
8.
ChenG, LiB, ZhangH, On the modification of hydration resistance of CaO with ZrO2 additive. Int J Appl Ceram Technol. 2016;13(6):1173–1181. doi: 10.1111/ijac.12606
9.
ChenS, TianL, LiG, MgO–CaO refractories. Beijing: Metallurgical Industry Press; 2012.
10.
MaY, YinH, ShiX, Advances in research on water resistance of free calcium oxide refractory materials. Mater Rev. 2009;23:89–93.
