A glass-ceramic with coal gangue and rice husk ash as main raw materials and its preparation method
A technology of glass-ceramics and main raw materials, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problem of complex raw material treatment process operations, affecting the transparency and gloss of glass-ceramics, and the lack of resource utilization of iron oxide and other issues, to achieve the effect of promoting healthy ecological development, simple composition, and cost reduction
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[0039] Method for preparing rice husky ash:
[0040] In the dried rice husk, the volume ratio of 10% nitric acid is introduced into the dried rice husk, which is placed in a constant temperature water bath of 100 ° C, which makes nitric acid with the rice shell with the rice shell in the heating process to heat the temperature to 650. ° C insulation 9h was prepared by rice sheave ash.
[0041] In this example, the solution of nitric acid and nitric acid is used in the volume ratio: the small amount of metal impurity elements contained in the rice husk such as Ca, Na, K, Mg, Fe, etc. 2 The purity of the particles and destroys the tissue structure of the rice husk, so that the rice husk is more advanced in the same time; those skilled in the art should understand that acid treatment can also be used with hydrochloric acid, sulfuric acid.
Embodiment 1
[0043] (1) ingredients
[0044] Coal gangue 28.5g, rice shell 4.20g, sodium carbonate 4.3g, calcium carbonate, 2.5 g of magnesium oxide, and titanium dioxide 3g.
[0045] (2) Experimental process
[0046] A. A full uniform mixing is placed in a high-temperature furnace of the rigidated jade crucible, heating to 900 ° C for 30 min, so that the volatilization components in the mixing material are as degrees, reduce the formation of glass bubbles, and then continue to heat up Melting for 2 hours at a high temperature of 1450 ° C, a glass melting body is obtained;
[0047] B. The glass melt obtained in the above is immediately placed in cold water for quenching to obtain base glass particles, and then dry the base glass particles, add the ball mill, over 200 mesh, and obtain the base glass powder.
[0048] C. The basic glass powder obtained above is uniformly mixed with polyvinyl alcohol, wherein the addition of polyvinyl alcohols comprises 2% of the base glass powder weight, and the ...
Embodiment 2
[0053] (1) ingredients
[0054] 28.70 g of coal gangue, 4.5g of rice husk, 4.1g of sodium carbonate, 7.2 g of calcium carbonate, 2.5 g of magnesium oxide, 3g of titanium dioxide;
[0055] (2) Experimental process
[0056] A. A full uniform mixing of the ingredients is placed in a high temperature furnace of the bristles, heating to 900 ° C for 30 min, so that the volatilization components in the mixture are as scattered as possible, and the formation of glass liquid bubbles is reduced. Then, continued to heat up for 2 hours at a high temperature of 1400 ° C, and the glass melting body was obtained;
[0057] B. The glass melt obtained in the above is immediately placed in cold water for quenching to obtain basal glass particles. The base glass particles are then dried, and the ball mill is added, and the 200 mesh screen is added to obtain the base glass powder.
[0058] C. The basic glass powder obtained above is uniformly mixed with polyvinyl alcohol, wherein the addition of polyv...
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