High-performance aluminosilicate glass primarily made from red mud and preparation method of high-performance aluminosilicate glass

Abstract

The invention discloses a high-performance aluminosilicate glass primarily made from red mud and a preparation method of the high-performance aluminosilicate glass and belongs to the crossing field of waste disposal and inorganic metal materials. Red mud, namely the waste from industrial production of Al2O3, causes water pollution, soil alkalinization and high land occupation and the like. Since red mud is added into industrial raw materials, red mud is utilized effectively, harms to production and life are reduced; and further, on the basis of advantages of content such as Fe2O3, Na2O, K2O and the like of the red mud, performance of aluminosilicate glass can be improved, and particularly, chemical stability of the aluminosilicate glass is much superior to that of conventional E-glass, AR-glass and the like. The aluminosilicate glass is prepared from, by weight, 14.2-27.4% of Bayer-process red mud, 11.9-17.5% of dolomite, 26.3-47.6% of pyrophyllite, 23.8-26.3% of quartz powder and 2-2.5% of fluorite. As all of raw materials of the aluminosilicate glass, except for the red mud, are of industrial grade, the aluminosilicate glass can be applied to industrial production well.

Description

technical field [0001] The invention relates to a high-performance aluminosilicate glass with red mud as the main raw material and a preparation method thereof, fully utilizes the red mud of industrial waste, and belongs to the field of material technology. The high performance of the aluminosilicate glass, especially high temperature resistance, chemical corrosion resistance, low density and other properties, can be used in construction, composite materials, glass fiber and other fields. Background technique [0002] Red mud is the waste residue produced during the industrial production of alumina. The Bayer red mud is called the Bayer red mud because the production of alumina uses the Bayer method. As a big country producing alumina, our country discharges a large amount of red mud every year, all of which are stored in the open air, occupying a large amount of cultivated land and farmland. More and more red mud pollution and stacking problems have caused huge damage and ...

AI Technical Summary

Problems solved by technology

[0004] Compared with the more mature glass fiber glass on the market, such as E glass fiber, AR glass fiber, etc., because it contains B 2 o 3 and other ingredients, resulting in poor water resistance and acid resistance, which has become a criticism in practical applications

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