Energy-saving cordierite zircon multiphase material and preparation method thereof

Abstract

The invention relates to an energy-saving cordierite zircon multiphase material and a preparation method thereof. According to the technical scheme, firstly, 40-60 wt% of zircon tailings, 35-50 wt% offine talc powder and 5-15 wt% of fine aluminium oxide powder are taken as raw materials, the raw materials of 40-50 wt% of water, 2-4 wt% of polyvinyl alcohol and 0.4-0.8 wt% of fine cerium oxide powder are additionally added, mixing is carried out, and ball-milling is carried out for 6-8 hours to obtain pulp; then the pup is subjected to spray granulation to obtain granular powder, then the granular powder is press-formed, heat preservation is carried out for 8-10 hours at 1350-1420 DEG C, natural cooling is carried out, and the energy-saving cordierite zircon multiphase material is obtained. The preparation method of the energy-saving cordierite zircon multiphase material has the advantages that the production cost is low, the method is green and environmentally friendly, and the scaleproduction is facilitated; the prepared energy-saving cordierite zircon multiphase material not only has high strength, an obvious energy-saving effect and good thermal shock resistance, but also hasa wide application range.

Description

technical field [0001] The invention belongs to the technical field of cordierite zircon composite phase materials. Specifically, it relates to an energy-saving cordierite zircon composite phase material and a preparation method thereof. Background technique [0002] Tailings are one of the products of sorting operations in beneficiation, in which the content of target components is too low to be used for production. In fact, tailings are not completely useless waste and often contain components that can be used for other purposes. Realizing the resource utilization of tailings is not only to improve the utilization efficiency of mineral resources, but also an effective way to protect the ecological environment. Cordierite has extremely low thermal expansion coefficient, excellent shock stability and good chemical stability, and is widely used in high temperature kiln furniture and other fields. [0003] "A method of synthesizing cordierite from solid waste" (ZL2008102392...

AI Technical Summary

Problems solved by technology

[0003] "A method for synthesizing cordierite with solid waste" (ZL200810239264.7) patented technology, although coal gangue is used to synthesize cordierite in this technology, the carbon in coal gangue is oxidized at high temperature and forms a large number of holes, which reduces the strength of the product And cause uneven temperature distribution inside the green body; "A cordierite material prepared by using rare earth tailings and its manufacturing method" (ZL201210491530.1) patent technology, although this technology uses rare earth tailings to prepare cordierite, but the rare earth tailings The impact of radioactive elements in sand on the safety of personnel on site is difficult to predict

"Method for preparing cordierite ceramics from serpentine tailings" (ZL201210076854.9) patented technology, although this technology uses kaolin as the main raw material to synthesize cordierite, but a large number of pores formed by kaolin burning out affect the densification and also affect the inner body of the green body. Uniformity of temperature distribution

"Mulite lightweight insulation brick based on kyanite tailings and its preparation method" (ZL201410132749.1) patent technology, although this technology uses kyanite tailings containing zirconia as the main raw material to produce mullite lightweight Insulation products, but the introduction of a large amount of kyanite can easily cause cracks on the surface of the green body during high temperature treatment

"Aluminosilicate ceramic fiber based on kyanite tailings and its preparation method" (ZL201410547680.9) patent technology, although this technology uses kyanite tailings, carbonic acid composite rare earth and vanadium pentoxide as raw materials to prepare aluminum silicate Ceramic fiber, but high energy consumption and easy to cause environmental pollution

"Energy-saving lightweight cordierite-mullite kiln furniture material, kiln furniture and its preparation method" (ZL201310106546.0) patented technology, although this technology can reduce the product body density through the burning of wood powder, but the wood powder burning Emissions of process gases such as carbon dioxide are harmful to the environment

"A zirconium-containing cordierite composite material and its preparation method" (ZL201410522759.6) and "An environmentally friendly cordierite-mullite kiln furniture and its production method" (CN201711437792.9) patented technologies, although abandoned Cordierite-zircon composite materials and cordierite-mullite kiln furniture were prepared from molding sand and waste ceramics respectively, but the metal and metal oxides brought in during the casting process adhered to the waste molding sand, and waste ceramics contained a large amount of potassium oxide. It leads to the increase of liquid phase during high temperature treatment, reduces the content of cordierite crystal phase, and weakens the high temperature mechanical properties