Mine tailing ceramic body and preparation method thereof

Abstract

The invention discloses a mine tailing ceramic body. The ceramic body comprises the following raw materials in percentage by mass: 40-60% of mine tailings, 15-35% of kaoline, 5-15% of bauxite, 10-15%of potassium feldspar, 3-8% of magnesia mud and 0-5% of bentonite. The ceramic body prepared by optimizing a formula and a preparation process has good physical property, has the water absorption rateof smaller than or equal to 0.5% and the bending strength of 35-45MPa and is capable of meeting the requirements of relevant product performances when being applied to production of building ceramics, sanitary ceramics and the like. Meanwhile, the invention discloses a preparation method of the mine tailing ceramic body. Mine tailings are recycled by using the method, so that natural resources are effectively saved, the comprehensive utilization of a mine tailing resource is promoted, and the natural resources are protected.

Description

technical field [0001] The invention belongs to the technical field of mine waste application, and in particular relates to a mine tailings ceramic body and a preparation method thereof. Background technique [0002] With the rapid development of my country's economic construction and the improvement of people's requirements for the living environment, the demand for interior decoration materials, especially ceramic wall and floor tiles, is increasing. Relevant data show that the annual output of my country's ceramic wall and floor tiles accounts for 50% of the world's total output. More than 60%, a large amount of high-quality ceramic raw materials are consumed, and the cost of raw materials required by traditional production formulas is getting higher and higher. It is imminent to seek effective raw materials to replace traditional production raw materials. [0003] Mine tailings are waste tailings produced in the mining process. my country is rich in mineral resources, and...

AI Technical Summary

Problems solved by technology

Most mine tailings have a low recycling rate due to their unstable quality, high impurities, small processing scale, and secondary pollution in application. At present, the main processing method is damming and stockpiling, which occupies a large amount of cultivated land. It has caused serious pollution to the human living environment, and some tailings ponds have even collapsed causing casualties. The disposal of mine tailings needs to be solved urgently

[0004] Gold tailings and tin tailings are mine tailings produced when mining gold and tin mines respectively, and their main components are SiO 2 , Fe 2 o 3 、Al 2 o 3 , where SiO 2 The content of Al can generally reach more than 70%, which can be used as the siliceous material in the raw material of the ceramic body, and at the same time provides a certain amount of Al 2 o 3 , as the raw material of the ceramic body, it can effectively ensure that the preparation of the ceramic body has good mechanical properties. However, due to the complexity and variety of raw materials for the preparation of ceramic materials, there is no relatively mature formula when using mine tailings to prepare ceramic materials, and most of them have water absorption. High, rough body surface, low sintering efficiency and other problems, it is difficult to popularize and apply the ceramic materials prepared by using this kind of mine tailings

Images