Luminescent ceramic prepared from magnesium-rich metallurgical nickel slag and preparation method of luminescent ceramic

Abstract

The invention provides luminescent ceramic prepared from magnesium-rich metallurgical nickel slag and a preparation method of the luminescent ceramic. The luminescent ceramic is prepared from raw materials including the magnesium-rich metallurgical nickel slag, alumina, silica and europium oxide. The luminescent ceramic prepared from the magnesium-rich metallurgical nickel slag can continuously emit light for 24 h in the dark in a visual brightness range of human eyes after being irradiated by natural light or other light sources for a short time; the luminescent ceramic is relatively high in compactness and excellent in mechanical property, the compressive strength can reach 68 MPa, and the bending strength can reach 150 MPa. The luminescent ceramic can be applied to fields of emergency signs of public facilities, home decoration, building energy saving and the like. With the adoption of the preparation method of the luminescent ceramic prepared from the magnesium-rich metallurgical nickel slag, the utilization rate of the magnesium-rich metallurgical nickel slag is up to 60wt%, the firing temperature of the ceramic is as low as 1,150 DEG C, no rare-earth luminescent materials are required to be added, the ceramic is formed through firing once, and the method has the advantages that the method is convenient to operate, the utilization rate of the nickel slag is high and the like.

Description

technical field [0001] The invention relates to the field of inorganic non-metallic functional ceramic materials, in particular to a luminescent ceramic prepared by utilizing magnesium-rich metallurgical nickel slag and a preparation method thereof. Background technique [0002] With the development of society and economy, the types and quantities of pollutants are increasing. Magnesium-rich metallurgical nickel slag is a kind of metallurgical industrial waste, which refers to an industrial waste slag discharged during the nickel metal smelting process. Its annual output is large and its utilization rate is high. The waste slag piled up year by year not only occupies the land, but also causes serious pollution to the surrounding environment of the slag yard, and at the same time causes a waste of resources. my country's nickel production has grown rapidly in recent years and the output of nickel slag is huge. In 2014, the annual output of nickel and its alloys in major port ...

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Problems solved by technology

[0004] The first purpose of the present invention is to provide a luminescent ceramic prepared with magnesium-rich metallurgical nickel slag to solve the problem of solid waste utilization of magnesium-rich metallurgical nickel slag and the disadvantage of insufficient high temperature resistance of rare earth luminescent materials in the one-time firing molding technology of luminescent ceramics , the luminescent ceramics prepared by using magnesium-rich metallurgical nickel slag, after being irradiated by natural light or other light sources for a short time, can continue to emit light in the dark for 24 hours within the visible brightness range of the human eye, and have high density, mechanical properties Excellent performance, compressive strength can reach 68MPa, bending strength can reach 150MPa, etc.

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