Method for preparing microcrystalline jade plate by phosphorus slag

Abstract

The invention provides a method for preparing a microcrystalline jade plate by phosphorus slag, comprising the following steps: blending materials: mixing an addictive with a clarifying agent to form a uniform auxiliary mixed material; melting: adding the auxiliary mixed material to the molten phosphorus slag to obtain molten glass by melting, performing heat preservation, homogenizing and clarifying the molten glass to obtain molten high-temperature glass melt; molding: molding the high-temperature glass melt to obtain a formed base glass plate; crystallizing: transferring the formed glass plate to a crystallizing and annealing kiln for crystallizing and annealing; and finish machining: after the microcrystalline jade plate is delivered from the kiln, machining the glass plate to obtain a finished product of the microcrystalline jade plate. The microcrystalline jade plate obtained by the method has the advantages of wear resistance, corrosion resistance, high temperature resistance, no radiation, high utilization rate of the phosphorus slag, higher social benefit and higher economic benefit.

Description

technical field

[0001] The invention relates to the technical field of preparation of microcrystalline jade, in particular to a method for preparing microcrystalline jade slabs by using phosphorus slag. Background technique

[0002] Phosphorus slag is the industrial waste discharged during the production of yellow phosphorus by phosphate rock thermal method. For every 1 ton of yellow phosphorus produced, about 8-10 tons of phosphorus slag are produced. Based on my country's current yellow phosphorus production capacity, the annual discharge of phosphorus slag is more than 5 million tons, and it is increasing year by year. At present, the national discharge of phosphorus slag is about 6.8-8.5 million tons. Usually, the discharge of phosphorus slag is carried out by water quenching process, that is, the molten high-temperature phosphorus slag is water-quenched into phosphorus slag pellets. There are two disadvantages in this treatment method: (1) the phosphorus contained in th...