Process for producing high-purity olivine of fused magnesia

Abstract

A high-purity electrically-fused forsterite preparation method comprises the following steps: assistant is mixed with serpentite or olivine crude ore, the mixture is sent into a durable arc-melting furnace group, wherein the addition of the assistant accounts for 3%-12% of the crude ore mass, the arc is stricken for heating to the temperature of 1900-2600 DEG C, the solution is poured to a plurality of water-cooled crystal packs for cooling after 2-3 hours of heat preservation, and the high-purity electrically-fused forsterite is obtained after crystallization by the crystal packs. In the invention, durable arc-melting furnaces are adopted to finish the furnace smelting process, so that the furnace temperature of 1900-2600 DEG C can be obtained to achieve a good smelting effect; three dimensional traveling complex lines are adopted to finish the processes of material filling, material delivering and crystal pack turnover, so that automatic overthrowing and circular smelting can be realized, workstation of crystallization and turnover is easy to adjust and mass industrialized production can be conveniently realized; and an electric arc melting furnace group formed by connecting a plurality of durable electric arc melting furnaces in parallel as well as a plurality of cool water crystal packs are adopted, so that constant production can be realized, solution overthrowing time can be saved, and meanwhile, the difficulty of post selection and processing of products can be lowered.

Description

technical field [0001] The invention relates to a method for preparing forsterite, in particular to a method for preparing high-purity forsterite through an electric arc furnace. Background technique [0002] Forsterite refractory smelting technology currently has different process routes. Generally, there are problems of small scale and low degree of industrial continuous production. The purity of the obtained forsterite is not high, and the production quantity cannot meet the growing market demand. Contents of the invention [0003] The purpose of the present invention is to provide a method capable of realizing large-scale continuous production and obtaining high-purity forsterite through a refractory electric arc furnace. [0004] The purpose of the present invention is achieved in this way: a preparation method of high-purity fused forsterite, mixing serpentine or olivine raw ore with additives and sending them into electric arc smelting furnaces, the amount of additi...

AI Technical Summary

Problems solved by technology

[0002] Forsterite refractory smelting technology currently has different process routes. Generally, there are problems of small scale and low degree of industrial continuous production. The purity of the obtained forsterite is not high, and the production quantity cannot meet the growing market demand.