Application of active silica fume

Abstract

The invention discloses application of active silica fume as rubber and white carbon black which is an engineering plastic additive. Based on researches of the invention, silica fume collected by using smoke and dust separation and purification power complete equipment has a smaller granularity of 0.10-0.255mu m and an active index higher than 120%, achieves the activity of natural cinerite and materialization indexes similar to fumed silica (white carbon black), but has cost far lower than that of the white carbon black produced specifically. In addition, proved by the experiments of Shanghai Rubber Industry Institute, after the white carbon black in natural rubber and regenerated rubber is replaced by the active silica fume, the elongation, tear resistance and death resistance of the rubber can be improved greatly and the quality of the rubber can be guaranteed. The active silica fume can replace the function of the white carbon black in the rubber and engineering plastics, can replace powdery mineral filler ground by the traditional mechanical power, improve the cost performance of materials, and reduce the cost of materials.

Description

technical field [0001] The invention relates to an application of active silicon dioxide micropowder, which belongs to the patent for new use of active silica micropowder. Background technique [0002] The smelting of ferroalloy is to reduce quartz ore to metal silicon and ferrosilicon by electric arc furnace and submerged electric furnace at a high temperature of 2000 ° C. During the smelting process, about 10-15% of silicon vapor enters the flue and is released from The chimney is discharged into the atmosphere, and the exhausted silicon vapor is purified by flue gas, and the dust separation and purification powder is collected by a complete set of equipment to obtain active silica powder. The existing exhaust silica powder is mostly treated as waste flue gas dust. failed to be effectively utilized. However, with the advancement and development of science and technology, in the process of environmental protection and treatment of high energy consumption flue gas emissions...

AI Technical Summary

Problems solved by technology

However, with the advancement and development of science and technology, in the process of environmental protection and treatment of high energy consumption flue gas emissions, it is found that silica micropowder in fume and dust wastes discharged unorganized can be used as mineral admixtures for making concrete and refractory materials, replacing The mechanically ground mineral powder makes effective use of the waste silica powder, but the above-mentioned utilization has the problem of low added value