Frac sand companies produce liquid at temperatures lower

Fired frac sand companies production is most important a process, have a great impact on their microstructure and macroscopic properties. After determining the ratio of the specimen, it will produce a fine powder in the firing process at a lower temperature between the liquid phase, but also to frac sand companies and petrochemical reactions corundum frac proppant crystal form transition occurs, and therefore the firing temperature must be controlled so that maintained within the optimum temperature range to ensure after the firing has excellent frac sand companies overall performance. If the temperature is too high there will be over-burning phenomenon, and ferric oxide (Fc203) of content. After the surface of a liquid phase, the oxygen diffusion to the center fracturing proppants of the block, this time occurs Fe203 = 2Fe0 + I / 20z reactions. Since the volume of the frac sand companies strength and the effect of the density of the reaction products are reduced. If the calcination temperature is too low due to burning phenomenon occurs due to insufficient sintering, its intensity is reduced. Firing temperature has little effect on the bulk density, but has a greater impact on the frac sand companies High crush proppants crushing rate and the acid solubility. Minimum firing temperature corresponding crushing rate of 1360 ℃, while the corresponding acid solubility best when firing temperature is 1350 ℃. Therefore, in order to obtain the desired combination of properties, the firing temperature must be between 1350-1370 ℃; producing a frac sand companies to the firing temperature should be controlled at about 1360 ℃, the solubility of the acid <5%, to meet the Claim.