Calcined petroleum fracturing proppant ceramic technology

Calcined petroleum  fracturing proppant  ceramic technology

Fired  Ceramic proppant  production is the most important one in the process, microstructure and macroscopic properties of its huge impact. Determining the ratio of the sample

after the powder in the firing process at a lower temperature between the liquid phase produced, at the same time will occur to Britain corundum crystal petrochemical reactions

and changes in the calcination temperature must be controlled so that the maintained within the optimal temperature range, thus ensuring after firing with excellent overall

performance. If the temperature is too high there will be over-burning phenomenon which the iron oxide (Fc203) related to the content. In the one we introduce what is unburned

ceramic sand. Liquid phase formed on the surface, hindering the diffusion of oxygen to the center, then occurs Fe203 = 2Fe0 + I/20z response. As the response to the volume

effect of the product strength and density are reduced. If the calcination temperature is too low due to burning phenomenon occurs, due to insufficient sintering, the strength

is reduced. Firing temperature has little effect on the bulk density, but the fragmentation rate and acid solubility have a greater impact. Broken rate corresponding to the

minimum firing temperature is 1360 ℃, and the corresponding acid solubility optimum firing temperature is 1350 ℃. Therefore, to obtain the desired combination of properties,

the firing temperature must be controlled at between 1350-1370 ℃; high strength proppant to be prepared, the firing temperature should be controlled at about 1360 ℃, the

solubility of the acid <5%, to meet the requirements.