Most proppant material obtained by LAS, additives can reduce fracturing proppants the sintering temperature fracturing proppant. Studies have shown that: the additive at a lower temperature may promote generation liquid, or a solid solution reacts with Al2O3, improved sintering activity. The most commonly used additives are mainly manganese powder, barium carbonate, calcium carbonate, dolomite, chromite and so on. In the high-temperature sintering manganese ore and manganese ions are easy to replace aluminum ion, the lattice variation, thus promoting sintering, its amount is generally 1% to 3% is appropriate; barium carbonate and calcium carbonate at high temperature sintering process will monoclinic barium feldspar and anorthite Dan Shengcheng, both to protect the other components of the product from acid erosion, which amount to 3% to 5% and 1% to 2% is appropriate; dolomite at high oil fracturing proppant temperatures can promote liquid generate, promote sintering, but also to promote the precipitation of corundum surface secondary mullite crystals, improve the sintering properties of the sample, is generally added in an amount to 2% to 3.5% is appropriate; chromite sintering temperature can be reduced, promoting mullite phase formation, the amount of chromite corundum grains will promote development, increase density, improve strength, its amount is generally 1% is appropriate.