5.The volatilization of sintering aid Ni decreases by controlling the vacuum during sintering ,so this can increase the density of the sinew of TiC skeleton.
7.Because there was inhibitor(DCD) in Germany slow-release urea, which controlled nitroreaction and the fallen velocity of pH was slow, the amount of ammonia volatilization was great. The mineral coated urea was coated ground phosphate rock and reduced nitrogen release, decreased ammonia volatilization and betterthan other urea.
9.3. By the formula Y=atb simulating the relationship of ammonia volatilization and incubated days, in the first 9 days the velocity of ammonia volatilization by fertilizing mineral coated urea was slower than that by fertilizing general urea, then they were close to the same.
10.This paper introduced the basic theory of Zinc leaching residue volatilization kiln, combine with the practice improving on the one system before, and analyzing the causation of the low-level-pollution of Zinc leaching residue volatilization kiln, then bring forward a suitable project.