Based upon the discussion of the diffusion and reaction processes in paper Ⅰ

including general analysis of crystal micro-structure

substance phase and chemical contents of three kinds of phosphate ores of domestic mine(Jing He

Xiao Feng and Kai Yang)

the reaction kinetics process involving phosphoric acid-phosphate ore particles was investigated in an experiment system.As a result

the new negative temperature effect of iron and alumium impurity reaction was discovered.Accompanying these special phenomena in fractal particles

the self-ordering structrue arising in the diffusion process was demonstrated in the experiments by using scanning electron microscopy and X-ray diffraction analysis.Furthermore

the kinetic process was described by adopting the new model in paper(Ⅰ)

and satisfactory results were obtained.