Development and utilization of lard resources were discussed in the characteristic of raw materials, processing, application and present problems Extracting process,refining process and application research in health lard oil,liquid lard oil,powdered lard were emphatically introduced in this paper.

This paper describes the separation process of a new fermentation defoamer lard oil.

In order to improve the quality of liquid shoe-polish,we developed different emulsifying wax solution directly by adding different brigherner,keeping temperature 40～50℃,and adding them in order according to a stated proportion.

In order to improve the quality of liquid shoe-polish at home, the technology of emulsifying wax solution directly is developed,by adding the natural resin M.

The influences of the kind of catalyst and temperature on the yield and compasition of liquid oil and carbon deposit on the catalyst during pyrolysis and the influence of temperature on the yield of liquied oil during catalytic degradation were studied.

The volatile organic compounds source profiles of motor vehicle exhaus t, gasoline vapor and liquid gasoline were determined by averaging the ratios of individual VOC species concentration to the total concentrion of all VOC specie s measured.