In this paper the optimal technology condition of manufacturing rice bran wax calcium soap is confirmed with orthogonally experimental method,taking PG as the phase transfer catalyst.

Refining of rice bran oil and preparation of bran wax;

The influence of different solvents, reaction time, ratio of wax and solvent,kind and concentration of catalyzer,reaction degree and extraction time on the extracting result of high fatty alcohols from rice bran wax was studied.

Determination of the Content of oil of Soapwax With Ultraviolet Spectrophotometry;

Ultrasonic-assisted preparation of octacosanol from rice bran wax;

The hydrolysis of rice bran wax is the obstacle in rice bran wax utilization.

The raw rice bran wax was refined through degumming of phosphorus acid,extracting deoil of ethyl acetate and bleaching of H 2O 2—NaClO.

Tall oil was used as a model compound of the pitch in the pulp suspension to study the effects of calcium soaps on the pitch deposition with and without fibers.

The results showed that the forming of calcium ions was a significant factor affecting the pitch deposition, and the deposition was related to not only the amount of calcium soaps but also their dispersion, and the better the calcium soaps dispersion, the less the deposition, pH value influenced the pitch deposition significantly.