Effect of substrate pre-oxidation on SiO_2/S composite coating deposited on HP40 alloy;

Research on Treating Slight-polluted Source Water by Pre-oxidation of Potassium Permanganate & Sodium Hypochlorite and Conventinal Process;

Test of effect of pre-oxidation on coagulation efficiency;

Effect of preoxidation temperature on core/shell structure during the preoxidation procession of PAN fibers;

Study on properties in the preoxidation of PAN fiber;

Study on preoxidation process of polyacrylonitrile precursor;

Through comparing different effects of Panzhihua ilmenite and fore-oxidized ore on the grade of thick synthetic rutile and the pulverization rate of product after acid leaching,it is described that fore-oxidation has functions of improving the grade of thick synthetic rutile and reducing the pulverization rate of products.

A new type offluidized preoxidation furnace was designed in this paper based on characteristics of PAN base carbon fiber production process.

In order to resolve the present shortcomings of preoxidation during carbon fiber production process such as preoxidation technology taking too much time, lower production volume and higher energy consumption etc, we designed a new type of fluidized preoxidation furnace by adopting fluidization technology and studied the fluidized preoxidation feasibility of PAN based carbon fiber.