Phase Transfer Preparation of Nano-sized Surface Covening Catalyst with Metal Surfactant ──Effect of Some Factors on Powder Size
Hu Zeshan Chen songing Dong Juniu Peng shayi (State Key Laboraory of Coal conversion Institute of Coal Chemistry, Chinese Academy of Sciences,Rear - Service Engineering Institute of PLA)
Surface covering catalyst with different Cu: Zn: Al ratio and different structure were prepared, such as CuO/Al2Q3 (CuO covered on nano - size Particles of Al2O3), CuO/ZnO,Cuo - ZnO/Al2O3 and CuO - Al2O3/ZnO. The influences of support material solubility, sol prepa-ration and phase transfer procedure heatingrate of calcintion on surface area of catalyst were stud-ied. The results indicated that the phase transfer prepartion technique of nano - sized particles, the protection ability of metal surfactant to sol particle varied with the metal element, the larger the solubility of support material, the bigger the particle of product, the special preparation proce-dure of surface covering catalyst did not result in a decrease of product surface area. The optimal heating - rate of caldnation was about 2℃/min, and the optimal mole fraction of metal surfactant in total metal was about 0. 25.
【CateGory Index】： TQ426