For air-water-air-water-water-anion exchange resin system, the effects of solid loading, particle size,separator and different guide tube forms on mass transfer coefficients were studied in an airlift cyclone reactor(HALR) with a volume of 130 L(inner diameter 290 mm and height 2 000 mm) and an apparent gas velocity of 0~0.84 cm/s. The results showed that the volumetric mass transfer coefficients of the three phases system were larger than the two phases. As the particle size increased, the volumetric mass ...