采用化学气浮法处理模拟浊度废水,考察了水温、表面活性剂的加入量、产气药剂的加入量对处理效果的影响。结果表明,当水温为30℃时,阳性表面活性剂十二烷基苯磺酸钠的加入量为0.07 g,制备气体药剂加入量为25 m L时,气浮效果最好,剩余浊...采用化学气浮法处理模拟浊度废水,考察了水温、表面活性剂的加入量、产气药剂的加入量对处理效果的影响。结果表明,当水温为30℃时,阳性表面活性剂十二烷基苯磺酸钠的加入量为0.07 g,制备气体药剂加入量为25 m L时,气浮效果最好,剩余浊度最低。展开更多
Using sodium diethyldithiocarbamate as a collector the flotation behavior of pyrrhotite was investigated. The relationship between potential and pH range for pyrrhotite flotation was established. The results show that...Using sodium diethyldithiocarbamate as a collector the flotation behavior of pyrrhotite was investigated. The relationship between potential and pH range for pyrrhotite flotation was established. The results show that the flotation of pyrrhotite is dependent on pulp potential at certain pH values. Pyrrhotite has good floatability from pH 2 to pH 12, and poor flotability at pH>12. Cyclic voltammetry and Fourier transform infrared spectrum analysis show that the major adsorption product of DDTC on pyrrhotite is tetraethylthiuram disulfide. The intensity of Fourier transform infrared signals of tetraethylthiuram disulfide adsorbed on pyrrhotite and the anode current of a pyrrhotite electrode and flotation response of pyrrhotite are correlated with pulp potentials.展开更多
文摘Using sodium diethyldithiocarbamate as a collector the flotation behavior of pyrrhotite was investigated. The relationship between potential and pH range for pyrrhotite flotation was established. The results show that the flotation of pyrrhotite is dependent on pulp potential at certain pH values. Pyrrhotite has good floatability from pH 2 to pH 12, and poor flotability at pH>12. Cyclic voltammetry and Fourier transform infrared spectrum analysis show that the major adsorption product of DDTC on pyrrhotite is tetraethylthiuram disulfide. The intensity of Fourier transform infrared signals of tetraethylthiuram disulfide adsorbed on pyrrhotite and the anode current of a pyrrhotite electrode and flotation response of pyrrhotite are correlated with pulp potentials.
