A high internal phase water in oil emulsion has been used as the binder in a novel agglomeration process for achieving selective and ultrafast recovery of hydrophobic particles. For the first time, the novel agglomeration was applied to the selective recovery of chalcopyrite particles from a model feed formed from equal portions of high grade chalcopyrite (27.5 wt% Cu grade) and pure silica, with Sauter mean diameter of the chalcopyrite of 11.0 µm. While very high copper recovery was achievable when sufficient binder was added, the selectivity was found to depend on the solution chemistry. The separation performance achieved in a period of 7 s of agglomeration was found to be very strong for a pH of 8.5, 9.0, and 9.5, but very poor at a pH of 10.5. Interestingly, this pH dependence was not observed in froth flotation experiments. Further, the aging of the model feed had an impact on the agglomeration but not on the flotation. These effects were attributed to the emulsifier, SMO, being released from the binder used in the agglomeration experiments.

高内相油包水型乳液已在新型团聚工艺中用作粘合剂，以实现疏水性颗粒的选择性和超快回收。首次将新型团聚技术用于从模型进料中选择性回收黄铜矿颗粒，该模型进料是由等比例的高品质黄铜矿（铜含量为27.5 wt％）和纯二氧化硅组成的，黄铜矿的Sauter平均直径为11.0 µm 。当添加足够的粘合剂时，可以实现很高的铜回收率，但发现选择性取决于溶液的化学性质。发现在pH 8.5、9.0和9.5的条件下，在团聚7秒内实现的分离性能非常强，但在pH为10.5时非常差。有趣的是，在泡沫浮选实验中未观察到这种pH依赖性。更多，模型饲料的老化对结块有影响，但对浮选没有影响。这些作用归因于乳化剂SMO从团聚实验中使用的粘合剂中释放出来。