Nitrogenous or Oxygenous Collector

Hydrolysis reaction of diphenylguanidine (DPG) in water can be given as follows  

According to N.R. Tipman, compared with ethyl xanthate, the coUecling capability of diphenylguanidine is better in the flotation of copper. In addition, diphenylguanidine also performs a good collecting capability in the flotation of blende. 

Sour esters can be applied in the flotation of gold, silver, deposited copper, and towanite. But they perform bad collecting capabilities in the flotation of pyrite, blende, and arsenopyrite. 

It was reported that, it appears an intense collecting capability in the flotation of galena [30]. But tetra-alkylated derivative of urea appears no collecting capability in the flotation of blende and pyrite. 

It can be used as the collector of copper oxide ore. Following is for the reagent  

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