Flotation Performance of Phosphonic Acid

It was reported that organic phosphonic acids with the alkyl of C -Cg perform good flotation performance in the flotation of cassiterite. For the flotation of cassiterite, the orders of flotation performances of various phosphonic acids are as follows Recovery rate  

Comparison between phosphonic acid, phosphorous acid, and pyrophosphoric acid was reported subsequently. The comparison of the above reagents can be summarized as follows  

For alkylaryl phosphonic acids, the flotation performances of p-methyl and p-propyiphenyl phosphonic acids are relatively better. 

Comparatively speaking, the concentrate grade is relatively higher when aryl phosphonic acid is applied in the flotation process the recovery rate is relatively higher when alkyl phosphonic acid is applied in the flotation process. The related flotation results of cassiterite are given as follows  

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