Potasiomu butyl xanthate jẹ reagent flotation kan pẹlu agbara ikojọpọ ti o lagbara, eyiti o jẹ lilo pupọ ni ṣiṣan omi adalu ti ọpọlọpọ awọn irin sulfide irin ti kii ṣe irin.Ọja yii dara julọ fun flotation ti chalcopyrite, sphalerite, pyrite, bbl Labẹ awọn ipo kan pato, o le ṣee lo lati fẹfẹ flotation Ejò sulfide lati irin irin sulfide, tabi lati yan sphalerite ti mu ṣiṣẹ nipasẹ imi-ọjọ Ejò fun flotation.