Box Elder News Journal | 1916-01-27 | Page 6 | Possible Source of Potash

possible source of potash A possible source of potash may erist ast 1st in the tailings piled up at the concentrating cent rating mills ot of the big copper minos mines in the west the porphyry ores which are being mined by tile the millions of tons annually contain several times as much potash as aa copper and this remains in tho the tailings at tho the mills material already finely ground and in condition for treatment as well as easily accessible for or shipment this potash however is locked up in the tha form of 0 silicate minerals and the commercial extraction of P potash from silicates has been for several sev eral years the subject of earnest study by industrial chemists who have not yet arrived at a definite conclusion