Ogden Evening Standard | 1910-11-08 | Page 8 | Chio Tests Will Create Much Interest

OHIO TESTS WILL CREATE MUCH INTEREST Third Un,it With Its Rolls Will Show Difference in Methods. A crreat deal of Interest is evinced by IrK'.i I Ohio Copper stockholders In the purpose of Colonel K. A. Wall to install somewhat of a departure in i. re concentration at the Lark plant the third unit to give the roll system of crushing are an opportunity to compare with the results of the Chilean Chil-ean mills now used in the Initial two units The mill is ling placed in condition to receive this third unit, the erpiipment for the same br-ln br-ln gatlx-red without, delay. Advocates of the roll system of ore preparation assert that this comparative compara-tive try out will prove their .side of the ease without question They point out that the other method tends to destroy the crystalline or granular character of the metallic contents of the ore, producing a lincJ v-divlded, pulverized product which Is" amorph-oiir, amorph-oiir, and which tends to pass away in the tailings held In suspension. On the, other hand, they say. the metal In the ore under treatment v the rolls retains this crystalline or granular form, and even to an extremely ex-tremely tine mesh will yield to a better bet-ter degree of concentration. Mill men will watch the remits with the keenest Interest, for in spile of the progress made In the treatment of low-grade copper ores the Industry still Is in Its onth and worth anv effort that can be made to bring aliout better results than those so fur achieved.