Bisbee daily review., 1919-03-23
Special to Tho Review)

f
 bonates Will soon have been exhaust cd. The story of exhaustion is untrue as there are many years work on the carbonate masses. These overlie the
 Sudphitdes ana comprise about one fourth of the entire ore tonnase or the company, which will measure up. l with Ajo Consolidated. about 6O,- COU,OO0. and with considerable
 ground as yet not tested. The sul- phides can he reached. if it is de i sired to treat them by mining the carbOnates from one end of the big deposit, exposing the SulphideS be- low. The extent of this operation will probably depend on how the market for copper will be- If there
 is the demand at fair price undoubt- edly the sulphides will be worked The test now being prepared for is to ] complete process and have it ready
 by the time the carbonate ores have
 been mined.
 Of the company's preparations the Ajo Copper News of aJnuary S1. has the following to say:
 New COrnelia's oil flotations test plant should be in operation in about go days, according to present calcu- latiOns.
 The foundations are almost all practically completed. and the mach
 inery is here.
 ! The plant will have a maximum
 capacity of 500 tons per day.
 Though later when larger plant
 is in operation a larger force will be
 required. the initial test plant will
 use but very few men - probably not over a dozen. So its operation ir l addition to the other operations of ! New Cornelia will be an improve ment scarcely noticed, as to pay roll ] increase.
 1 Its significance otherwise, how ever, is of course very great as it
 means an entirely separate new re- z duction process for Ajo, treating a ! different class of ore (sulphideS);
 increasing production; and ncreas- ing the worth of New Cornelia anc the value of its shares.
 The new plant will consist of the ! following: No. 6 Gates syratOry | crushes, 4S Symons cruSher, ore bin, ' 1O-foot Marathon mill, 9-foot Mara i thon mill. S-foot Hardinge mill, 1S- inch conveyor system, 16-inch h. spiration type Notation mill. Cole ! Bergman Notation machine, classifi- CTS, Deister tables, DOrr thickenerS. sand pumps, etc.
 The foundations, tunnels, etc, are nearly finished. There is a con crete tunnel 72 feet in length to the ore piles. The foundations for gy- ratory crusheI, the SymOns crusher and for the big ore bins are done, The concrete work fOE the Notation machine, and the excavation, is al- most completed at this writing. No equipment used in the leach ! ing process can be used in this eX- perimental flotation mill. This is ! because the ore is entirely different, ! the crushing size is not the same, etc. However the power, of course, will come from the main power plant within the teaching plant enclosure ! furnishing power for all the needs of mine. teaching, water pumping, city light and power, etc, there are other conveniences, too, and every thing will be handy, the new plant being located within the fenced en- l closure, on the east side.
 ! A copper producer of the size and achievements of New Cornelia must necessarily be constantly mak- ing additions and improvements tending to greater efficiency and pro duction. Among the recent additions at the plant, nearly all of which are entirely outside of requirements for the test flotation plant, may be men- i toned these;
 One new motor generator set of 5000 emperes, at the power house; one solution storage tank; three Sy- mons crushers, making now b fine | crushers in all, The new concrete flue from the roasters to the spray chamber has been finished.
 To Enlarge Laboratory
 "A department that is by no means of the least importance is the 1 laboratory. which acts, one might
 say, as a clearing house for the plant. Here all the ore tests are made. Al ready it is found necessary to en- large this department. The addl- tion, which is on the south, will i be about S0x40 feet.
 New Process for Sulphides
 The new process will treat the 1 low-grade sulphide ores. In general terms. the process has already been ] described in Copper News. While process details will have i to be worked out, as one can readily
 see for the fact that the final goal
 as proposed is 10000 tons and a
 start is to be made on a basis of 800
 or 500 tons daily, there is not the uncertainty that attended the final
 working out of a satisfactory leach ing process here. Oil Notation is not
 so much an experiment. New Cor ] h, Nf ] liar ore properties in the west to be | guided by-Utah Consolidated, Ne
 vada Consolidated. and Chino each has ore much like this, being a mon- zonite-porphyry base! the Miami tn
 spirationl ore is quite different be-
 ing schist-granite formation, but