Show NEW CYANIDE PROCESS statesman boise idaho george Z edwards manager of the lincoln mine at pearl has returned from portland where he took a quantity of ore from the mine for treatment by the garvin aya cyanide nide extraction process he reports that the results attained were highly satisfactory on one t test est the heads ra ran n 0 1084 8 4 a ton ion and after eighteen hours the Wi tailings linds showed only after twenty four hours there the metal still ifill e carried a ailed riled in the solution n represented only 10 cents aton a ton in one test on pounds the afie heads assayed and in eight hours the ex extraction i tra had proceeded so far that only remained in the pulp and 16 19 cents in the polut solution ion the process uses electricity for precipitation and the small amount in the solution indicates dicatos n the comple completeness tenes s of the p precipitation the ore is ground in the solution and i dropped from the amalgamating plat plates es into int a vat having a conical bottom when the vat is filled to the depth the solution runs off through an opening above into into a box in which the precipitation takes place the box is fitted with a series of anodes running from the top to a point near amalgamating plates revolving like the paddles of a water wheel these plates catch the gold precipitated and passes on down through a pipe beneath the tank at the extreme bottom of the tank a connection is made with the pipe pulp is admitted through a valve into the solution and the latter in this condition is pumped up again to the top of the tank in this manner the pulp and solution are kept moving the solution is drawn off at one side comparatively clear and again mixed with pulp after which it is returned to the top of the tank the precipitation goes on constantly and the pulp is constantly stirred by being drawn out at the bottom ad and returned to the top of the tank with his process it is claimed the slimes do not cause trouble it makes no difference how fine the ore is ground or how much slimes is turned out all goes through the solution and the values are taken from all according to the claims made for the process mr edwards saw tests made from a number of mines of eastern oregon in which very satisfactory results were attained the persons interested stating they had not been able to find any other process with which anything could be accomplished mr edwards was so well pleased with the process that he went into a new company which will control the process in utah nevada montana and central oregon those interested with him are E C garvin walter pryer fryer and a new york man mr edwards will look after the business in this section and may establish a testing plant here he does not intend to sever his connection with the lincoln at least not for the present but will take another larger phlp shipment of ore to portland to io b be e tested |