Show SUPERIOR Mill RECOVERY IMPROVEMENT F. F From the Eastern offices of Butte the information li Is s given gt out that the last week of ot May and the first weik uk of ot June the concentrating plant f fl l a a. recovery of ot 93 3 per cent of ot the or ore oreT T contents In the rock The concentrates ItO showed howd a Q bl biff return the contents content 54 Sf 4 per cent zinc j- j The combination o of at high recoveries rles an and high grade concentrates is Ia by far th the but best Von on cn record for the company und has nn nn- be bearing on earning capacity The high recoveries reco mean of course that a minimum of ot zinc Is running to waste In Ine inthe f the e tailings The high grade de con concentrates mean InC In In- C creased earnings since Butte Superior receives payment for its zinc on the basis buls of f so 0 much per ton lon for BO 60 per cent con concentrate concentrate with a handsome premium for J J F each unit or 1 I per cent in excess of EO O iJ per cent zinc contained in the concentrates concen- concen js This premium Is Ia such euch that with the present prent price of spelter a 1 per cent Improvement ment In tho the grade of or concentrates Is equivalent to 2 per par cent Improvement t. t in mill recovery Besides the tho higher f grade gra e concentrates concentrate mean 1 lesser freight lV charges f A 50 M O per cent concentrate and 93 perr per percent r cent nt mill recovery reco would be rea really II equivalent equiv alent on the tho basis of the settlement which 1 the Butte Butto Superior compan company receives recel for tor its zinc to per cent mill recovery 1 Von l on 01 to O 0 per cent concentrates tes J The steady Improvement ement in n both erles ereS es and grade of or concentrates Is the thc themore themore more r remarkable considering that it has haA surpassed the hopes of or the Butte Su Superior Su- Su perlor management Itself In tho the first fer annual report Issued a year car ago the hope hove ona was expressed that the regular recoveries cries eries on a normal grade ade of oro ore and at full mill capacity will Iff approximate 90 per percent cent with the tho probability that they may mal mayb b v reach reah or even pen exceed that t n figure re Tho The y year Tear ar 1 1013 13 er a averaged Ked per cent I 1 L mill recoveries re and per cent concentrates conf con- con f- f this grade of or concentrates concentrate in- in a penalty During the last r i quarter of ot 1913 the figures showed a ar J r per er cent mill recovery recover and per cent centI f concentrates The nr first t quarter of ot 1913 showed per cent mill recovery reco and andt t I per cent concentrates t General Manager Bruce Is encouraged l f to believe that the trie improvement will conI con- con I the Butte Bulte Su- Su BO so that CT very soon loon i perlor mill should be showing a 55 per cent concentrate with a n 93 per cent ro- ro er co covery of ot the zinc In jn the ore |