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Show 35 Leaching BullioD Coa.li.ti on #5 Calc.:ines. Roa.s t.ed. for 4 hours at 7500C on Gms. Zn Grams in free wt. o.r Zn in Acdd Sample Hea.ds Sol. Gms. Grams Ileach Time. H2SO4. No. 1 11 "2 2 It 11".11 4.25 u 3 if 20.00 13.20 4 3 5 3 floor of f'urnace % Gms Ext .• by SotL • Grams , Fe in Fe in Heads aol. 9.50 , Acid Eff. .084 79.2 3.71 78.8 u 3.71 78.8 If .103 81.6 If It 3'.64 77.3 1t .oae 80.8 11.11 4"_.09 Ifi ft. 3-.72 78.9 n .101 sc ,o 20.00 12.92 If tI 3.66 77.7 u .103 7,8.2 8.11 1.04 35 gma 4,.71 7.64 1'.00 35 gms 5;. OB ;'i,.30 65.0 9.3.8 .077 75.1 l-a 1·t 11 '2 10.8'7 4,,45-; u ii 3.33 65.5 H 2-a .091 20.00 13.25 tt 3.41 65.8 H: 1t ff 3-a, .098 7;63 10.87 3 94 u 3.41 65.8 tf 3 u 4'-a .115 74.4 U· 3.43 65.8 u. 3 20.00 13.05 u 5 .126 74.5:, ..• Roas t:.ed_ for 1- i1 '2 7 • 8 5' 1 • 44 6 hour-s at. 35 grus 520 78.4 7000C. 4.04 77.8 9.17 .075 95,,1 it II n 4.06 78.2 if 10.87 4.53 .084 96. 5 .089 98.6 it ff 4.14· 79.7 H 20.00' 13.66 If 3-0 4.08 78.6 n 10.87 4'.52' n .089 97.1 :3 ft' 4-h it .094 98.7 5-b 4.20 80.8 u 20.00 13.58 tf 3 2-b |