| OCR Text |
Show 29 Roasting of Bullio,n COCilition #3 7500C. a t: Percent. Pe,rcent,. of Tota_l Zn of Time 'f; roasting Raw Total To-tal Pb S % 16.00 4.68 10.80 4-.68 1.57 4.38 4.45 3.1:2 1.88 16.62/ 15.00 15.00 4.38 4.32 2.30 14.92 14.92 4.27 2 4.15 4 hours 17.00 6 hour's ConcLus Lona : This Bulli_on Coali tion 85 t:o 90% suffici ent The Ob 22 1.49 for time scr-een #3 for 1.08 3r; 9 1.08 35.9 34.8 50.6 51.9 1.27 1.31 85.1 86.9 90.7 86.8 0.61 0.61 95.7 89.3 90.6 0.47 0.47 95.0 90 4_ 93.1 0.61 0.65 •. a sa.t Lsf'ac.t.o ry get 90% of we our Four hours , as on .. 96.1 zinc semm obtai-ning good- extra:c:t,i oris analysi s was 20 mesh 37.9 93.5 roast and, to he , the, BU.ll:iLon Coali ti on #3 follows: 3.0% '" 35 tI, 20.87; u' 65 tf 36. 100 f1 18.8% O H n 1.94 lead ao.Lub Le of the r caet ed .• 5io54 6.70 temperature gives on samp l.ee % O92 16.35 hours S % 3.91 32.00 3.91 2 hours 8 Sol. 13.00 13.00 ore total of total H2SO4 Zn. sol. Pb. s-ol. sol. i.n 10% in sat. Fe. brine % H2SO4 On ft- Thru 150 mesh .. o , 401 7(J 200 u 8.2% 200 " 5.8% . |
