| OCR Text |
Show 18 Roasting Bullion Coali td ori #5 % Total Time of Zn roasting Raw 2 hcur s 4 7000c. of % cr % total 8.83 30.02 8.83 90 of t-otal Zn sol H2SO4 in 10% sol Fe oz.- H2SO4 /'0 11.52 t;rac_e It 11.60 0.61 16.0 15.75 36.0 35.8 21.8 21.8 1.23 47.7 39.4 11.1 10.9 72.8 65.8 57.1 62.5 3'.14 91.7 89.3 10.02 1.73 1.44 9.91 9.85 4-.05 14.96 10.07 3_.63 78.8 7.6.2 65.7 68.7 3.32 95.1 96.6 6;.76 7.05 75.1 77/.2 69.6 3.11 95.4 98.9 8.39 9.5 • 14.86 6 hour-a t. To. tal 'I'o ta l. Zn sol Pb sol Sol. Pb S in ac. in am, S ,='1 % a.cid /'0 ac e t., % 15.30 10.36 12.10 15.27 10.36 hours. 14 ... total 1-3.26 13.26 ore a 6.76 14.80 9.74 15 30 9.91 9.96 3. 38 14.75 14.80 14.86 9.91 9.91 3.30 76.9 74.2 82.9 74.8 3.08 98.7 98.9 7.05 5.56 12 hours 14.50 10.'35- 3.11 77.8 77.0 71.0 71.5 2.80 100.0 5.8 5).61 78.9 77.6 71.0 79.3' 2.48 100.6 100.2 6.04 6.28 79.2 75.6 81.8 76.8 2.37 101.3 99.6 5.52 7.30 8 hours 10 hours .. 14.44 10.12 14 14.34 10.41 14.60 10.12 2,,74 16 hours 14.30 10.30 14.40 10.30 2.69 hour's 78-.8 Ln the 101.6 Conclusions: WI th this #1, acid gi ves hi_gher extrac.td cns au l.phur-; c tharJ. acetic acLd after abcu t 6 rroas t.Lng Wat.er hours appears ao Lub t e 95t; , o.f ore of zinc the roas necessary J as z.i.nc is ting. t;.o. 4 to ox i d t ze <ioes-_not. exc.eed 1% case of Daly Judge of the soluble in 6 hours the 10% H2S04 addi tional r-emaf.nf ng a.t, any zinc time. zi.nc .. |
