... coke 0. 8-1 .5 - 4 W matte layer thickness, m 0-0 . 45 0-0 .4 0. 4-0 .8 0.8 0-0 .3 0-0 .2 0-0 .2 158 Extractive Metallurgy ofcopper Copper siphon Fig. 10.1. Mitsubishi downward lance ... overflow hole 5 available 46 0-4 80 (70% CU) 2 0-3 5 6 0-8 0 4 0-4 5 3 2-4 0 9-1 4 40 0-4 20 0.7 0.2 12 25 6 0-7 0 1 2-1 6 0.42 1240 recycle to smelting furnace 1 3-1 5 28 1200 2 5- 4 0 Fuel ... Processes, ed. Diaz, C., Holubec, I. and Tan, C.G., Metallurgical Society of CIM, Montreal, Canada, 51 3 52 4. 184 Extractive Metallurgy of Copper Campos, R. and Torres, L. (1993) Caletones...