Molten iron, slag and feed material for the sulphate process are disclosed. All are products of a 5 direct smelter. Also disclosed is a molten bath-based direct smelting process comprises controlling the process conditions in a direct smelting vessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise when the slag 10 temperature is in a range of 1400-1550 C in the molten bath in the vessel. WO 2011/143703 PCT/AU2011/000580 Mg/Z=.99 0.9 . 0.9 FeO/Z =.07 where Z=(Si0 2 +CaO+Al2 03) ~' M203 CORUNDUM 1100 / MULLITE aCa2S104 CLINOPYROXENE WOLLASTONITE 0.1 - - - -- - - ) - ; 0.1 CaO 0.*9 0.1 Si02 MASS FRACTIONS /(1203+S02+CaO) Slag Tertiary System M305 " 1500. LIQUID : 1400 So LIQUIDONLY 2J203+Mgo+S 02 F U LQUID+ SOLI 0 5 10 15 20 25 30 100% TITANOMAGNETITE OPTION FOR T102 PIGMENT FEED s.1600 1500 M 05 TITANOMAGNETITE +1ILMENITE 1400 T102 M 05 ~1300 1300o LIQUID ONL v LIQUID+SLD/ onn0 5 10 15 20 25 30 CaO Ti02 Slag liquidus measurements on high 1102 slag SUBSTITUTE SHEET (RULE 26) RO/AU
