[STANSFIELD- TITANIFEROUS ORES OF IRON SHH 
WISSLER| 
The ore was smelted with the addition of charcoal and limestone, 
having the following composition: 
Charcoal Limestone 
Moisture rt nine 2°2%, CACOS HAN ER TER 96-22% 
Volatilesmatters <<; ..° 250% (CaO; 53-95%) 
Pixede@arbons?..2....1. 69-99% MeGO TEE Er LEE NNte4807 
ENS RE PS Er nr 2-9% (MgO, 0-68%) 
oe LS) LEURS AN RSS PIERRE Ge, 
100-0 FeO; + Al,O3 EL Sytad ons 0-98% 
The smelting charge was calculated on the assumption that 
titania would replace silica in the slag (as indicated by Rossi) so that 
the lime should be made about equal to the sum of silica, alumina, and 
titania. It was assumed that the resulting pig metal would contain 
about one per cent of silicon and one per cent of titanium, and the’ 
amount of charcoal needed was based on the assumption that the iron, 
silicon and titanium entering the pig metal would be reduced by the 
fixed carbon (the volatile matter being supposed to be lost) and that 
the reaction would yield carbon monoxide only. 
An addition of 20 per cent was made to the calculated amount of 
charcoal to allow for the mechanical loss of charcoal dust which is blown 
out of the furnace by the escaping gases. The final charge was: 
Ore Meters ws leis POs Shean. cho te RR 89 Ibs 
WeimMEStONESS Ante. oe eek te an ORNE 19-5 lbs 
Gharcoalltiy fat sate Meri ha a as eee 23-2 lbs 
The ore and limestone were crushed to one-quarter of an inch 
size and all the dust that would pass a one-twenty-fifth of an inch 
opening was separated. The charcoal was crushed to three-quarters 
of an inch size, and all the fines below one-quarter of an inch size were 
separated. The fines from the ore, limestone and charcoal were all 
mixed together and agglomerated by the addition of water and 3-5 
Ibs. of water glass; the damp mixture being allowed to dry, when it 
became hard and was mixed with the coarse ore and limestone. The 
lump charcoal was kept separate and charged into the furnace alter- 
nately with the other materials. 
The smelting operation lasted for four hours, the furnace using 
on an average 26-1 K.W. at 30 volts, the measurements being made 
at the low voltage bus bars; the current supplied to each of the upper 
