| 摘要 |
<p>1481120 Titanium tetrachloride LAPORTE INDUSTRIES Ltd 10 June 1976 [4 July 1975] 28176/75 Heading ClA Iron-containing titaniferous ore is chlorinated to give a gaseous mixture of titanium tetra chloride and iron chloride of which more than 50% on a molar basis is in the trivalent state, which is mixed at 500-800‹ C with a quantity of oxygen in excess of the theoretical amount required to form ferric oxide and chlorine, wherein the resultant ferric oxide particles are entrained in the gas, and are separated, and residual gases are cooled to a temperature above the boiling point of TiCl 4 to condense residual FeCl 3 , which is separated and the remaining titanium tetrachloride vapour is recovered. The titaniferous ore is suitably an ilmenite ore which may be chlorinated in a fluidized bed of one particles admixed with carbon particles at a temperature of 850-1100‹C. (see Specification 1,481,144).</p> |
