| 摘要 |
<p>1487477 Halidation of non-ferrous metals in manganese oxide ores DEEPSEA VENTURES Inc 15 May 1975 [24 May 1974] 20637/75 Heading C1A Manganese oxide ore is treated with the chloride, bromide or iodide of aluminium at a temperature of at least 50‹ C. to recover a non- ferrous metal halide reaction product comprising the corresponding manganous halide. The ore may be initially reduced to bring all of the manganese value to the divalent state, carbonaceous reducing agents or hydrogen being preferred. Ores exemplified are those containing mainly Mn and Fe together with minor amounts of Co, Ni and Cu, e.g. ocean floor nodule ore. The manganese oxide ore may be dehydrated prior to the reaction with the aluminium halide. Metallic manganese may be recovered from the substantially pure manganous halide obtained by reaction with a subhalide of silicon, aluminium or titanium; also obtained is the normal halide which if alumium trichloride may be reacted with the ore.</p> |
