研究了铜法测定高钛渣和高钒渣中金属铁结果偏高的原因,测定了铜法溶解钛渣和钛渣中钛钒和亚铁受浸蚀的量。结果证明:钛渣中钛和亚铁受浸蚀量很小,使金属铁测定结果仅偏高0.15％左右,钒渣中钒和亚铁受浸蚀较多,使测定结果偏高0.2～1.3％。建议,仍用铜法测定高钛渣中金属铁;钒渣中金属铁测定改用汞法或高铁盐法。 The reasons for the high iron content in the high titania slag and the high vanadium slag by the copper method were studied. The amounts of titanium vanadium and ferrous iron in the copper-dissolved titanium slag and the titanium slag were also measured. The results show that titanium and ferrous slag in titanium slag by a small amount of erosion, the determination of metallic iron is only about 0.15% high, vanadium slag and ferrous corrosion by more, so that the determination of high 0.2 to 1.3 %. Proposed, still using the method of determination of high titanium slag metal iron; vanadium slag determination of metal in the mercury method or the use of high-speed method of salt.