Low-grade tungsten-molybdenum polymetallic ore beneficiation method
The invention discloses a low-grade tungsten-molybdenum polymetallic ore beneficiation method. The low-grade tungsten-molybdenum polymetallic ore beneficiation method comprises the following steps that (1) raw ore is multi-metal associated ore of iron, molybdenum, bismuth, sulfur and tungsten, after...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a low-grade tungsten-molybdenum polymetallic ore beneficiation method. The low-grade tungsten-molybdenum polymetallic ore beneficiation method comprises the following steps that (1) raw ore is multi-metal associated ore of iron, molybdenum, bismuth, sulfur and tungsten, after the raw ore is crushed, ground and graded, iron ore concentrate is obtained by adopting a magnetic separation process of one-time roughing and two-time concentration, and iron tailings enter a thickener to be concentrated; (2) the concentrated iron tailings are subjected to molybdenum-bismuth mixed flotation through the technological process of one-roughing, three-sweeping and three-concentrating, molybdenum-bismuth mixed rough concentrate and molybdenum-bismuth tailings are obtained, wherein molybdenum-bismuth separation is conducted on the molybdenum-bismuth mixed rough concentrate, and the molybdenum-bismuth tailings enter a tungsten flotation stage; (3) the molybdenum-bismuth mixed rough concentrate is subject |
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