Raw Ore: Lepidolite, Spodumene, Gangue minerals: Quartz, Feldspar, Mica Li₂O Grade: 0.8%
Boosting gold recovery in quartz-hosted ores via flotation can be achieved through the following strategies:
Optimized Grinding and Liberation: Fine grinding of the ore ensures that the gold particles are liberated from the quartz matrix. Quartz-hosted ores tend to require precise control over particle size during grinding to expose the gold for effective interaction with flotation reagents. Over-grinding can lead to sliming and reduced recovery, so optimization is critical.
Appropriate Collector Selection: Using specialized flotation collectors, like xanthates, dithiophosphates, or specific reagent blends designed to enhance the attachment of gold-bearing minerals, improves recovery rates. Collectors tailored to target gold and associated sulfides (e.g., pyrite or arsenopyrite) are particularly effective as gold is often finely disseminated within these minerals.
pH Optimization and Depressants for Quartz: Adjusting the pulp pH during flotation can help enhance gold selectivity while suppressing quartz recovery. In quartz-hosted ores, depressants such as water glass (sodium silicate) or other modifiers are utilized to reduce the flotation of quartz and improve the concentrate grade with higher gold content.
By integrating these strategies, the flotation process can achieve better separation and improved gold recovery from quartz-hosted ores.
Prominer (Shanghai) Mining Technology Co., Ltd. specializes in providing complete mineral processing and advanced materials solutions globally. Our core focus includes: gold processing, lithium ore beneficiation, industrial minerals. Specializing in anode material production and graphite processing.
Products include: Grinding & Classification, Separation & Dewatering, Gold Refining, Carbon/Graphite Processing and Leaching Systems.
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Raw Ore: Lepidolite, Spodumene, Gangue minerals: Quartz, Feldspar, Mica Li₂O Grade: 0.8%
Raw Material: Weathered Granite Type Gold Ore & Associated Granitic Saprolite
Raw Material: Lithium Brine (from Lithium Triangle: Chile/Argentina/Bolivia)； Spodumene Ore (from Australia and China)
Raw Ore: Sulfide Type Gold Ore (with associated Pyrite and Arsenopyrite) Gold Grade: 4.2 g/t
Project Background: Expansion and Technological Upgrade of an Existing Flotation Plant
Raw Ore: Dual Oxide & Sulfide Gold Ore (Refractory in parts) Gold Grade: 3.5-4.2 g/t Final Product: Gold Doré (Au ≥96.5%)
Project Background: Upgrade of dewatering circuit for flotation concentrate and plant tailings to reduce moisture content and enable dry stack disposal.
Raw Ore: Multi-metal sulfide ore (Cu, Zn, Au) Ore Grade: Cu 1.2%, Zn 2.5%, Au 1.5 g/t
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