Effect of frother on cell characterization and circuit performance

起泡剂对电池特性和电路性能的影响

• 批准号: 380626-2009
• 负责人: Finch, James
• 金额: $ 8.06万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=438353
• 关键词: Effect; frother; cell; characterization; circuit

Flotation is one of the most widely used processes for recovering minerals from ores, providing the commodities of every day life from energy (oil sands) to consumer goods (nickel, copper) and advanced technologies (silicon). The process depends on dispersion of air as bubbles throughout tanks containing crushed and ground ore particles suspended in water (slurry). In the tank (or cell) hydrophobic minerals (not easily wetted) will attach to the bubbles and rise to form a froth (the float product or concentrate) and overflow the cell while the hydrophilic mineral particles remain in suspension to form the non-float product (or tailings). Two chemical reagent classes are commonly used in the separation, one to modify particle properties (e.g., collectors to convert hydrophilic particles to hydrophobic) and another to alter the bubble properties, known as frothers. It is this second reagent class that is a focus of this proposal.

浮选是从矿石中回收矿物的最广泛使用的工艺之一，提供从能源（油砂）到消费品（镍，铜）和先进技术（硅）的日常生活商品。该过程取决于空气作为气泡分散在含有悬浮在水中的破碎和研磨的矿石颗粒（浆料）的罐中。在槽（或池）中，疏水矿物（不容易润湿）将附着到气泡上并上升以形成泡沫（浮选产品或浓缩物）并溢出池，而亲水矿物颗粒保持悬浮以形成非浮选产品（或尾矿）。在分离中通常使用两类化学试剂，一类用于改变颗粒性质（例如，收集器将亲水性颗粒转化为疏水性颗粒）和另一种改变气泡性质的称为起泡剂的物质。第二种试剂类别是本提案的重点。