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: $ 7.83万
• 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: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=463165
• 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，提供日常生活中的商品，从能源（油砂）到消费品（镍、铜）和先进技术（硅）。该过程取决于空气作为气泡分散在含有悬浮在水（浆料）中的破碎和磨碎的矿石颗粒的罐中。在罐（或池）中，疏水性矿物（不易润湿）将附着在气泡上并上升形成泡沫（漂浮产品或浓缩物）并溢出池，而亲水性矿物颗粒保持悬浮状态以形成非漂浮物产品（或尾矿）。分离中通常使用两类化学试剂，一类用于改变颗粒特性（例如，将亲水性颗粒转化为疏水性颗粒的捕集剂），另一类用于改变气泡特性，称为起泡剂。第二类试剂是本提案的重点。