Amine detection and process control within potash processing systems

钾肥加工系统中的胺检测和过程控制

• 批准号: 477218-2014
• 负责人: Donaldson, Adam
• 金额: $ 1.8万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=578833
• 关键词: Amine; detection; process; control; within

Potash is a primary industrial product containing soluble potassium, and is used extensively within Canada and abroad as fertilizer needed to maintain agricultural production. Within the Mosaic Company's current process, potash is recovered through selective removal of KCl from a brine solution via floatation, which requires the use of a treated amine molecule to bind with the KCl and allow for it to be removed. Another type of amine is used prior to shipment of finished product to avoid dust pollution and improve handling characteristics. In both processes, knowledge of the amine content and state prior to introduction is important to improve efficiency and minimize the net environmental and economic cost of recovering potash from mining operations. Through an NSERC funded Engage program, Mosaic and Dalhousie University have identified a number of potential measurement methods which can address current limitations within Mosaic's monitoring process for these Amines, enabling better control of both the addition rates and degree of conditioning for use within the process. This preliminary work has also identified a new approach to working with these amines which will make their use inherently safer through inventory reduction and reduced manual involvement during routine operation. This project is expanding on these preliminary results, and is intent on fully developing both the measurement techniques and processing options needed to improve monitoring and efficiency in potash operations within Canada and abroad.

钾肥是一种含有可溶性钾的主要工业产品，在加拿大和国外广泛用作维持农业生产所需的肥料。 在Mosaic公司目前的工艺中，通过浮选从盐水溶液中选择性地去除KCl来回收钾碱，这需要使用经处理的胺分子与KCl结合并使其被去除。 另一种类型的胺在成品装运前使用，以避免粉尘污染并改善处理特性。 在这两种工艺中，在引入之前了解胺的含量和状态对于提高效率和最小化从采矿作业中回收钾碱的净环境和经济成本是重要的。 通过NSERC资助的Engage计划，Mosaic和达尔豪西大学已经确定了一些潜在的测量方法，这些方法可以解决Mosaic对这些胺的监测过程中的当前限制，从而能够更好地控制添加速率和过程中使用的调节程度。 这项初步工作还确定了一种处理这些胺的新方法，通过减少库存和减少日常操作中的人工参与，使其使用本身更加安全。 该项目正在这些初步结果的基础上进行扩展，并打算充分开发测量技术和处理方案，以提高加拿大和国外钾肥运营的监测和效率。