Pyrometallurgical treatment of nickeliferous pyrrhotite tailings for the recovery of Ni, Fe, and S

火法处理含镍磁黄铁矿尾矿以回收镍、铁和硫

• 批准号: 479533-2015
• 负责人: Barati, Mansoor
• 金额: $ 7.63万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641914
• 关键词: Pyrometallurgical; treatment; nickeliferous; pyrrhotite; tailings

Nickeliferous pyrrhotite tailing is a waste stream from the processing of nickel sulfide ores for nickel production. An estimated amount of 50~100 million tonnes of the material has been deposited in shallow lakes or dams in the Sudbury district, Ontario, which poses a potential environmental hazard for the local environment. The proposed project aims at developing a process to recover all values (Ni, Fe and S) from this stream, thereby convert the waste to value, and address the environmental concern at the same time. The final products from the process are Fe-Ni alloys, Fe powders, elemental sulfur for various industrial applications, as well as electricity. The various steps of the process are integrated in a way that would produce products of high economic value with minimal environmental impact and energy consumption, making it attractive from all technical, environmental, and economic perspectives.The proposed three-year project will involve approximately 15 researchers. Thus a large number of highly qualified personnel will be trained through the research. A great deal of knowledge will also be gained by testing the innovative ideas put forward and collaboration with the industry, leading to substantial development of this technology as well as its potential commercialization. By directly addressing the sustainability issues of the mining and metallurgical sectors, this proposed process could bring about benefits to Canada from the economic, social and environmental aspects.

含镍磁黄铁矿尾矿是从用于镍生产的硫化镍矿石加工中产生的废物流。估计有5000万~ 1亿吨的物质沉积在安大略萨德伯里地区的浅水湖泊或水坝中，这对当地环境构成了潜在的环境危害。拟议项目旨在开发一种工艺，从该流中回收所有价值（镍、铁和硫），从而将废物转化为价值，同时解决环境问题。该工艺的最终产品是铁镍合金、铁粉、用于各种工业应用的元素硫以及电力。该工艺的各个步骤以一种能够以最小的环境影响和能源消耗生产出具有高经济价值的产品的方式进行整合，使其从所有技术、环境和经济角度都具有吸引力。拟议的三年项目将涉及约15名研究人员。通过研究，将培养出大批高素质的人才。通过测试提出的创新想法以及与业界的合作，还将获得大量知识，从而导致这项技术的实质性发展及其潜在的商业化。通过直接解决采矿和冶金部门的可持续性问题，这一拟议的进程可以从经济、社会和环境方面给加拿大带来好处。