A fundamental investigation into wollastonite beneficiation: physicochemical properties and process mineralogy

硅灰石选矿的基础研究：物理化学性质和工艺矿物学

• 批准号: 511955-2017
• 负责人: Waters, Kristian
• 金额: $ 2.21万
• 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: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=696839
• 关键词: fundamental; investigation; into; wollastonite; beneficiation

Wollastonite is a calcium silicate industrial mineral, which is commonly used as a filler in paints and plastics. It is also used in the construction industry as a substitute for asbestos; ceramic applications including ceramic glazes and bodies; in metallurgical applications wollastonite is commonly added to formulated powders for steel casting and welding. Wollastonite is mined across the globe, with major deposits found in China (China being the main producer) as well as in India and the United States of America. To date, little work has been conducted on the extraction of wollastonite from its ores, or on the physico-chemical properties of this mineral. As such, this project is centred on determining the physico-chemical properties of wollastonite and other minerals within the Seeley's Bay deposit in Ontario, and using this knowledge to improve the understanding of wollastonite processing. This will have implications for both the Seeley's Bay deposit, and other wollastonite deposits globally. This project will investigate the properties of wollastonite and how these can be utilised in separation systems to produce a sustainable high grade concentrate to be used in various industries. Canada is one of the most important mining nations in the world, producing more than 60 minerals and metals. Mining and mineral processing has long been one of the country's key wealth generators. In 2014 the sector employed approximately 375,000 people and contributed $57 billion to Canada's Gross Domestic Product (GDP), accounting for 18.2% of the value of Canadian goods exports. Improved knowledge of the processing of valuable minerals is of vital importance to Canada, and the sustainable processing of these deposits, both in recovering the valuable minerals and in reducing the negative impact of the mining industry is required.

硅灰石是一种硅酸钙工业矿物，通常用作涂料和塑料的填料。硅灰石还用于建筑工业，作为石棉的替代品；陶瓷应用，包括陶瓷釉和坯体；在冶金应用中，硅灰石通常被添加到用于钢铸造和焊接的配方粉末中。 硅灰石在全球各地开采，主要矿藏在中国(中国是主要生产商)以及印度和美国。 到目前为止，从硅灰石矿石中提取硅灰石或研究这种矿物的物理化学性质的工作很少。因此，该项目的重点是确定安大略省Seeley‘s Bay矿床内硅灰石和其他矿物的物理化学性质，并利用这些知识提高对硅灰石加工的了解。这将对Seeley‘s Bay矿藏和全球其他硅灰石矿藏产生影响。该项目将研究硅灰石的性质，以及如何将其用于分离系统，以生产可持续发展的高品位精矿，用于各种工业。 加拿大是世界上最重要的矿业国家之一，生产60多种矿物和金属。长期以来，采矿和矿物加工一直是中国的主要财富来源之一。2014年，该部门雇用了约375,000人，为加拿大国内生产总值(GDP)贡献了570亿美元，占加拿大商品出口价值的18.2%。提高对贵重矿物加工的了解对加拿大至关重要，需要对这些矿藏进行可持续的加工，以回收有价值的矿物并减少采矿业的负面影响。