Entrainment in Froth Flotation of Fine Coal, Indo-U.S. Collaborative Research

粉煤泡沫浮选中的夹带，印度-美国

• 批准号: 9415418
• 负责人: S.K. Kawatra
• 金额: $ 3.21万
• 依托单位: Michigan Technological University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-10-01 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9415418&HistoricalAwards=false
• 关键词: Entrainment; Froth; Flotation; Fine; Coal

9415418 Kawatra Description: This project supports collaboration between Dr. S.K. Kawatra of the Michigan Technological University and Dr. T.C. Rao of the Regional Research Laboratory in Bhopal, India. The research aims at understanding the behavior of entrained particles. Entrainment is one of the important mechanisms in processing of coal by froth flotation where particles are transported from the pulp phase to the froth phase. In that process particles enter the base of a flotation froth and are transferred up and out of the flotation cell suspended in water between the bubbles. The process is subject to the influence of many factors, such as the particle size, shape and surface chemistry, whose effects are not fully understood. In this research, experiments will be carried out to conduct studies in batch and continuous flotation cells. Experiments will be conducted using both well-characterized coals and synthetic mixtures of purified components, to compensate for the difficulty of determining particle characteristics in the heterogeneous mixture of minerals in coal. Scope : This project involves collaboration by two scientists with complementary experiences in testing and in mathematical modeling in dealing with a fundamental science problem. The solution of this problem, leading to better understanding of the factors involved in the process of particle entrainment, could have applications in the future in various industries. ***

9415418 Kawatra描述：该项目支持密歇根理工大学的S.K.Kawatra博士和印度博帕尔地区研究实验室的T.C.Rao博士之间的合作。这项研究旨在了解夹带粒子的行为。夹带是泡沫浮选选煤过程中颗粒从矿浆相向泡沫相输送的重要机理之一。在这个过程中，颗粒进入浮选泡沫的底部，并在气泡之间悬浮在水中的浮选池中向上和向外转移。这一过程受许多因素的影响，如颗粒的大小、形状和表面化学，这些因素的影响还不完全清楚。在本研究中，将在间歇式和连续式浮选槽中进行实验研究。实验将使用特性良好的煤和精制组分的合成混合物进行，以弥补在煤中非均质矿物混合物中确定颗粒特征的困难。范围：这个项目涉及两位在测试和数学建模方面具有互补经验的科学家在处理基础科学问题方面的合作。这一问题的解决，有助于更好地理解颗粒夹带过程中涉及的因素，在未来可能会在各种行业中得到应用。***