|
|||||
|
|
Performance evaluation for selectivity of the flocculant on hematite in selective flocculation |
|
| Authors: | Lopamudra Panda Pradip K Banerjee Surendra Kumar Biswal R Venugopal N R Mandre |
| Affiliation: | 1. Research and Development, Tata Steel Ltd., Jamshedpur, 831007, India 2. Institute of Minerals and Materials Technology (Council of Scientific and Industrial Research), Bhubaneswar, 751013, India 3. Indian School of Mines University, Dhanbad, 826004, India |
| Abstract: | Increased demand for iron ore necessitates the utilization of low-grade iron ore fines, slimes, and existing tailings. Selective flocculation can be an alternative physico-chemical process for utilizing these low-grade fines, slimes, and tailings. In selective flocculation, the most critical objective is the selection of proper reagents that will make floc of desired minerals. In present study, selective flocculation was applied to ultra-fine synthetic mixtures of hematite and kaolinite, and the Fe value was upgraded up to 65.78% with the reduction of Al2O3 and SiO2 values to 2.65% and 3.66%, respectively. Here, degraded wheat starch was used as a flocculant.In this process, separation occurs on the basis of the selectivity of the flocculant. The selectivity of the flocculant can be quantified in terms of separation efficiency. Here, an attempt was also made to develop a correlation between separation efficiency and major operating parameters such as flocculent dose, pH value, and solid concentration to predict the separation performance. |
| Keywords: | hematite kaolinite selective fiocculation modeling iron ores tailings |
| 本文献已被 维普 万方数据 SpringerLink 等数据库收录！ | |
| 点击此处可从《矿物冶金与材料学报》浏览原始摘要信息 | |
| 点击此处可从《矿物冶金与材料学报》下载全文 | |
