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Jena SK, Dash N, Angadi SI. A novel application of Linz-Donawitz Slag for potash recovery from waste mica scrap using chlorination roasting coupled water leaching process. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1819322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sandeep Kumar Jena
- Mineral Processing Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, India
| | - Nilima Dash
- Mineral Processing Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, India
| | - Shivakumar I. Angadi
- Mineral Processing Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, India
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Singla R, Alex TC, Kumar R. On mechanical activation of glauconite: Physicochemical changes, alterations in cation exchange capacity and mechanisms. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.10.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Jena SK, Dash N, Samal AK, Misra PK. Competency of chlorination roasting coupled water leaching process for potash recovery from K-feldspar: Mechanism and kinetics aspects. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0393-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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The Correlation of Roasting Conditions in Selective Potassium Extraction from K-Feldspar Ore. MINERALS 2019. [DOI: 10.3390/min9020109] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Feldspar minerals are essential ingredients for the glass and ceramic-glass industries. The potassium element found in certain proportions in the composition of K-feldspar minerals has a fundamental function in the growth of plants. The production of potassium fertilizers is mostly made from the soluble minerals, which are located in lakes. Despite having a huge area of use in the agriculture industry, the reserves of these salts are limited and not evenly distributed in the earth’s crust. Due to the high availability of feldspar reserves in the earth’s crust, the production of potential potassium salts can provide a wide range of social and economic benefits. In this study, potassium extraction from a feldspar ore, which contained microcline, albite, muscovite, and quartz, was studied using chloridizing (CaCl2) roasting followed by leaching. Direct leaching experiments were also performed on the sample by adapting various solvents. To emphasize the importance of roasting before the dissolution process, different parameters such as particle size, roasting temperature, and duration, as well as the feldspar/CaCl2 ratio, were tested. Under the optimum conditions (i.e., −106 microns, 850 Co, 60 minutes, 1:1.5 feldspar:CaCl2), 99% of the potassium was successfully extracted from the ore feed.
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