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Derivation Of KCl from Potassium Feldspar via Varied Salts
Version 1
: Received: 14 September 2023 / Approved: 15 September 2023 / Online: 19 September 2023 (04:30:16 CEST)
A peer-reviewed article of this Preprint also exists.
Türk, T.; Kangal, M.O. Extraction of KCl from Potassium Feldspar by Various Inorganic Salts. Minerals 2023, 13, 1342. Türk, T.; Kangal, M.O. Extraction of KCl from Potassium Feldspar by Various Inorganic Salts. Minerals 2023, 13, 1342.
Abstract
Feldspar which is one of the main inputs of the ceramic and glass industry has widespread resources in Turkey and holds an outstanding role in exportation. In addition to this, potassium feldspars are one of the suitable resources for the production of potash which is a vital component for agriculture industry. The chlorination technique was used to produce potassium chloride (KCl) from potassium feldspar ore in Kırşehir-Buzlukdağı region. The process of potassium chloride production was carried out with calcination process to decompose potassium feldspar and form potassium chloride while using different kinds of salts such as CaCl2, NaCl, and CaSO4 followed by water leaching process. The recovery from feldspar with 7.21% K2O content was obtained with the 1:1.25:1.5 ratio of Feldspar:CaSO4:NaCl at 1000 °C for 60 minutes followed by leaching. 96.08 % potassium dissolution was achieved.
Keywords
potassium feldspar; potassium chloride; calcium chloride; sodium chloride; calcium sulfate
Subject
Engineering, Mining and Mineral Processing
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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