Potash: a global overview of evaporate-related potash resources, including spatial databases of deposits, occurrences, and permissive tracts

Abstract

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Thermochemical and Experimental Kinetic Analysis of Potassium Extraction from Ultrapotassic Syenite Using Molten Chloride Salts

“…1−6 At present, potassium is predominantly mined in the northern hemisphere, where large evaporite deposit resources containing potassium are abundantly available, dominantly in the form of the soluble salt minerals sylvite and carnallite and to a lesser extent polyhalite. 7 Limited K-soluble resources, unsustainability of crop production, and increase in the global price of potash have led researchers to identify new potassium resources. Low-grade K-bearing silicate resources such as ultrapotassic syenite, 8 glauconotic sandstones, 9 and nepheline syenite 10 have been identified as promising alternative resources for the production of potash.…”

“…Potassium (K) is one of the essential elements of fertilizers for plant production. There is an ever-growing demand for the production of potassium fertilizers (known also as potash) due to the increase of the world population and consequently the demand for food. − At present, potassium is predominantly mined in the northern hemisphere, where large evaporite deposit resources containing potassium are abundantly available, dominantly in the form of the soluble salt minerals sylvite and carnallite and to a lesser extent polyhalite . Limited K-soluble resources, unsustainability of crop production, and increase in the global price of potash have led researchers to identify new potassium resources.…”

Organic functional groups in the submicron aerosol at 82.5° N, 62.5° W from 2012 to 2014

“…When the points are confined to only the periods of the dark months (NDJF) and sunlit spring months (MAM), relatively high correlations of nss-SO = 4 and nss-K + emerge for both periods. Two potential sources of submicron nss-K + are mining activities in Regions 1 and 4, particularly potash mining (e.g., Orris et al, 2014), and sweetening of gas flaring emissions by KCO 3 . Amine solutions are also used to reduce acid gas emissions during gas flaring (e.g., Rochelle, 2009;Wu et al, 2004), and that may be a factor in the modest association of amine groups with Regions 1467.…”

Geology and mineral resources of the Southwestern and South-Central Wyoming Sagebrush Focal Area, Wyoming, and the Bear River Watershed Sagebrush Focal Area, Wyoming and Utah: Chapter E in <em>Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming</em>

“…The eastern edge of the tract is approximately 10 km (6 mi) west of the westernmost part of the Bear River Watershed study area. This possible potash occurrence is classified as a closed-basin brine type and coincides with the potash tract defined by the maximum extent of the former Lake Bonneville shoreline (Orris, 2014).…”