Transport processes of an ionic liquid in various soils
DOI:
https://doi.org/10.15626/Eco-Tech.2005.056Nyckelord:
Ionic liquid; Sorption; Distribution coefficient; pH; Ionic strength; Soil environmentAbstract
Ionic liquids are a new class of chemicals which are finding application in a wide variety
of chemical processes. Due to the wide range of possible application in industrial
processes, the ionic liquids should be evaluated before they enter the environment. As
part of a sustainable development of chemicals, the fate of the chemical needs to be
assessed and interactions characterized. Soils form an essential part of this assessment.
This study defines and evaluates interaction of an ionic liquid, l -butyl-3-
methylimidazolium tetrafluoroborate, with the soil component. This entity was chosen
due to its frequent applicability in various organic and catalytic processes and it is likely
that it will be soon produced on an industrial scale.
Aim of our work focused on the assessment of the partition coefficients of ionic liquid
with different types of saturated soils. The soils used in the experiment were forestry soil,
agricultural soil, fluvial agricultural soil, fluvial meadow soil and kaolinite. The partition
coefficients were determined using equilibrium batch tests. The influences of other factors
such as pH or ionic strength on sorption dependency of the ionic liquid were also studied.
Statistik
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