文章基本信息

标题：Analysis of operating variables for Yerba mate leaves supercritical carbon dioxide extraction
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作者：Branislava Teofilovic ; Nevena Grujic-Letic ; Strahinja Kovacevic 等
期刊名称：Chemical Industry and Chemical Engineering Quarterly
印刷版ISSN：1451-9372
出版年度：2018
卷号：24
期号：3
页码：231-238
DOI：10.2298/CICEQ170217035T
出版社：Association of the Chemical Engineers
摘要：Given the increasing demand for potassium in Brazil, the mining and use of carnallite is becoming increasingly important, because the current source of potassium, sylvinite, is being depleted and there is a risk of shortages. Based on theoretical and practical data available in existing literature, this work describes the development, simulation, and economic feasibility of a process for dissolution and crystallization of potassium chloride from carnallite ore. Positive results were obtained following the application of the Hoffman diagram and determination of the corresponding equation. The proposed process provided over 85% potassium chloride crystallization, demonstrating its superior performance, compared to existing procedures.
关键词：Yerba mate; supercritical extraction; caffeine; theobromine; chemometrics