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Morzherin, Y., Rudkevich, D.M., Verboom, W. and Reinhoudt, D.N. (1993) Chlorosulfonylated Calix[4]arenes: Precursors for Neutral Anion Receptors with a Selectivity for Hydrogen Sulfate. The Journal of Organic Chemistry, 58, 7602-7605.
https://doi.org/10.1021/jo00078a052

has been cited by the following article:

• TITLE: Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

  AUTHORS: Walther B. Aparicio-Aragon, Tania Deza-Ramos

  KEYWORDS: Extraction, Amalgamation, Polymer, Natural Silicate, Calixarene

  JOURNAL NAME: Advances in Chemical Engineering and Science, Vol.14 No.2, April 22, 2024

  ABSTRACT: Currently a technique widely used for gold extraction is mercury by amalgamation technique, the tailing produced pollutes water of all kinds, so it is necessary to develop a form of selective mitigation, for which it is necessary to use complexing agents based on calixarene functionalized with mercury sequestering agents. These are immobilized by adding supports based on natural silica to form polymers and make them insoluble in all types of solvents, so that they can be used as an extractor and at the same time regenerate to their original properties for continuous reuse.