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AssigneeBrigham Young University
InventorsJerald S. Bradshaw, Reed M. Izatt, Ronald L. Bruening, James J. Christensen, deceased
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The invention has composition of matter and process aspects. The composition of matter aspect relates to the compounds selected from the class consisting of: ##STR1## in which Silica is sand or silica gel. The process aspect involves the use of any of these compounds packed in a column through which a solution of the multiple ions is flowed to complex with the compound and separate a desired selected ion from a multiple ion solution, breaking the complex by flowing a receiving liquid through the column to free the desired ion and recovering the freed desired ion from the receiving liquid.
The process of separating a selected ion from a plurality of other ions in a multiple ion solution comprising by flowing the multiple ion solution through a column packed with a composition of matter comprising silica covalently bonded to a hydrocarbon chain covalently bonded to a macrocyclic compound having at least four A-C-C groups in which A is selected from O, O-- CH.sub.2, S, S-- CH.sub.2, N-- R and N-- (R)--CH.sub.2 in which R is selected from H, methyl. alkyl and benzyl, and the hydrocarbon chain has an end group ##STR7## which is covalently bonded to the silica and in which X is selected from lower alkyl, benzyl, phenyl, halogen, --O-- CH.sub.3, --O-- C.sub.2 H.sub.5 and --O-- Silica.
A process of separating a selected ion from a plurality of other ions in a multiple ion solution comprising by flowing the multiple ion solution through a column packed with a composition of matter comprising silica covalently bonded to a macrocyclic compound from the classes consisting of:
A process of separating a selected ion from a plurality of other ions in a multiple ion solution as set forth in claim comprising flowing the multiple ion solution through a column packed with a composition of matter having the structural formula:
Dependencies are inferred from the claim text.