Removal of metal from solution
AssigneeThe British Petroleum Company p.l.c.
InventorsRonald D. Hancock, Ian V. Howell
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Abstract
A functionalized silica is prepared by reacting silica with a silane and an aromatic hydroxy aldehyde. The product is useful for removing metals from solution, e.g., Cu from ATK, or in the extraction of U from solutions arising from the processing of its ores.
Claims7
A product, suitable for the removal of heavy metals, transition metals and actinide metals from solution, obtained by reacting (a) an inorganic solid containing surface hydroxyl groups with (b) a compound of formula (I) ##STR5## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, are organic radicals containing up to 20 carbon atoms, and n is an integer from 1 to 10, and (c) an aromatic ortho hydroxyaldehyde.
Dependencies are inferred from the claim text.