NEITHER MORGAN STANLEY NOR DEAN

Brand	Owner	Address	Description
MORGAN STANLEY CLIENT LINK	MORGAN STANLEY, DEAN WITTER, DISCOVER &CO.	1585 Broadway, 38th Floor New York NY 10036	Neither MORGAN STANLEY nor DEAN WITTER are the names of living individuals.;financial services in the nature of underwriting, distribution and trading of securities; stock brokerage and research services; and investment management and advice;The lining in the drawing is a feature of the mark and does not represent color.;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The present invention attaches a molecule that contains a hydroxyl group (OH) attached to a carbon chain which is attached to a coordinating atom or atoms, the acidity of which is greater than that of silica (i.e., pKA <10). The condensation is achieved by mixing silica gel, appropriate amount of ligand, and a drop of conc. sulfuric acid in toluene in a flask attached to a Dean-Stark tube. Heating of the mixture is continued until the amount of water, obtained by azeotropic distillation and condensation, reaches a constant value. Toluene is filtered off, and recycled. The supported ligand is dried under reduced pressure to remove residual toluene. The composite (ligand attached to silica) can then be used by batch or column method to remove heavy metal ions from aqueous solution.