Ion exchange resin having dual morphology

A method of removing a metal oxide from condensate, which comprises:

• adsorbing a metal oxide on a highly ionized ion exchange resin having counter-ions, a resin matrix, and an adsorbent surface surrounding the resin matrix to produce an adsorbed metal oxide, said resin being gelular in a dry state and substantially macroreticular in a hydrated state;
• dissociating the adsorbed metal oxide into metal-containing ions at the adsorbent surface of the resin;
• and
• diffusing the metal-containing ions into the resin matrix.

A method for removing from a high-resistivity alkaline aqueous stream a metal oxide that is soluble in the alkaline aqueous stream and is relatively insoluble in neutral and acidic aqueous solutions, which comprises:

• hydrating a strongly basic dual morphology anion exchange resin in a microreticular, desiccated morphology to convert said dual morphology anion exchange resin to a macroreticular, hydrated morphology;
• said dual morphology anion exchange resin being gelular in a dry state and substantially macroreticular in a hydrated state;
• and
• passing a relatively high-resistivity alkaline aqueous stream containing a first concentration of a metal oxide that is soluble in the alkaline aqueous stream, and is relatively insoluble in neutral and acidic aqueous solutions, into a separation zone that includes a first particulate bed constituted by said dual morphology anion exchange resin in said macroreticular, hydrated morphology in a hydroxide form.

A method of removing from a high-resistivity aqueous stream a metal oxide which comprises:

• adsorbing a metal oxide selected from the group consisting of silicon oxide, aluminum oxide, and zinc oxide on a strongly basic anion exchange resin having a resin matrix and an adsorbent surface surrounding the resin matrix to produce an adsorbed metal oxide, said resin being gelular in a dry state and substantially macroreticular in a hydrated state;
• dissociating the adsorbed metal oxide into ions at the adsorbent surface of the resin;
• and
• diffusing the ions into the resin matrix.