Published Paper Details:

Inorganic ion exchangers behave quite differently from the point of view of their swelling characteristics. Swelling in water is quite pronounced in clay minerals used as exchangers, but in synthetic products from Zr or another group of four elements, the swelling characteristics are quite different. Though the prepared product is hydrated to a great extent when they are dried, they lose much of their water except those molecules which are linked to the structure more strongly. If they again put in water, they do not absorb water to some extent. Though they show swelling in many cases up to ~100%, this effect is negligibly small for samples heated to higher temperatures. Zirconium phthalate and Zirconium phthalophosphate have been shown to give swelling of about 103-116% respectively. In general Zirconium Phosphate products are denser and do not swell considerably. The newly prepared exchanger has also been studied for its swelling characteristics.