PRODUCT DESCRIPTION

ZGA307 is a standard gel strong base typeⅠquaternary ammonium anion exchange resin with a styrene-DVB copolymer matrix. It has both high operating capacity and the ability to achieve low residual silica levels. ZGA307 anion exchange resin is intended for use in all types of deionization systems and chemical processing applications. The anion exchange resin is mainly used in the preparation of pure water, waste water treatment and separation of biochemicals.

It is supplied in chloride or hydroxide form. ZGA307 series contains four products: ZGA307  for  general  use;  ZGA307SF  for  double  compartment  bed,  dual  bed  and floating bed system; ZGA 307FC for double compartment bed and floating bed system; ZGA 307MB for mixed bed system, and ZGA 307-II for the uranium recovery industry.

FEATURES & BENEFITS

● FINE PARTICLE SIZE

95% all beads are in the assignation range; giving a lower pressure drop and superior kinetics.

● SUPERIOR PHYSICAL STABILITY

Over 93% sphericity combined with high crush strengths and uniform particle size provide greater resistance to bead breakage due to mechaical, thermal or osmotic stresses.

● HIGH TOTAL CAPACITY

The  high  total  capacity  of  ZGA307  allows  greater  operating  capacity  in applications.

ITS PHYCIAL & CHEMICAL PROPERTIES

CHEMICAL AND PHYSICAL STABILITY

ZGA307  gel  strong  base  anion  exchange  resin  is  insoluble  in  moderately concentrated  acids,  alkalis  and  all  common  organic solvents. The  resin  has  high operating capacity and excellent mechanical stability. It has good bead strength and excellent integrity, a minimum of 95%. It demonstrates a high resistance to attrition from all stresses, physical, thermal and osmotic. Usually it has a longer service life. However, exposure to significant amounts of free chlorine, hypochlorite ions, or other strong oxidizing agents over a priod of time will degrade the resin and break down the crosslinking. This can reduce the ion exchange capacity or increase the moisture retention of the resin, decreasing its mechanical strength, and should be avoided. The resin in the hydroxide form under alkaline conditions will break down at temperaturers over about 70℃ . The quaternary ammonium group losses the nitrogen and becomes weak base group. The salt forms of the resin are at least more stable, but can still break down at higher temperature with loss of strong base capacity.

APPLICATIONS

● Demineralization

ZGA307  is  widely  used  in  multiple  and  mixed  bed  demineralizers,  wherever complete ion removal and physical and osmotic stability are required. Its high total capacity and low swelling on regeneration provides maximum operating capacity in deionization applications for all applications from ultra pure to waste water treatment and precious metal recoveries.

ZGA307 strongly anionic resin together with weak basic resin used in dual bed, prepares pure water and ultra pure water. The real density and particle size range of two resins are quite different. They can be easily separated.

● Desilicizers

ZGA307 can remove all ionized substances, including weak acids such as silica and  carbonic  acid  as  well  as  strong  acids,  sulfate  and  chloride.  Type  Ⅰ  anion exchanges have greater thermal and oxidation resistance than other types of strong base resins and can be operated at higher temperatures to insure low silica leakages. The resin operated in the hydroxide cycle is a very effective way of providing low silica and low hardness water for medium and high pressure boilers.

● Other applications

ZGA307 can widely be used in many fields, such as food industry, decolration of cane sugar and corn syrup, pharmaceutical industry, hydro-metallurgy and separation of antibiotic and bio-chemicals, recovery of metals and so on.