Specialty absorbents, solidification agents, ion exchange media and dust suppression.

Ion Exchange Media

WTZ 100

WTZ 100 is characterized by its high surface area, high cation exchange capacity (CEC), physical durability, and pozzolanic properties. Its chemical composition, high CEC, and abrasion resistance make it an ideal water filtration media, and its pozzolanic properties prove highly valuable in cementitious products. WTZ 100’s unique chemical and physical properties also allow for gas adsorption and water absorption/desorption, making it ideal for multiple industrial and environmental end-use applications, including radioactive waste control, aquaculture, water filtration and purification.

TYPICAL PROPERTIES

Form Granules & Powders
Color Reddish / Tan (dry brightness 40)
Ring Members 8
Crystal Size Less than 1 micron
Crystallinity +90%
Density 1.73 g/cm3
Pore Size 4.1 by 3.7 Angstroms
Effective Pore Diameter 4.3 Angstroms
Cavity Size 11.0 by 6.6 Angstroms
Total Pore Volume .468 cm3/g
Surface Area 520 m2/g
Crystal Void Volume .47 cm3/cm3
Packing Density Approx.  (40 – 44 lbs/ft3)
SiO2/Al2O3 Ratio Approx. 4:1
MOH’s Hardness 4 – 5
Moisture as Packaged Less than 20% by Weight
pH of 1% Dispersion 8.5
Stability pH of 3 through 12
Ion Exchange Capacity 2.50 meq/g
Sorption Capacity >15 wt. % H2O at 10% RH

TYPICAL CHEMICAL ANALYSIS (Anhydrous Basis)

SiO2 Al2O3 Fe2O3 CaO MgO Na2O K2O Dominant Cation
68.1 18.59 2.84 0.27 0.75 8.32 1.12 Na

EXCHANGE SELECTIVITIES

Tl+>Cs+>K+>Ag+>Rb+>NH4+>Pb2+>Na+ = Ba2+>Sr2+>Ca2+>Li+

EXCHANGE OF HEAVY METAL IONS

Weight Percent of Heavy Metals Retained in Anhydrous CABSORB after Ion Exchange from a .10 mg/ml solution:

AgNo3, Pb(NO3)2, CoSO4 and a 0.025 mg/ml solution of CuSO4 at the Initial pH Indicated for each Solution.

Aq Pb Cu Co
pH Wt% pH Wt% pH Wt% pH Wt%
5.30 21.85 3.80 15.27 3.43 3.17 2.91 2.82
WTZ 200

WTZ 200 is unique among natural zeolites. It is characterized by its light weight, extremely high surface area, and high cation exchange capacity (CEC). Its chemical composition and affinity for radionuclides make it a proven and highly effective media for nuclear remediation applications, and its high surface area is valued in gas separation and specialty desiccant markets. End-use applications of WTZ 200 include hazardous waste cleanup of arsenic and thallium, radioactive waste control, personal hygiene products, and air and water filtration and purification.

TYPICAL PROPERTIES

Form Granules & Powders
Color Tan – Green
Pore Diameter 4.0 Angstroms
Pore Volume 15%
Specific Surface Area 40 m2/g
Bulk 45 – 80 lbs/ft3

760 – 1,283 kg/m3

Solid Density 100 lbs/ft3

1,603 kg/m3

Alkali Stability pH of 7 – 10
Acid Stability Ph of 3 – 7
Thermal Stability 1,202  ͦF

650  ͦC

Ion Exchange Capacity 1.85 milliequivalents/g

TYPICAL CHEMICAL ANALYSIS

SiO2 Al2O3 Fe2O3 CaO MgO Na2O K2O MnO TiO2
69.1 11.9 0.7 0.8 0.4 3.5 3.8 0.02 0.1

MAJOR EXCHANGEABLE CATIONS

Rb+ Na+ Ba+2 Mg+2 Li+ Ag+ Sr+2 Fe+3 K+ Cd+2
Cu+2 Co+3 Cs+ Pb+2 Ca+2 Al+3 NH+4 Zn+2 Hg+2 Cr+3

Need help understanding which products fit your application?

With a little information on your waste stream or project, Fluid Tech will help you define the optimal product for your needs.
Waste Form Questionnaire
Recommended Media Matrix