Two phillipsite-like phases have been synthesized at 80°C treating a rhyolitic pumice in a mixed Na+-K+ alkaline environment, having different Na+/K+ molar ratios. The synthesized samples, displaying distinct x-ray diffraction patterns, have been characterized as regards their ion exchange properties. Ion exchange isotherms for the cation pairs Na/NH4, Na/Ba, Na/K and Na/Ca have been obtained and the relevant thermodynamic equilibrium constants calculated with the help of a computer program. Both phillipsite-like phases revealed an excellent to good selectivity for Ba, NH4 and K and a substantial unselectivity for Ca, in substantial accordance with previous results obtained with a sedimentary phillipsite. Nevertheless, the different shapes ...
If mixed aqueous solutions of K+ and Na+ ions are allowed to percolate through flakes of K-and Na-ve...
Ion exchange has been studied in zeolite MAP, a synthetic gismondine used as a commercial detergent ...
With the purpose to evaluate the possible use of a phillipsite-rich tuff, in place of the naturally ...
Two phillipsite-like phases have been synthesized at 80°C treating a rhyolitic pumice in a mixed Na+...
Abstract--Exchange isotherms for the pairs Na-K and Na-Ca were measured by use of 0.1 N solutions at...
Different ion exchange selectivities for Cs of two phillipsites, one sedimentary and one synthetic, ...
Phillipsite is one of the main components of the sedimentary zeolite-rich rocks called zeolitites us...
Cs and Sr exchange reactions for Na on sedimentary, hydrothermal and synthetic phillipsites are stud...
Different ion exchange selectivities for Cs of two phillipsites, one sedimentary and one synthetic, ...
Merlinoite, a rare natural zeolite, was synthesized by hydrothermal treatment of a natural glass (rh...
Merlinoite, a rare natural zeolite, was synthesized by hydrothermal treatment of a natural glass (rh...
The cation exchange properties of Na-exchanged phillipsite and chabazite for Ba2+ and Co2+, two cati...
Phillipsite (PHI) was synthesized in Na-K form, ion exchanged with NH4NO3 and compared with its natu...
With the purpose to evaluate the possible use of a phillipsite-rich tuff, in place of the naturally ...
If mixed aqueous solutions of K+ and Na+ ions are allowed to percolate through flakes of K-and Na-ve...
Ion exchange has been studied in zeolite MAP, a synthetic gismondine used as a commercial detergent ...
With the purpose to evaluate the possible use of a phillipsite-rich tuff, in place of the naturally ...
Two phillipsite-like phases have been synthesized at 80°C treating a rhyolitic pumice in a mixed Na+...
Abstract--Exchange isotherms for the pairs Na-K and Na-Ca were measured by use of 0.1 N solutions at...
Different ion exchange selectivities for Cs of two phillipsites, one sedimentary and one synthetic, ...
Phillipsite is one of the main components of the sedimentary zeolite-rich rocks called zeolitites us...
Cs and Sr exchange reactions for Na on sedimentary, hydrothermal and synthetic phillipsites are stud...
Different ion exchange selectivities for Cs of two phillipsites, one sedimentary and one synthetic, ...
Merlinoite, a rare natural zeolite, was synthesized by hydrothermal treatment of a natural glass (rh...
Merlinoite, a rare natural zeolite, was synthesized by hydrothermal treatment of a natural glass (rh...
The cation exchange properties of Na-exchanged phillipsite and chabazite for Ba2+ and Co2+, two cati...
Phillipsite (PHI) was synthesized in Na-K form, ion exchanged with NH4NO3 and compared with its natu...
With the purpose to evaluate the possible use of a phillipsite-rich tuff, in place of the naturally ...
If mixed aqueous solutions of K+ and Na+ ions are allowed to percolate through flakes of K-and Na-ve...
Ion exchange has been studied in zeolite MAP, a synthetic gismondine used as a commercial detergent ...
With the purpose to evaluate the possible use of a phillipsite-rich tuff, in place of the naturally ...