ION EXCHANGE AND ELECTROCHEMICAL PROPERTIES OF ZIRCONYL PHOSPHATES

Journal Article · Mon Oct 21 04:00:00 EDT 1963 · Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals

OSTI ID:4137897

Nikol'skii, B P; Materova, E A; Skabichevskii, P A

A zirconyl phosphate ion exchanger was obtained by precipitating zirconium oxychloride, chloride, or nitrate with phosphoric acid at room temperature, filtering off the precipitate, and drying at 120 deg C. The composition of the zirconyl phosphate precipitate was determined as K = moles of ZrO/sub 2// moles of P/sub 2/O/sub 5/, which varied from K = 1.07 to 2.98. The value of K increased on decreasing the acidity of the solution, and on increasing the ratio of ZrO/sub 2//P/sub 2/O/sub 5/ in the initial solution. The exchange capacity of the zirconyl phosphate was determined by titrating with caustic. The exchange capacity depends on the pH of the contacting solution, and decreases with increasing value of K at any particular pH. The electrical conductivity decreases with increasing value of K. The double-charged Ca/sup 2+/ ion is absorbed more strongly than the singly-charged Na/sup +/ in acid or neutral solution. The following order is obtained if the ions are arranged with respect to decreasing affinity for zirconyl phosphate (K = 1): Cu/sup 2+/> Zn /sup 2+/ >Ba/sup 2+/ > Ca/sup 2+/> Mg/sup 2+/> Na/sup +/ > Li/sup 2+/. Zirconyl phosphate ion exchangers with K> 1 can absorb anions from an acid solution. These inorganic ion exchangers are not subject to swelling, and are stable to radiation damage and high temperature. (TTT)

• Research Organization: Leningrad State Univ.
• NSA Number: NSA-18-005269
• OSTI ID: 4137897
• Journal Information: Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals, Journal Name: Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals Vol. Vol: 152; ISSN DANKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDITY
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CATIONS
CHEMISTRY
CHLORIDES
COPPER COMPOUNDS
EFFICIENCY
ELECTRIC CONDUCTIVITY
EVAPORATION
EXPANSION
FILTERS
HIGH TEMPERATURE
ION EXCHANGE
ION EXCHANGE MATERIALS
LITHIUM COMPOUNDS
MAGNESIUM COMPOUNDS
OXYCHLORIDES
PHOSPHORIC ACID
PHOSPHORUS OXIDES
PRECIPITATION
PREPARATION
QUANTITY RATIO
RADIATION EFFECTS
SODIUM COMPOUNDS
SOLUTIONS
STABILITY
ZINC COMPOUNDS
ZIRCONIUM CHLORIDES
ZIRCONIUM NITRATES
ZIRCONIUM OXIDES
ZIRCONIUM PHOSPHATES