Ion exchange in molten salts. V. Potassium zeolite a as an ion exchanger in nitrate melts

M. Liquornik; Y. Marcus

doi:10.1021/j100685a019

Ion exchange in molten salts. V. Potassium zeolite a as an ion exchanger in nitrate melts

M. Liquornik^*, Y. Marcus

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The exchange of sodium and potassium ions between nitrate melts and zeolite at 350° shows that the potassium zeolite A, K₁₂(AlSiO₄)₁₂, behaves differently from the occluded sodium zeolite Na₂₂[(AlSiO₄)₁₂(NO₃)₁₀]; only after exchanging 7K⁺ with Na⁺ does partial occlusion of Na⁺NO₃^- ion pairs occur. Small amounts of K⁺ in the zeolite are sufficient to block the channels of the zeolite and interfere with the absorption of more nitrate ions. At 450° occlusion starts at much lower sodium concentration than at 350°. The order of selectivity is Ag > Li > Na > K for potassium zeolite and dilute solutions in a potassium nitrate melt.

Original language	English
Pages (from-to)	2523-2525
Number of pages	3
Journal	Journal of Physical Chemistry
Volume	75
Issue number	16
DOIs	https://doi.org/10.1021/j100685a019
State	Published - 1971
Externally published	Yes

Access to Document

10.1021/j100685a019

Cite this

@article{a916d0b744274a5a9d697c48335d5089,

title = "Ion exchange in molten salts. V. Potassium zeolite a as an ion exchanger in nitrate melts",

abstract = "The exchange of sodium and potassium ions between nitrate melts and zeolite at 350° shows that the potassium zeolite A, K12(AlSiO4)12, behaves differently from the occluded sodium zeolite Na22[(AlSiO4)12(NO3)10]; only after exchanging 7K+ with Na+ does partial occlusion of Na+NO3- ion pairs occur. Small amounts of K+ in the zeolite are sufficient to block the channels of the zeolite and interfere with the absorption of more nitrate ions. At 450° occlusion starts at much lower sodium concentration than at 350°. The order of selectivity is Ag > Li > Na > K for potassium zeolite and dilute solutions in a potassium nitrate melt.",

author = "M. Liquornik and Y. Marcus",

year = "1971",

doi = "10.1021/j100685a019",

language = "אנגלית",

volume = "75",

pages = "2523--2525",

journal = "Journal of Physical Chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "16",

}

TY - JOUR

T1 - Ion exchange in molten salts. V. Potassium zeolite a as an ion exchanger in nitrate melts

AU - Liquornik, M.

AU - Marcus, Y.

PY - 1971

Y1 - 1971

N2 - The exchange of sodium and potassium ions between nitrate melts and zeolite at 350° shows that the potassium zeolite A, K12(AlSiO4)12, behaves differently from the occluded sodium zeolite Na22[(AlSiO4)12(NO3)10]; only after exchanging 7K+ with Na+ does partial occlusion of Na+NO3- ion pairs occur. Small amounts of K+ in the zeolite are sufficient to block the channels of the zeolite and interfere with the absorption of more nitrate ions. At 450° occlusion starts at much lower sodium concentration than at 350°. The order of selectivity is Ag > Li > Na > K for potassium zeolite and dilute solutions in a potassium nitrate melt.

AB - The exchange of sodium and potassium ions between nitrate melts and zeolite at 350° shows that the potassium zeolite A, K12(AlSiO4)12, behaves differently from the occluded sodium zeolite Na22[(AlSiO4)12(NO3)10]; only after exchanging 7K+ with Na+ does partial occlusion of Na+NO3- ion pairs occur. Small amounts of K+ in the zeolite are sufficient to block the channels of the zeolite and interfere with the absorption of more nitrate ions. At 450° occlusion starts at much lower sodium concentration than at 350°. The order of selectivity is Ag > Li > Na > K for potassium zeolite and dilute solutions in a potassium nitrate melt.

UR - http://www.scopus.com/inward/record.url?scp=33947293229&partnerID=8YFLogxK

U2 - 10.1021/j100685a019

DO - 10.1021/j100685a019

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:33947293229

SN - 0022-3654

VL - 75

SP - 2523

EP - 2525

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 16

ER -

Ion exchange in molten salts. V. Potassium zeolite a as an ion exchanger in nitrate melts

Abstract

Access to Document

Other files and links

Fingerprint

Cite this