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Comparison of sorption of electrochemically generated V(IV) and V(V) onto selective sorbent

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F08%3A00019820" target="_blank" >RIV/60461373:22320/08:00019820 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Comparison of sorption of electrochemically generated V(IV) and V(V) onto selective sorbent

  • Original language description

    Reduction of V(V) to V(IV) was performed at carbon felt cathode at a constant potential of - 1500 mV vs. Ag/AgCl. Adsorption of vanadium species onto the sorbent Purolite D 4123 was investigated in the pH range 2.5 to 5. V(V) was efficiently adsorbed throughout pH range studied, whereas V(IV) was barely adsorbed at pHs of 2.5 to 3.5 and it was re-oxidized to V(V) at higher pHs. In column experiments, V(V) was strongly adsorbed . V(IV) broke through the column readily and reached the inlet concentrationwithin 60 BV. Desorption was carried out with combination of 1 M HCl and 1M NaOH, consequently, and the total vanadium recovery was about 100 %

  • Czech name

    Porovnání sorpce elektrochemicky generovaného V(IV) a V(V) na selektivním sorbentu

  • Czech description

    Redukce V(V) na V(IV) byla provedena na katodě z uhlíkové plsti za konstantního potenciálu 1500 mV vs. Ag/AgCl. Sorpce vanadu na sorbentu D 4123 byla sledována v rozmezí pH 2,5 až 5. V(V) byl sorbován v celém rozmezí pH zatímco V(IV) se v rozmezí pH 2,5až 3,5 sorboval pouze zanedbatelně. Při vyšším pH docházelo ke zpětné oxidaci na V(V). Při kolonových experimentech byl V(V)silně adsorbován. V(IV) se na koloně zachycoval jen slabě a dosáhl vstupní koncentrace po projití 60ti kolonových objemů. Desorpcevanadu byla provedena postupně pomocí 1 M HCl a 1M NaOH a celkové vytěsněné množství bylo skoro 100%.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CI - Industrial chemistry and chemical engineering

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Ion Exchange Letters

  • ISSN

    1803-4039

  • e-ISSN

  • Volume of the periodical

    1

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    3

  • Pages from-to

  • UT code for WoS article

  • EID of the result in the Scopus database