Fluorine adsorbent/desorbent applicable in electrolytic solution for zinc electro-refining and method for removing fluorine using the fluorine adsorbent/desorbent

Fluorine adsorbent/desorbent applicable in electrolytic solution for zinc electro-refining and method for removing fluorine using the fluorine adsorbent/desorbent

In order to remove fluorine from a zinc containing solution before zinc electro-refining in lower cost, fluorine is removed by adsorption from a zinc containing solution (leached solution) utilizing the character of the predetermined iron compound or zinc compound which can adsorb fluorine in an aci...

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Hauptverfasser: SAKATA MASATAMI, HATA HIROSHI, NISHINA KAZUHIKO, HAIKI KENJI
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Sprache:eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator SAKATA MASATAMI
HATA HIROSHI
NISHINA KAZUHIKO
HAIKI KENJI
description In order to remove fluorine from a zinc containing solution before zinc electro-refining in lower cost, fluorine is removed by adsorption from a zinc containing solution (leached solution) utilizing the character of the predetermined iron compound or zinc compound which can adsorb fluorine in an acid solution and desorb fluorine in an alkaline solution. The fluorine adsorbent/desorbent having adsorbed fluorine is treated in an alkaline solution, to desorb the fluorine. This makes it possible to regenerate the fluorine adsorbent/desorbent. Further, an electrolytic solution for zinc electro-refining can be prepared in lower cost, thus total zinc refining costs can be reduced.
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Fluorine adsorbent/desorbent applicable in electrolytic solution for zinc electro-refining and method for removing fluorine using the fluorine adsorbent/desorbent
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