Fluorine Adsorbent/Desorbent Applicable Electrolytic Solution for Zinc Electro-Refining and Method for Removing Fluorine Using the Fluorine Adsorbent/Desorbent

A method comprising a step of removing fluorine from a zinc electrolytic solution containing fluorine, the method for removing fluorine comprising:

• a fluorine adsorption step a of adsorbing the fluorine to a fluorine adsorbent/desorbent comprising a basic iron sulfate group iron compounds;
• a first solid/liquid separating step b of separating the solution obtained in the step a into a solid and a liquid;
• a fluorine desorption step c of putting the solid separated in the step b into an alkaline solution to desorb the fluorine from the fluorine adsorbent/desorbent;
• a second solid/liquid separating step d of separating the solution obtained in the step c into a solid and a liquid;
• and
• a fluorine adsorbent/desorbent reuse step e of sending back the solid separated in the step d or a solution after dissolving the solid in an acid solution to the step a as the fluorine adsorbent/desorbent in the step a.

A method comprising a step of removing fluorine from a zinc electrolytic solution containing fluorine, the method for removing fluorine comprising:

• a fluorine adsorption step a of adsorbing the fluorine to an oxy iron hydroxide group fluorine adsorbent/desorbent;
• a first solid/liquid separating step b of separating the solution obtained in the step a into a solid and a liquid;
• a fluorine desorption step c of putting the solid separated in the step b into an alkaline solution to desorb the fluorine from the fluorine adsorbent/desorbent;
• a second solid/liquid separating step d of separating the solution obtained in the step c into a solid and a liquid;
• and
• a fluorine adsorbent/desorbent reuse step e of sending back the solid separated in the step d to the step a as the fluorine adsorbent/desorbent in the step a.

A method comprising a step of removing fluorine from a zinc electrolytic solution containing fluorine, the method for removing fluorine comprising:

• a fluorine adsorption step a of adsorbing the fluorine to an iron oxide group fluorine adsorbent/desorbent;
• a first solid/liquid separating step b of separating the solution obtained in the step a into a solid and a liquid;
• a fluorine desorption step c of putting the solid separated in the step b into an alkaline solution to desorb the fluorine from the fluorine adsorbent/desorbent;
• a second solid/liquid separating step d of separating the solution obtained in the step c into a solid and a liquid;
• and
• a fluorine adsorbent/desorbent reuse step e of sending back the solid separated in the step d to the step a as the fluorine adsorbent/desorbent in the step a.

A method being characterized in that it comprise steps of removing fluorine from a zinc electrolytic solution containing fluorine, the method for removing fluorine comprising:

• a fluorine adsorption step a of adsorbing the fluorine to a ferric hydroxide group fluorine adsorbent/desorbent;
• a first solid/liquid separating step b of separating the solution obtained in the step a into a solid and a liquid;
• a fluorine desorption step c of putting the solid separated in the step b into an alkaline solution to desorb the fluorine from the fluorine adsorbent/desorbent;
• a second solid/liquid separating step d of separating the solution obtained in the step c into a solid and a liquid;
• and
• a fluorine adsorbent/desorbent reuse step e of sending back the solid separated in the step d or a solution after dissolving the solid in an acid solution to the step a as the fluorine adsorbent/desorbent in the step a.

A method comprising a step of removing fluorine from a zinc electrolytic solution containing fluorine, the method for removing fluorine comprising:

• a fluorine adsorption step a of adsorbing the fluorine to a basic zinc sulfate group fluorine adsorbent/desorbent;
• a first solid/liquid separating step b of separating the solution obtained in the step a into a solid and a liquid;
• a first solid/liquid separating step b of separating the solution obtained in the step a into a solid and a liquid;
• a fluorine desorption step c of putting the solid separated in the step b into an alkaline solution to desorb the fluorine from the fluorine adsorbent/desorbent;
• a second solid/liquid separating step d of separating the solution obtained in the step c into a solid and a liquid;
• and
• a fluorine adsorbent/desorbent reuse step e of sending back the solid separated in the step d or a solution after dissolving the solid in an acid solution to the step a as the fluorine adsorbent/desorbent in the step a.