Manufacturing method of ferrite with increased half-life
The present invention relates to a method for manufacturing ferrite with increased half-life and, more specifically, to a method for manufacturing ferrite with increased half-life which can maintain the concentration at over 80% after more than 20 days since the autolysis phenomenon is slowed down d...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | The present invention relates to a method for manufacturing ferrite with increased half-life and, more specifically, to a method for manufacturing ferrite with increased half-life which can maintain the concentration at over 80% after more than 20 days since the autolysis phenomenon is slowed down due to the manufacture of ferrite (Na_2FeO_4) by adding NaOCI aqueous solution to NaFeO_2 intermediate solution and reacting the NaFeO_2 intermediate solution after adding Fe powder to an aqueous NaOH solution and heating the aqueous NaOH solution to prepare a NaFeO_2 intermediate solution.
본 발명은 반감기가 증가된 페라이트 제조 방법에 관한 것으로, 더욱 상세하게는 NaOH 수용액에 Fe 분말을 투입하고 가열하여 NaFeO2 중간체 용액을 제조한 후, NaFeO2 중간체 용액에 NaOCl 수용액을 투입하여 반응시켜 페라이트(Na2FeO4)를 제조하는 것에 의해, 자가분해 현상이 늦춰져서 20일 이상 경과 후에서 약 80% 이상의 농도를 유지할 수 있는 반감기가 증가된 페라이트 제조 방법에 관한 것이다. |
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