METHOD FOR MANUFACTURING TUNGSTEN OXIDE AND TUNGSTEN OXIDE MANUFACTURED BY THE SAME
The present invention relates to a method for producing tungsten oxide via a wet-type process, and tungsten oxide produced thereby. The method for producing tungsten oxide comprises the following steps: eluting tungstic acid by inserting an acidic solution into a tungstate aqueous solution; and acqu...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | The present invention relates to a method for producing tungsten oxide via a wet-type process, and tungsten oxide produced thereby. The method for producing tungsten oxide comprises the following steps: eluting tungstic acid by inserting an acidic solution into a tungstate aqueous solution; and acquiring tungsten oxide from the tungstic acid. The elution step involves the use of a first additive containing ammonium compound, and a second additive containing at least one of hydrogen peroxide and hydrofluoric acid. According to the present invention, it is possible to reduce production costs for tungsten oxide.
본 기술은 습식공정을 이용한 텅스텐산화물 제조 방법 및 이에 의해 제조된 텅스텐산화물에 관한 것이다. 본 기술의 텅스텐산화물 제조 방법은, 텅스텐산염 수용액에 산성용액을 투입하여 텅스텐산을 석출시키는 단계; 및 상기 텅스텐산으로부터 텅스텐산화물을 획득하는 단계;를 포함하되, 상기 석출시키는 단계는, 암모늄화합물을 포함하는 제1 첨가제와, 과산화수소 및 불산 중 적어도 하나를 포함하는 제2 첨가제를 사용한다. 본 기술에 따르면, 텅스텐산화물 제조 비용을 절감할 수 있다. |
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