회중석의 염소화 생성물로부터 고순도 WO3의 합성

엄명헌; 박용성; 이철태

Journal of the Korean Industrial and Engineering Chemistry, Vol.4, No.4, 798-806, December, 1993

Export Citation

회중석의 염소화 생성물로부터 고순도 WO3의 합성

Synthesis of High Purity Tungsten Oxide with Tungsten Chloride from the Chlorination of Scheelite

엄명헌, 박용성, 이철태

초록

본 연구는 유동층 반응기에서 회중석의 염소화 생성물인 텅스텐염화물로부터 고순도 tungsten oxide를 합성하기 위해 수행하였다. 텅스텐염화물은 용해시작 불과 1분 이내에 거의 완전히 H₂O₂ 용액에서 용해되었으며 적정용해조건은, H₂O₂의 농도 0.5%, 용해온도 15℃, 텅스텐 염화물 0.5g에 대한 H₂O₂ 용액의 양은 30m1이었다. 이 조건하에서 얻어진 용해 생성물로부터 제조되어진 텅스텐 산화물은 순도 99.53%의 WO₃였다.

In this study we developed the synthesis of high purity tungsten oxide from tungsten chlorides obtained by the chlorination of scheelite in a fluidized bed reactor. Within a minute of dissolution time, tungsten chlorides were almost dissolved in H₂O₂ solution. The proper dissolution conditions for the tungsten chlorides were as follows : H₂O₂ concentration 0.5%, dissolution temperature 15℃ and H₂O₂ amount to 0.5g tungsten chlorides 30m1. Under above conditions, the tungsten oxide prepared from dissolved product was identified as WO₃ and the purity of WO₃ was 99.53%.

[References]

Svanstrm EK, Ramquist LH, Canadian Patent, 887568 (1971)
Riddle RN, Am. J. Sci., 38, 160 (1989)
Jeffries Z, J. Inst. Metals, 20, 109 (1918)
Meerson GA, Kharskii NN, Tsuet. Metall., 30, 41 (1957)
Ryan W, Nonferrous Extraction Metallurgy, London (1968)
Maslenitski IN, Tsvetneye Metal, No(4-5) (Chem. Abs. 34: 3521) (1939)
Henderson AW, Rohoads SC, Brown RR, U.S. Burean Mines, RI-6612 (1965)
Tress JE, Campbell TT, Block FF, U.S. Burean Mines, RI-6835 (1966)
Um MH, Lee CT, J. Korean Ind. Eng. Chem., 4(1), 82 (1993)
Um MH, Park YS, Lee CT, J. Korean Ind. Eng. Chem., 4(3), 591 (1993)
Blomstrand CW, J. Prakt. Chem., 82, 421 (1961)
ASTM card H18-1418
ASTM card H2-1138

[1] Svanstrm EK, Ramquist LH, Canadian Patent, 887568 (1971)

[2] Riddle RN, Am. J. Sci., 38, 160 (1989)

[3] Jeffries Z, J. Inst. Metals, 20, 109 (1918)

[4] Meerson GA, Kharskii NN, Tsuet. Metall., 30, 41 (1957)

[5] Ryan W, Nonferrous Extraction Metallurgy, London (1968)

[6] Maslenitski IN, Tsvetneye Metal, No(4-5) (Chem. Abs. 34: 3521) (1939)

[7] Henderson AW, Rohoads SC, Brown RR, U.S. Burean Mines, RI-6612 (1965)

[8] Tress JE, Campbell TT, Block FF, U.S. Burean Mines, RI-6835 (1966)

[9] Um MH, Lee CT, J. Korean Ind. Eng. Chem., 4(1), 82 (1993)

[10] Um MH, Park YS, Lee CT, J. Korean Ind. Eng. Chem., 4(3), 591 (1993)

[11] Blomstrand CW, J. Prakt. Chem., 82, 421 (1961)

[12] ASTM card H18-1418

[13] ASTM card H2-1138