发明名称 |
METHOD FOR CYCLICALLY PREPARING TITANIUM SPONGE AND COPRODUCING POTASSIUM CRYOLITE USING POTASSIUM FLUOTITANATE AS INTERMEDIATE MATERIAL |
摘要 |
A method for cyclically preparing titanium sponge and coproducing potassium cryolite using potassium fluotitanate as an intermediate material, which includes the following steps: A) adding hydrofluoric acid to titaniferous iron concentrate to enable a reaction to form fluotitanic acid; B) adding potassium sulphate to the fluotitanic acid to enable a reaction to form the potassium fluotitanate; C) putting the potassium fluotitanate into a reactor, adding aluminium to react with the potassium fluotitanate to form the titanium sponge and potassium cryolite; D) extracting the potassium cryolite and sending it to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and potassium sulphate, aluminium potassium sulphate; collecting the hydrogen fluoride gas and dissolving it into water to obtain a hydrofluoric acid aqueous solution; E) recycling the obtained hydrofluoric acid aqueous solution to Step A to leach the titaniferous iron concentrate.
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申请公布号 |
US2013098207(A1) |
申请公布日期 |
2013.04.25 |
申请号 |
US201213708955 |
申请日期 |
2012.12.08 |
申请人 |
MATERIALS CO.,LTD SHENZHEN SUNXING LIGHT ALLOYS;SHENZHEN SUNXING LIGHT ALLOYS MATERIALS CO.,LTD |
发明人 |
CHEN XUEMIN;YU YUEMING;YE QINGDONG;YANG JUN;ZHOU ZHI;CHEN XINYI |
分类号 |
C22B34/12;C01D3/02 |
主分类号 |
C22B34/12 |
代理机构 |
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代理人 |
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