发明名称 |
METHOD FOR CYCLICALLY PREPARING MONOMER BORON AND COPRODUCING POTASSIUM CRYOLITE USING POTASSIUM FLUOBORATE AS INTERMEDIATE MATERIAL |
摘要 |
A method for cyclically preparing monomer boron and coproducing potassium cryolite using potassium fluoborate as an intermediate material, which includes following steps: A) adding hydrofluoric acid to boric acid or boron oxide to enable a reaction to form fluoboric acid; B) adding a potassium sulphate aqueous solution to the fluoboric acid to enable a reaction to form the potassium fluoborate; C) putting the potassium fluoborate into a reactor, adding aluminium to react with the potassium fluoborate to form the monomer boron and potassium cryolite; D) extracting the potassium cryolite, sending the potassium cryolite to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and aluminium potassium sulphate, potassium sulphate, collecting the hydrogen fluoride gas and dissolving it into water to obtain the hydrofluoric acid; E) recycling the obtained hydrofluoric acid to Step A to leach the boric acid or boron oxide.
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申请公布号 |
US2013095023(A1) |
申请公布日期 |
2013.04.18 |
申请号 |
US201213708959 |
申请日期 |
2012.12.08 |
申请人 |
SHENZHEN SUNXING LIGHT ALLOYS MATERIALS CO., LTD;SHENZHEN SUNXING LIGHT ALLOYS MATERIALS CO.,LTD |
发明人 |
CHEN XUEMIN;YU YUEMING;YE QINGDONG;YANG JUN;ZHOU ZHI |
分类号 |
C01B35/02 |
主分类号 |
C01B35/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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