| 一种副产石膏晶须的湿法磷酸新工艺 |
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| 引用本文： | 高学顺,陈江,陈学玺.一种副产石膏晶须的湿法磷酸新工艺[J].无机盐工业,2011,43(10):51-53. |
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| 作者姓名： | 高学顺 陈江 陈学玺 |
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| 作者单位： | 青岛科技大学，山东青岛 266042 |
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| 基金项目： | 国家自然科学基金(20876082) |
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| 摘 要： | 将传统湿法磷酸的浸取过程分为磷矿分解和石膏结晶两个过程，分别在两个化学反应器中进行。在这两个相互独立的反应器中间添加液固分离装置，不仅能使副产物磷石膏的白度提高到95%以上，而且，在结晶反应温度为90 ℃、硫酸质量分数为30%、加料方式采用一次性加料、陈化时间为40 min、搅拌强度为250 r/min条件下，能得到长径比达到50以上的磷石膏晶须。
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| 关 键 词： | 湿法磷酸 磷石膏 石膏晶须 |
New technology of by-producting gypsum whisker in wet-process phosphoric acid production |
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| Gao Xueshun,Chen Jiang,Chen Xuexi.New technology of by-producting gypsum whisker in wet-process phosphoric acid production[J].Inorganic Chemicals Industry,2011,43(10):51-53. |
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| Authors: | Gao Xueshun Chen Jiang Chen Xuexi |
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| Affiliation: | Qingdao University of Science and Technology,Qingdao 266042,China |
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| Abstract: | Traditional wet-process phosphoric acid(WPA) leaching process was divided into two processes,i.e.phosphorite decomposition and gypsum crystallization,which were carried out in two individual chemical reactors.Liquid-solid separation devices were installed in the middle of these two independent reactors,which not only made white content of the by-product phosphogypsum increase to more than 95%,but also phosphogypsum whisker with slenderness ratio of more than 50 could be obtained under the conditions of crys... |
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| Keywords: | WPA phosphogypsum gypsum whisker |
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