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[1]姜振胜,李玲,佟宏宇.湿法磷酸过滤脱色扩大性试验[J].武汉工程大学学报,2013,(04):82-86.[doi:103969/jissn 16742869201304018]
　JIANG Zhen sheng,LI Ling,TONG Hong yu.Expanding research of filtration and decolorization of wet process phosphoric acid[J].Journal of Wuhan Institute of Technology,2013,(04):82-86.[doi:103969/jissn 16742869201304018]
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湿法磷酸过滤脱色扩大性试验(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年04期
页码:
82-86
栏目:
化学与化学工程
出版日期:
2013-04-30

文章信息/Info

Title:
Expanding research of filtration and decolorization of wet process phosphoric acid
文章编号:
16742869(2013)04008205
作者:
姜振胜; 李玲; 佟宏宇
湖北大峪口化工有限责任公司，湖北 钟祥 431910
Author(s):
JIANG Zhensheng; LI Ling; TONG Hong yu
Hubei Dayukou Chemical Ltd，Zhongxiang 431910，China
关键词:
湿法磷酸; 脱色; 自动反洗表面过滤器
Keywords:
wet process phosphoric acid;  decolorization; automatic backwash surface filter
分类号:
TQ442
DOI:
103969/jissn 16742869201304018
文献标志码:
A
摘要:
湿法磷酸生产过程中，磷矿自身含有机质及精矿浆中有机浮选药剂会在硫酸萃取时碳化，造成产品磷酸呈黑色，进而影响后续产品的颜色.为解决某公司湿法磷酸发黑的问题，采用自动反洗表面过滤器进行连续性过滤脱色试验，验证了自动反洗表面过滤器用于湿法磷酸脱色的可行性，研究了滤膜材质对脱色周期的影响以及滤膜孔径大小和磷石膏预涂滤膜对脱色效果的影响.试验结果表明：自动反洗表面过滤器可以有效脱除湿法磷酸中的黑色颗粒状物质，使湿法磷酸颜色变浅；考虑到滤膜材质对滤膜使用周期的影响及滤膜孔径对滤膜运行时间和脱色后磷酸的颜色存在影响，建议选用表面光滑且易清理的6#滤膜.此外，将滤膜进行预涂后，过滤后的稀酸效果较未预涂效果好.
Abstract:
In the production of wet process phosphoric acid，phosphate rock which contains organic matter and concentrate organic flotation reagent was carbonized while extracted by sulphuric acid，which caused the phosphate acid into black, and then affected the subsequent product color. To solve a company problem that the wet process phosphoric acid was black，automatic backwash surface filter was used for filtering the decolorization of wet\|process phosphoric acid，and its feasibility for wet\|process phosphoric acid bleaching was verified. The effects of membrane material on the decolorization cycles and the membrane pore size and phosphogypsum predeposited membrane on the decolorization were studied. The results show that black granular material in wet process phosphoric acid can be effectively removed by automatic backwash surface filter, which causes the color of wet process phosphoric acid lighter; the color of decolorization phosphate becomes lighter and the running time becomes shorter with the smaller membrane pore size; the 6# membrane with smoothly surface and easy to clean should be used; the filtering effect of percoating is better than the filtering effect without precoating.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介：姜振胜（1967），男，湖北天门人，高级工程师.研究方向：选矿及磷化工.第35卷第4期2013年04月武汉工程大学学报JWuhanInstTechVol35No4Apr.2013
更新日期/Last Update: 2013-05-18