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[1]周晶晶,姜振胜,李玲.有机溶剂在湿法磷酸脱色中的应用[J].武汉工程大学学报,2012,(3):11-14.
　ZHOU Jing\|jing,JIANG Zhen\|sheng,LI Ling.Application of organic solvent in decoloration of wet\|process phosphoric acid[J].Journal of Wuhan Institute of Technology,2012,(3):11-14.
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年3期
页码:
11-14
栏目:
化学与化学工程
出版日期:
2012-03-31

文章信息/Info

Title:
Application of organic solvent in decoloration of
wet\|process phosphoric acid
文章编号:
16742869(2012)03001104
作者:
周晶晶;    姜振胜;   李玲
湖北大峪口化工有限责任公司， 湖北  钟祥  431910
Author(s):
ZHOU Jing\|jing; JIANG Zhen\|sheng; LI Ling
Hubei Dayukou Chemical Ltd.，Zhongxiang 431910，China
关键词:
湿法磷酸; 黑色; 柴油; 脱色
Keywords:
wet\|process phosphoric acid;  black;  diesel oil;  decoloration
分类号:
TQ126.3+5
DOI:
-
文献标志码:
AAdoi:103969/jissn16742869201203003
摘要:
为了研究有机溶剂在湿法磷酸脱色的效果,以黑色的湿法磷酸为原料，分别使用四氯化碳、氯仿、柴油对湿法磷酸进行预脱色，再用活性炭对预脱色后的酸进行脱色.实验结果表明，柴油的预脱色效果最明显；最佳脱色条件为：湿法浓磷酸和柴油的质量比为5∶1、萃取分离时间1 h，活性炭的用量为湿法磷酸质量的1.5%、活性炭脱色时的温度为60 ℃、脱色时间为30 min，采用目测法观察，湿法磷酸从黑色基本变成无色；湿法稀磷酸和柴油的质量比为13∶1、萃取分离时间为20 min，活性炭的用量为湿法磷酸质量的0.25%、活性炭脱色温度为60 ℃、脱色时间为30 min，湿法稀磷酸从黑色变成无色.
Abstract:
The black wet\|process phosphoric acid was discolored by separately using carbon tetrachloride,chloroform,diesel oil,then using activated carbon.The experimental results showed that the effect of decolorization with diesel oil was the most obvious; the best decoloration conditions of wet\|process phosphoric acid were:the mass ratio of wet\|process phosphoric acid to diesel oil was 51∶1,the time of extraction and separation was 1 h, the amount of activated carbon was 1.5%,the temperature was 60 ℃,and the decoloring time was 30 min.Under those conditions,the color of black wet\|process phosphoric acid was from black to colorless with eye\|measurement observation. The best decoloration conditions of wet rare phosphoric acid are the mass ratio of wet rare phosphoric acid to diesel oil is 13∶1,the time of extraction and separation was 20 min,the dosage of activated carbon for wet\|process phosphoric acid is 0.25%,the temperature is 60 ℃,and the decoloring time is 30 min; under those conditions,the color of wet rare phosphoric acid is from black to colorless.

参考文献/References:

［1］郭昌明，黎铉海，刘丽芬,等. 湿法磷酸一步法脱色脱氟工艺脱色因素研究［J］. 无机盐工业，2009,41(2):27-29.
［2］杨略，费斌，余响林,等. 改性活性炭用于湿法磷酸脱色的研究［J］.当代化工,2011,40(1):38-40.
［3］李燕风，李军，许晨,等.活性炭脱除湿法磷酸色素的研究［J］.无机盐工业，2008,40(3）:52-54.
［4］陈亮，李军，钟本和.浓缩湿法磷酸脱色研究［J］.无机盐工业，2005,37(7):21-22.

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