亲水吸湿性功能材料用于有机相除水的研究
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摘要
在反萃取过程中出现有机相夹带水相现象,容易引起有机相再生后的废液中铀含量升高,造成环境污染。试验筛选出改性纤维和棉纱亲水吸湿功能材料,对有机相中水分的分析方法进行了比选,并开展了2种亲水吸湿性材料对30%TBP+磺化煤油的反萃取过程的除水试验。结果表明:对于30%TBP+磺化煤油的反萃取体系,卡尔费休库仑法是最适宜的水分分析法;改性纤维和棉纱均可实现反萃取过程中有机相夹带水的100%去除。
In the re-extraction process,the water phase of entrainment in organic phase can be formed,which can lead to high uranium content in the waste liquid after the regeneration organic phase and environmental pollution.Two suitable hydrophilic function materials,named as modified fibers and cotton yarn were selected by experiment.The detection method of moisture in organic phase was compared and chosen.The dewatering experiment was carried out on the re-extraction process of 30%TBP+sulfonated kerosene with two hydrophilic materials.The results show that for the re-extraction system of 30% TBP+kerosene,Karl fischer coulomb method is the most suitable for water content analysis,and the hydrophile function fibre and cotton yarn can make 100% removal of organic phase entrainment in the process of re-extraction.
In the re-extraction process,the water phase of entrainment in organic phase can be formed,which can lead to high uranium content in the waste liquid after the regeneration organic phase and environmental pollution.Two suitable hydrophilic function materials,named as modified fibers and cotton yarn were selected by experiment.The detection method of moisture in organic phase was compared and chosen.The dewatering experiment was carried out on the re-extraction process of 30%TBP+sulfonated kerosene with two hydrophilic materials.The results show that for the re-extraction system of 30% TBP+kerosene,Karl fischer coulomb method is the most suitable for water content analysis,and the hydrophile function fibre and cotton yarn can make 100% removal of organic phase entrainment in the process of re-extraction.
引文
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[3]徐晓辰.吸湿排汗聚酯纤维的开发及应用[J].合成纤维,2002,31(6):9-12.
[4]冯金玲.水厂滤池滤料的分析比较[J].工业用水与废水,2013,44(5):54-55.
[5]陈雪萍,翁志学,黄志明.高吸水性树脂的结构与吸水机理[J].化工新型材料,2002(3):19-21.
[6]王孝华,谭世语,聂明.超强吸水聚合物的研究进展[J].化学推进剂与高分子材料,2003,1(3):14-17.
[7]蔺国盛,刘淑媛.有色冶金萃取水相除油工艺及设备[J].中国有色冶金,2008,8(4):26-29.
[8]段效威.新型增效分子筛的制备及其在ABS阻燃应用中的研究[D].大连:大连工业大学,2008.
[9]唐冬芬,邓高峰,王宏恩,等.以活性炭为主的吸附类空气净化技术发展综述[J].洁净与空调技术,2010(3):6-9.
[10]李志远,李智,陈丽华,等.醋酸产品中微量碘及金属离子的脱除方法[J].中氮肥,2012(3):58-61.