Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers

›› 2010, Vol. 18 ›› Issue (2): 346-350.

• RESEARCH NOTES • Previous Articles Next Articles

Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers

ZHANG Weidong, CUI Chunhua, YANG Yanqiang

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Received:2009-05-18 Revised:2009-10-16 Online:2010-04-28 Published:2010-04-28
Supported by:
Supported by the Program for New Century Excellent Talents in University(NCET-05-0122);the National Natural Science Foundation of China(20576008,20706003)

Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers

张卫东, 崔春花, 杨彦强

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

通讯作者: ZHANG Weidong,E-mail:zhangwd@mail.buct.edu.cn
基金资助:
Supported by the Program for New Century Excellent Talents in University(NCET-05-0122);the National Natural Science Foundation of China(20576008,20706003)

Abstract

Abstract: The extraction ability of organophosphorus extractant D2EHPA(di-2-ethylhexyl phosphoric acid) and hydroximic extractant Lix984N are investigated by the extraction equilibrium experiments.Effects of carrier concen-tration and organic/aqueous volume ratio on the mass transfer of hollow fiber renewal liquid membrane(HFRLM) are studied.Results show that,in the extracting process,kerosene and n-heptane are more suitable than methyl-isobutyl ketone,butylacetate and benzene as the diluents of D2EHPA or Lix984N.The favorable feed pH is 4.4 for D2EHPA and 2.6 for Lix984N.The mass transfer flux of HFRLM increases with carrier concentration and finally reaches a plateau.The mass transfer flux and the overall transfer coefficient increase with the organic/aqueous volume ratio,reach the maximum and then decrease.

Key words: mass transfer, copper(Ⅱ), di-2-ethylhexyl phosphoric acid(D2EHPA), Lix984N, carrier

摘要： The extraction ability of organophosphorus extractant D2EHPA(di-2-ethylhexyl phosphoric acid) and hydroximic extractant Lix984N are investigated by the extraction equilibrium experiments.Effects of carrier concen-tration and organic/aqueous volume ratio on the mass transfer of hollow fiber renewal liquid membrane(HFRLM) are studied.Results show that,in the extracting process,kerosene and n-heptane are more suitable than methyl-isobutyl ketone,butylacetate and benzene as the diluents of D2EHPA or Lix984N.The favorable feed pH is 4.4 for D2EHPA and 2.6 for Lix984N.The mass transfer flux of HFRLM increases with carrier concentration and finally reaches a plateau.The mass transfer flux and the overall transfer coefficient increase with the organic/aqueous volume ratio,reach the maximum and then decrease.

关键词: mass transfer, copper(Ⅱ), di-2-ethylhexyl phosphoric acid(D2EHPA), Lix984N, carrier

ZHANG Weidong, CUI Chunhua, YANG Yanqiang. Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers[J]. , 2010, 18(2): 346-350.

张卫东, 崔春花, 杨彦强. Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers[J]. , 2010, 18(2): 346-350.

References

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Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers

Mass Transfer of Copper(Ⅱ) in Hollow Fiber Renewal Liquid Membrane with Different Carriers

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