SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*

CHEN Yiyong; MAO Xueqin; ZHU Dongwei

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SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*

Papers | Updated：2021-06-21

- SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*
- SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*
- 高分子科学（英文版） 1984年2卷第2期页码：159-168
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- 纸质出版：1984-12-20
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CHEN Yiyong, MAO Xueqin, ZHU Dongwei. SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*[J]. 高分子科学（英文版）, 1984,2(2):159-168.

CHEN Yiyong, MAO Xueqin, ZHU Dongwei. SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*[J]. 1984, 2(2): 159-168.
CHEN Yiyong, MAO Xueqin, ZHU Dongwei. SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*[J]. 高分子科学（英文版）, 1984,2(2):159-168. DOI：

CHEN Yiyong, MAO Xueqin, ZHU Dongwei. SYNTHESIS OF MACROPOROUS HUMIC ACID RESINS AND THEIR CHELATING PROPERTIES FOR HEAVY METAL IONS*[J]. 1984, 2(2): 159-168. DOI：

摘要

Macroporous HA resins (HAR) can be prepared in pearl form by grafting HA onto crosslinked PS through azo or through ester and / or ether linkages. At pH 13 and the HA / PSNH2 weight ratio 0.7—1.0

PSN2+Cl-couples with HA and results in the formation of a7o-type HA resin (HAR-A)

which shows good adsorbility towards heavy metal ions. The Cu2+ sorption capacity of ester / ether type humic acid resin (HAR-E) is increased by lengthening the reaction time of HA and PSCH2Cl. The structure of HAR is discussed on the basis of the IR spectra.The sorption capacity of HAR-A is 1.01mmol/g for Cd2+

Mn2+

Cu2+

Co2+and Zn2+

respectively.The calculated distribution coefficents of heavy metal ions on HAR-A can be arranged in the following order;Cu2+(8.7×103)>Cd2(3.8×102)>Zn2+(2.4×102)>Ni2+(1.8×102)>Mn2+(4.9×10).At pH 6.5

Cu2+

Cd2+

Ni2+

Mn2+ can be quantitatively asdorbed by HAR-A and completely eluted with 1N HNO3.HAR-A can be regenerated and reused.Trace quantities of the above-mentioned heavy metal ions in four samples of the natural occurring water and one sample of the tap water were analyzed by using HAR-A.

Abstract

Macroporous HA resins (HAR) can be prepared in pearl form by grafting HA onto crosslinked PS through azo or through ester and / or ether linkages. At pH 13 and the HA / PSNH2 weight ratio 0.7—1.0

PSN2+Cl-couples with HA and results in the formation of a7o-type HA resin (HAR-A)

Mn2+

Cu2+

Co2+and Zn2+

Cu2+

Cd2+

Ni2+

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