ION-EXCHANGE OF FE-3+ IN ZSM-5

被引:18
作者
KALIAGUINE, S
LEMAY, G
ADNOT, A
BURELLE, S
AUDET, R
JEAN, G
SAWICKI, JA
机构
[1] CANADA CTR MINERAL & ENERGY TECHNOL,ENERGY RES LABS,OTTAWA,ONTARIO,CANADA
[2] CHALK RIVER NUCL LABS,CHALK RIVER,ONTARIO,CANADA
来源
ZEOLITES | 1990年 / 10卷 / 06期
关键词
Ion-exchange Fe[!sup]3+[!/sup] in Na-ZSM-5; reduction Fe[!sup]3+[!/sup] to Fe[!sup]2+[!/sup; t.p.r. of Fe[!sup]2+[!/sup] HZSM-5;
D O I
10.1016/S0144-2449(05)80312-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The ion exchange of Fe3+ with sodium in NaZSM-5 was performed with a maximum exchange level of 90% at 25°C. Subsequent exchange of the sodium for NH+ 4 ions was made with no loss of iron, but the thermal decomposition necessary for conversion of these ammonium ions to protons leads to reduction of Fe3+ to Fe2+. These phenomena were monitored by e.s.c.a., Mössbauer, i.r. of adsorbed pyridine, and temperature-programmed reduction. © 1990 Butterworth-Heinemann.
引用
收藏
页码:559 / 564
页数:6
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