Technology for production of high-purity guanidine carbonate

被引：0
|
作者：
Lodyga, Andrzej [1 ]
Turczyn, August [1 ]
Hubicki, Zbigniew [2 ]
机构：
[1] Inst Nawozow Sztucznych, PL-24110 Pulawy, Poland
[2] Uniwersytet Marii Curie Sklodowskiej, Lublin, Poland
来源：
PRZEMYSL CHEMICZNY | 2009年 / 88卷 / 12期
关键词：
D O I：
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Guanidyne carbonate was sepd. from mother liquor of melamine prodn. and purified by ion exchange method to remove Fe ions both in lab. under 2-stage static and dynamic conditions and in industrial scale reactor. Com. ion exchange resins were successfully used. The products contained less than 10 ppm Fe. The resins were efficiently regenerated with soins. of EDTA (concn. 25%) and NH(4)NO(3) (concn. 2 mole/L) used as complexants.
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页码：1343 / 1346
页数：4
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