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환원동에 의한 염화암모늄의 열 분해 반응

Thermal Decomposition of Ammonium Chloride with the Aid of Reduced Copper

HWAHAK KONGHAK, October 1980, 18(5), 401-410(10), NONE
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Abstract

환원동을 주 성분으로 하는 promoter로서 염화암모늄을 암모니아와 염화수소로 분리하는 다음과 같은 2단계 열 분해 반응에 대해서 연구하였다.
2NH4Cl⁢Cu → CuCl2⁢2NH3 ⁢H2 (1)
CuCl2⁢H2 → Cu⁢2HCl (2)
가장 효과적인 promoter는 NiCl2, CuCl2, Alumina NaCl 및 KCl의 혼합물을 500 ℃에서 수소로 처리하여 얻어진 것이었으며, 이들 promoter를 사용하였을 때 얻어진 최대 수율은 (1)의 반응에서는 420 ℃ 수소 기체의 유속 1 ml/min에서 NH3가 83 %, (2)의 반응에서는 530 ℃, 수소기체의 유속 5 ml/min에서 80 %였다.
The two-stage decomposition of ammonium chloride into ammonia and hydrogen chloride with the aid of reduced copper and other additives was investigated. The mechanism of the reaction is as follows :
2NH4Cl⁢Cu → CuCl2⁢2NH3 ⁢H2 (1)
CuCl2⁢H2 → Cu⁢2HCl (2)
The most effective promoter for this reaction turned out to be the one obtained from the mixture of NiCl2, CuCl2, alumina, NaCl and KCl and reduced under the hydrogen atmosphere at 500 ℃.
The maximum yields of ammonia for the stage (1) and hydrogen chlorides for the stage (2) are 83 % and 80 %, and the flow rates of hydrogen are 1 ml/min at 420 ℃ and 5 ml/min at 530 ℃ respectively.

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