发明名称 |
Catalyst for preparing chlorine from hydrogen chloride |
摘要 |
<p>There is disclosed a method for preparing an improved catalyst for use in the preparation of chlorine by the oxidization of hydrogen chloride with an oxygen-containing gas. The catalyst mainly comprises chromium oxide and can be used for a long period of time particularly under low oxygen content conditions, and the activity of the catalyst does not easily deteriorate, and in other words, the catalyst has a long life. Furthermore, there are here disclosed the catalyst obtained by this preparation method, and a method for preparing chlorine from hydrogen chloride by the use of the catalyst. Concretely, the method for preparing the improved catalyst comprises adding copper, an alkali metal and a rare earth metal, or adding chromium, copper, an alkali metal and a rare earth metal to a catalyst containing chromium oxide as a main component, and then calcining the catalyst at a temperature of 800 DEG C or less.</p> |
申请公布号 |
EP0711599(A1) |
申请公布日期 |
1996.05.15 |
申请号 |
EP19950307939 |
申请日期 |
1995.11.07 |
申请人 |
MITSUI TOATSU CHEMICALS, INCORPORATED |
发明人 |
MIYATA, KATSUHARU;MORISAKI, JYOJI;HIRAYAMA, TERUO;KAMACHI, HIRONORI;YAMADA, KUNIHIRO |
分类号 |
B01J23/885;C01B7/04;(IPC1-7):B01J23/86;B01J23/94;B01J38/00 |
主分类号 |
B01J23/885 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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