发明名称 |
Process for producing catalyst |
摘要 |
The present invention relates to the effective utilization of a used catalyst containing at least molybdenum, an A element (at least one element selected from the group consisting of phosphorus and arsenic) and an X element (at least one element selected from the group consisting of potassium, rubidium and cesium), and provides a process for producing a catalyst, which comprises dispersing said used catalyst in water, adding thereto an alkali metal compound and/or ammonia solution, adjusting the resulting mixture to pH 6.5 or less to generate a precipitate containing at least molybdenum and the A element, and using the precipitate as a material for catalyst-constituting elements.
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申请公布号 |
US6777369(B1) |
申请公布日期 |
2004.08.17 |
申请号 |
US20010926553 |
申请日期 |
2001.11.19 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
KURODA TORU;KAWATO SEIICHI;NITTA MASANORI;TAKEZAWA HIDEYASU |
分类号 |
B01J38/68;B01J23/88;B01J23/89;B01J27/057;B01J27/19;B01J27/199;B01J27/28;B01J37/03;B01J38/64;C07B61/00;C07C51/235;C07C51/25;C07C57/055;(IPC1-7):B01J27/19;B01J20/34;B01J27/14;B32B3/26;B01D53/22 |
主分类号 |
B01J38/68 |
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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