| 发明名称 |
Niacin prodn. by alkylpyridine oxidn. - over a solid catalyst of vanadium pentoxide promoted with titanium dioxide |
| 摘要 |
<p>Prodn. of niacin (I) from alkylpyridines (II) having beta-methyl or -ethyl substits. comprises vapour-phase oxidation with air and steam over a solid V2O5 catalyst contg. TiO2 as a promoter which has been sintered at 1250 degrees C. Pref. the V : Ti ratio is 100/25 in atom %, and the catalyst may additionally contain alkali oxides as additional promoters.</p> |
| 申请公布号 |
DE2647712(A1) |
申请公布日期 |
1977.05.18 |
| 申请号 |
DE19762647712 |
申请日期 |
1976.10.21 |
| 申请人 |
AB BOFORS |
发明人 |
TORE,PROF. LUNDIN,STEN;GUNNAR,DIPL.-ING. JAERAAS,SVEN |
| 分类号 |
C07D213/48;C07D213/80;(IPC1-7):C07D213/80 |
主分类号 |
C07D213/48 |
| 代理机构 |
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