发明名称 |
PROCESS FOR THE PURIFICATION OF NICOTINIC ACID AMIDE I |
摘要 |
Crude nicotinamide is purified by a recrystallization and in this way freed especially from nicotinic acid and salts of nicotinic acid. As solvent there is used a 2-methylpropanol-1 containing water. The recrystallization takes place at a pH between about 7 and 10. |
申请公布号 |
ZA8104988(B) |
申请公布日期 |
1982.07.28 |
申请号 |
ZA19810004988 |
申请日期 |
1981.07.21 |
申请人 |
DEGUSSA AG |
发明人 |
BESCHKE H;DAHM F;FRIEDRICH H;PRESCHER G |
分类号 |
C07D213/82;C07D213/81 |
主分类号 |
C07D213/82 |
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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