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公开(公告)号:US06376677B1
公开(公告)日:2002-04-23
申请号:US09597244
申请日:2000-06-20
申请人: Roderick J. Chuck , Uwe Zacher
发明人: Roderick J. Chuck , Uwe Zacher
IPC分类号: C07D21330
CPC分类号: C07D213/803
摘要: Nicotinic acid is produced from aqueous solutions of ammonium nicotinate by spray-drying. The nicotinic acid can be freed from residual ammonium nicotinate by a thermal post-treatment in a fluidized bed or under reduced pressure. The process is suitable in particular for the work-up of the reaction mixture produced in the oxidation of 3-methylpyridine with atmospheric oxygen, with the ammonia and, if appropriate, the water, being able to be recycled. Nicotinic acid (“vitamin PP”) is an important additive to foodstuffs and feedstuffs.
摘要翻译: 烟酸通过喷雾干燥由烟酸铵的水溶液产生。 通过在流化床中或减压下的热后处理,烟酸可以从残留的烟酸铵中除去。 该方法特别适用于在3-甲基吡啶与大气氧气氧化反应生成的反应混合物中,与氨和适当的水一起被回收利用。 烟酸(“维生素PP”)是食品和饲料的重要添加剂。
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公开(公告)号:US6077957A
公开(公告)日:2000-06-20
申请号:US197477
申请日:1998-11-23
申请人: Roderick J. Chuck , Uwe Zacher
发明人: Roderick J. Chuck , Uwe Zacher
IPC分类号: C07D213/55 , A23L33/00 , C07D213/79 , C07D213/803 , C07D213/30
CPC分类号: C07D213/803
摘要: Nicotinic acid is produced from aqueous solutions of ammonium nicotinate by spray-drying. The nicotinic acid can be freed from residual ammonium nicotinate by a thermal post-treatment in a fluidized bed or under reduced pressure. The process is suitable in particular for the work-up of the reaction mixture produced in the oxidation of 3-methylpyridine with atmospheric oxygen, with the ammonia and, if appropriate, the water, being able to be recycled. Nicotinic acid ("vitamin PP") is an important additive to foodstuffs and feedstuffs.
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公开(公告)号:US5719045A
公开(公告)日:1998-02-17
申请号:US741806
申请日:1996-10-31
申请人: Josef Heveling , Erich Armbruster , Lukas Utiger , Markus Rohner , Hans-Rudolf Dettwiler , Roderick J. Chuck
发明人: Josef Heveling , Erich Armbruster , Lukas Utiger , Markus Rohner , Hans-Rudolf Dettwiler , Roderick J. Chuck
IPC分类号: C07D213/82 , B01J23/28 , C12P13/02 , C12P17/12 , C12R1/01
CPC分类号: C12P17/12
摘要: A process for preparing nicotinamide, wherein, in the first stage, 2-methyl-1,5-diaminopentane is catalytically converted into 3-picoline, then the 3-picoline is converted via an ammonoxidation into 3-cyanopyridine and, finally, the 3-cyanopyridine is converted microbiologically into the nicotinamide.
摘要翻译: 制备烟酰胺的方法,其中在第一阶段将2-甲基-1,5-二氨基戊烷催化转化为3-甲基吡啶,然后将3-甲基吡啶通过氨氧化转化为3-氰基吡啶,最后,将3 - 氰基吡啶被微生物转化成烟酰胺。
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4.
公开(公告)号:US5698701A
公开(公告)日:1997-12-16
申请号:US732343
申请日:1997-01-07
IPC分类号: B01J23/22 , B01J21/06 , B01J23/28 , C07D213/84
CPC分类号: C07D213/84 , B01J23/28
摘要: A new catalytic composition, comprising the oxides of vanadium, titanium, zirconium and molybdenum is disclosed. The new catalytic composition is applied in the oxidative ammonolysis of alkylpyridines.
摘要翻译: PCT No.PCT / EP95 / 01945 Sec。 371日期1997年1月7日 102(e)日期1997年1月7日PCT提交1995年5月22日PCT公布。 出版物WO95 / 32055 日期:1995年11月30日公开了包含钒,钛,锆和钼的氧化物的新型催化剂组合物。 新的催化组合物应用于烷基吡啶的氧化氨解。
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