公开(公告)号：US3944613A

公开(公告)日：1976-03-16

申请号：US503700

申请日：1974-09-06

申请人： Isao Naramoto ,  Tatsuo Kyuma ,  Giichi Akazome

发明人： Isao Naramoto ,  Tatsuo Kyuma ,  Giichi Akazome

IPC分类号： C07B61/00 ,  B01J21/00 ,  B01J21/12 ,  B01J23/12 ,  B01J29/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/22 ,  C07C209/64 ,  C07C211/55 ,  C07C87/54

CPC分类号： C07C209/64 ,  B01J21/12 ,  B01J23/12

摘要： In repairing diphenylamine by reacting aniline in a liquid phase in the presence of a catalyst at a temperature of about 320.degree. to about 370.degree.C, a process which is characterized in that said catalyst is an amorphous synthetic silica-alumina catalyst containing 5 to 50% by weight of alumina.

摘要翻译： 在催化剂存在下，在约320℃至约370℃的温度下，使苯胺在液相中反应来修复二苯胺，其特征在于所述催化剂是一种无定形合成二氧化硅 - 氧化铝催化剂，其含有5至50个 重量％的氧化铝。

公开(公告)号：US4914239A

公开(公告)日：1990-04-03

申请号：US178722

申请日：1988-04-06

申请人： Tatsuo Kiyuma ,  Isao Naramoto

发明人： Tatsuo Kiyuma ,  Isao Naramoto

IPC分类号： B01J23/74 ,  C07B61/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/72 ,  C07C211/35

CPC分类号： C07C209/72 ,  C07C2101/14 ,  Y02P20/582

摘要： Disclosed is a method for continuous production of a cyclohexylamine compound by liquid phase hydrogenation of an aniline compound selected from aniline, nuclearly lower alkyl-substituted aniline, N-(lower alkyl)aniline and N,N-di(lower alkyl)aniline with hydrogen gas in the presence of a nickel catalyst, which comprises continuously feeding an aniline compound, continuously hydrogenating the aniline compound in the absence of a solvent and in the presence of an ammonia compound at a reaction pressure of about 2 to 10 kg/cm.sup.2 and at about 210.degree. to 240.degree. C., continuously withdrawing a product gas containing product cyclohexylamine compound, unreacted aniline compound, byproducts, hydrogen and ammonia compound from the reaction system, separating the hydrogen and ammonia compound from the product gas, separating the unreacted aniline compound and byproducts from the cyclohexylamine compound and recycling the unreacted aniline compound and byproducts to the reaction system continuously together with starting material feed aniline compound.

摘要翻译： 公开了通过液相氢化选自苯胺，核低级烷基取代苯胺，N-（低级烷基）苯胺和N，N-二（低级烷基）苯胺与氢的苯胺化合物连续制备环己胺化合物的方法。 在镍催化剂存在下的气体，其包括连续供给苯胺化合物，在不存在溶剂的情况下，在氨化合物存在下，在约2-10kg / cm 2的反应压力下，在 约210〜240℃，从反应体系中连续取出含有产物环己胺化合物，未反应苯胺化合物，副产物，氢和氨化合物的产物气体，从产物气体中分离出氢和氨化合物，分离未反应的苯胺化合物 和环己胺化合物的副产物，并将未反应的苯胺化合物和副产物连续地再循环到反应体系中 与原料进料苯胺化合物。