公开(公告)号：JPH0347154A

公开(公告)日：1991-02-28

申请号：JP18018789

申请日：1989-07-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： WATANABE YASUKICHI ,  KUBOYAMA HISAHARU ,  TOKUMOTO SHUICHI ,  SUGIYAMA EIICHI

IPC: C07C209/16 ,  B01J27/18 ,  C07B61/00 ,  C07C211/10 ,  C07C211/14

Abstract: PURPOSE:To improve selectivity of the objective compound and to reduce discoloration of reaction product solution in producing the title compound by reacting ammonia with ethylenediamine and monoethanolamine by making hydrogen exist in the reaction system. CONSTITUTION:(A) Ammonia is reacted with (B) ethylenediamine and (C) monoethanolamine in the presence of hydrogen using phosphoric acid, a condensate thereof, dihydrogen phosphate, a corresponding pyrophosphate or hydrogen phosphate as a catalyst in the molar ratio of the component A/C=1 or above, preferably 6-50 and the molar ratio of the component B/C=0.01-10, preferably 0.05-5 at 150-400 deg.C, preferably 200-350 deg.C to give a noncyclic ethyleneamine having a wide industrial use, especially ethylenediamines such as ethylenediamine, diethylenetriamine or triethylenetetramine and to suppress discoloration in the production.

公开(公告)号：JPH0347153A

公开(公告)日：1991-02-28

申请号：JP18018689

申请日：1989-07-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： WATANABE YASUKICHI ,  ENDO YUMIKO ,  NAGANUMA YOSHITARO ,  KOMIYAMA TADASHI

IPC: C07C209/16 ,  C07C211/10 ,  C07C211/14

Abstract: PURPOSE:To improve selectivity of the objective compound and to reduce discoloration of reaction product solution in producing a noncyclic ethyleneamine by reacting ammonia with monoethanolamine by making hydrogen exist in the reaction system. CONSTITUTION:Ammonia is reacted with monoethanolamine in the presence of hydrogen using phosphoric acid, a condensate thereof, dihydrogen phosphate, a corresponding pyrophosphate or hydrogen phosphate as a catalyst in the molar ratio of ammonia: ethanol=1.6 or above at 200-400 deg.C to give a noncyclic ethyleneamine having a wide industrial use, especially ethylenediamines such as ethylenediamine, diethylenetriamine or triethylenetetramine and to suppress discoloration in the production.