公开(公告)号：AT297883T

公开(公告)日：2005-07-15

申请号：AT00987470

申请日：2000-12-28

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  DR STAMMER ACHIM ,  HAAKE MATHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD

IPC: C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  C07C29/90 ,  C07C31/22

Abstract: A process for greatly improving the color index of polyhydric alcohols, especially trimethylolpropane, by hydrogenation comprises using, in the hydrogenation, an alcohol which has already been purified by distillation. The catalysts used are those conventionally employed in hydrogenations, preferably copper, nickel, palladium or ruthenium catalysts.

公开(公告)号：DE50010580D1

公开(公告)日：2005-07-21

申请号：DE50010580

申请日：2000-12-28

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  DR STAMMER ACHIM ,  HAAKE MATHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD

IPC: C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  C07C29/90 ,  C07C31/22

Abstract: A process for greatly improving the color index of polyhydric alcohols, especially trimethylolpropane, by hydrogenation comprises using, in the hydrogenation, an alcohol which has already been purified by distillation. The catalysts used are those conventionally employed in hydrogenations, preferably copper, nickel, palladium or ruthenium catalysts.

公开(公告)号：ES2241684T3

公开(公告)日：2005-11-01

申请号：ES00987470

申请日：2000-12-28

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  DR STAMMER ACHIM ,  HAAKE MATHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD

IPC: C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  C07C29/90 ,  C07C31/22

Abstract: Procedimiento para la mejora del índice de color de alcoholes polivalentes del grupo constituido por trimetiloletano, trimetilolpropano, trimetilolbutano, neopentilglicol y pentaeritrita, en especial trimetilolpropano, mediante hidrogenado catalítico, caracterizado porque el alcohol polivalente empleado en el hidrogenado se purificó mediante destilación tras su obtención.