公开(公告)号：US3781350A

公开(公告)日：1973-12-25

申请号：US3781350D

申请日：1972-07-06

Applicant: TEIJIN LTD

Inventor： FUJITA Y ,  TODA T ,  SHIMADA T

IPC: C07C51/347 ,  C07C59/01 ,  C07C59/04

CPC classification number: C07C59/01 ,  C07C51/347

Abstract: SATURATED ALIPHATIC DICARBOXLIC ACIDS OF 4 TO 12 CARBON ATOMS CAN BE CONVERTED TO THE CORRESPONDING WHYDROXY SATURATED ALIPHATIC MONOCARBOXYLIC ACIDS IN HIGH YIELDS AND WITH HIGH SELECTIVITY WHEN THEY ARE CONTACTED WITH HYDROGEN TOGETHER WITH SATURATED ALIPHATIC GLYCOLS OF THE SAME NUMBER OF CARBON ATOMS IN THE PRESENCE OF A CATALYST COMPRISING (1) METALLIC COBALT DERIVED BY REDUCING AT LEAST ONE COBALT COMPOUND (FIRST COMPONENT) SELECTED FROM THE GROUP CONSISTING OF COBALT OXIDES, COBALT CARBONATES AND COBALT HYDROXIDES AND (2) A METAL AND/ OR A METAL COMPOUND DERIVED BY REDUCING AT LEAST ONE COMPOUND (SECOND COMPONENT) SELECTED FROM THE GROUP CONSISTING OF PHOSPHATES, BORATES, MOLYBDATES AND TUNGSTATES OF IRON, ZINC OR COBALT, OXIDES AND HYDROXIDES OF IRON, RHENIUM, ZINC, PHOSPHORUS, BORON, MOLYBDENUM OR TUNGESTEN, AND CARBONATES OF IRON OR ZINC.