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1. KR1020000029879 - ISOMERIZATION OF VINYL GLYCOLS TO UNSATURATED DIOLS

Office
République de Corée
Numéro de la demande 1019997001047
Date de la demande 08.02.1999
Numéro de publication 1020000029879
Date de publication 25.05.2000
Type de publication A
CIB
C07C 29/56
CCHIMIE; MÉTALLURGIE
07CHIMIE ORGANIQUE
CCOMPOSÉS ACYCLIQUES OU CARBOCYCLIQUES
29Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons
56par isomérisation
CPC
B01J 29/166
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29Catalysts comprising molecular sieves
04having base-exchange properties, e.g. crystalline zeolites
06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
08of the faujasite type, e.g. type X or Y
16containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
166Y-type faujasite
C07C 29/56
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
56by isomerisation
Déposants THE DOW CHEMICAL COMPANY
그레이스 스티븐 에스.더 다우 케미칼 캄파니
Inventeurs ACOBS PIERRE A.
레만스토마스요트
MARTENS JOHAN
야콥피에르아
REMANS THOMAS J.
마텐스요한
STEIJNS MATHIAS H. G.
판오에펠렌도미니쿠스아게
VAN OEFFELEN DOMINICUS A. G.
슈타이옌스마티아스하게
Mandataires 이병호
Données relatives à la priorité 08689428 09.08.1996 US
Titre
(EN) ISOMERIZATION OF VINYL GLYCOLS TO UNSATURATED DIOLS
(KO) 비닐글리콜의불포화디올로의이성화방법
Abrégé
(EN)

PURPOSE: A method of isomerization of vinyl glycols to unsaturated diols is prepared.

CONSTITUTION: This invention relates to a process for the isomerization of a vinyl glycol to an unsaturated diol in the presence of a rhenium-based catalyst; and to a catalyst for said isomerization. More specifically, this invention relates to the isomerization of 3-butene-1,2-diol to 2-butene-1,4-diol; and to a process for the manufacture of 1,4-butanediol involving the step of isomerizing 3-butene-1,2-diol to 2-butene-1,4-diol in the presence of said catalyst. The catalyst is characterized in that it comprises a transition metal on a carrier wherein the carrier is a zeolite Y type substance containing silicon and aluminum in a mole ratio of from about 1.5: 1 to about 1000: 1, and the transition metal is rhenium or a rhenium compound and mixtures thereof present in an amount of from about 0.1 to about 50 weight percent based on total combined weight of the carrier and of the rhenium or rhenium compound and mixtures thereof.

COPYRIGHT 2000 KIPO


(KO) 본 발명은 레늄-기재된 촉매의 존재하에 비닐 글리콜을 불포화 디올로 이성화시키는 방법 및 이러한 이성화를 위한 촉매에 관한 것이다. 더욱 구체적으로, 본 발명은 3-부텐-1,2-디올의 2-부텐-1,4-디올로의 이성화; 상기 촉매의 존재하에 3-부텐-1,2-디올을 2-부텐-1,4-디올로 이성화시키는 단계를 포함하는 1,4-부탄디올의 제조 방법에 관한 것이다. 당해 촉매는, 담체가 규소 및 알루미늄을 1.5 대 1 내지 1000 대 1의 몰비로 함유하는 제올라이트 Y형 물질이고; 전이금속이 담체와 레늄, 레늄 화합물 또는 이의 혼합물의 총 배합 중량을 기준으로 하여 0.1 내지 50중량%의 양으로 존재하는 레늄, 레늄 화합물 또는 이의 혼합물인, 담체상의 전이금속을 포함함을 특징으로 한다.