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1. (WO1992009546) ADSORPTIVE SEPARATION OF ALPHA-OLEFINS AND INTERNAL OLEFINS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009546 International Application No.: PCT/US1991/008179
Publication Date: 11.06.1992 International Filing Date: 04.11.1991
IPC:
C07C 7/13 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
12
by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
13
by molecular-sieve technique
Applicants:
EXXON CHEMICAL PATENTS INC. [US/US]; 1900 East Linden Avenue Linden, NJ 07036, US
Inventors:
OU, John, Di-Yi; US
Agent:
RUSSELL, Linda, K. ; Exxon Chemical Company 5200 Bayway Drive Baytown, TX 77520-5200, US
Priority Data:
617,11821.11.1990US
Title (EN) ADSORPTIVE SEPARATION OF ALPHA-OLEFINS AND INTERNAL OLEFINS
(FR) SEPARATION PAR ADSORPTION D'OLEFINES ALPHA ET D'OLEFINES INTERNES
Abstract:
(EN) A process using zeolites, or molecular sieves, for separating an alpha-olefin having five or more carbons and the corresponding internal olefin or olefins. A mixture containing the alpha-olefin and one or more of the corresponding internal olefins is contacted with a zeolite which had previously undergone cation exchange. The selectivity of the zeolite, or molecular sieve, changes and eventually reverses as the carbon number increases. The selectivity is also related to the identity of the cation introduced during the cation exchange.
(FR) Procédé utilisant des zéolites ou des tamis moléculaires afin de séparer une oléfine alpha comportant au moins cinq atomes de carbone ainsi que l'oléfine ou les oléfines internes correspondantes. Un mélange contenant l'oléfine alpha ainsi qu'une ou plusieurs des oléfines internes correspondantes est mis au contact d'une zéolite ayant préalablement subi un échange cationique. La sélectivité de la zéolite ou du tamis moléculaire change et elle peut s'inverser à mesure que le nombre d'atomes de carbone augmente. La sélectivité est également liée à l'identité du cation introduit pendant l'échange cationique.
Designated States: AU, CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1991090515