C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 15/46 (2006.01) B01D 3/14 (2006.01) B01D 3/32 (2006.01) C07C 7/04 (2006.01)
Patent
CA 2232954
Process technology is described making possible substantial improvements in the separation and recovery of highly pure vinyl aromatic monomers, notably styrene. A number of design, construction and operational features are made available for selection and use both for new plant facilities and for upgrading existing plant facilities. One major aspect of the invention is reduction in retention or residence times in the distillation towers (14).
L'invention concerne une technique opératoire permettant d'améliorer considérablement la séparation et la récupération de monomères aromatiques vinyliques extrêmement purs, notamment de styrène. Un certain nombre de modes de conception et de fonctionnement sont présentés pour permettre la sélection et l'utilisation de nouvelles installations industrielles et la modification d'installations existantes. La réduction des temps de séjour dans les tours de distillation (14) constitue l'un des principaux aspects de l'invention.
Macrae & Co.
Yield Improvement Engineering Inc.
LandOfFree
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