Mineral oils: processes and products – Fractionation – Liquid extraction with solvents
Patent
1985-03-05
1987-05-12
Caldarola, Glenn
Mineral oils: processes and products
Fractionation
Liquid extraction with solvents
208321, 208326, 585804, 585808, C07C 708, C10G 2120, C10G 2128
Patent
active
046647830
ABSTRACT:
A method is disclosed for the separation of aromates from hydrocarbon mixtures employed as entry products, by means of extractive distillation, employing as selective solvent N-substituted morpholine, the substitutions of which display no more than 7 C atoms. The raffinate produced as top product of the extractive distillation is subjected to a distillation, whereby the produced sump product with a solvent content between 20-75% by weight and a temperature between 20.degree.-70.degree. C., is led into a separation container and there separated into a heavy and a light phase. The heavy phase is then recycled into the extractive distillation column, whereas the light phase is recycled into the raffinate distillation column.
REFERENCES:
patent: 2902444 (1959-09-01), Shmidl
patent: 3107501 (1965-01-01), Woodle
patent: 3788980 (1974-01-01), Kubek et al.
patent: 3816302 (1974-06-01), Paret
patent: 3819917 (1974-06-01), Sweeney, Jr. et al.
patent: 4081355 (1978-03-01), Preusser et al.
patent: 4125458 (1978-11-01), Bushnell et al.
patent: 4278505 (1981-07-01), Danulat et al.
Preusser Gerhard
Schulze Martin
Caldarola Glenn
Krupp-Koppers GmbH
Striker Michael J.
LandOfFree
Method for the separation of aromates from hydrocarbon mixtures does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the separation of aromates from hydrocarbon mixtures , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the separation of aromates from hydrocarbon mixtures will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1800531