Mineral oils: processes and products – Refining – Water removal
Reexamination Certificate
2006-07-18
2006-07-18
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Refining
Water removal
C208S188000, C208S289000, C585S833000, C585S846000, C585S858000, C585S859000
Reexamination Certificate
active
07077950
ABSTRACT:
Process for the continuous drying of a hydrocarbon stream at a temperature being effective in drying the stream with an ionic liquid drying agent comprising a salt of sulphuric acid being in liquid or melted form at the drying temperature.
REFERENCES:
patent: 3793187 (1974-02-01), Marx et al.
patent: 4484933 (1984-11-01), Cohen
Dickstein , Shapiro, Morin & Oshinsky, LLP
Haldor Topsoe A/S
Nguyen Tam M.
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