Title:
Countercurrent flow centrifugal exchangers
United States Patent 3221985
US Patent References:
Centrifugal countercurrent exchange device
- - 2652975
Centrifugal countercurrent contact apparatus
- - 2670132
Centrifugal countercurrent exchange device
- - 2758784
Centrifugal phase contactor
- - 2819014
Acid-clay treatment of petroleum fractions using centrifugal force
- - 2852438
Centrifugal countercurrent exchange device
- - 2652975
Centrifugal countercurrent contact apparatus
- - 2670132
Centrifugal countercurrent exchange device
- - 2758784
Centrifugal phase contactor
- - 2819014
Acid-clay treatment of petroleum fractions using centrifugal force
- - 2852438
Inventors:
Burdett, Joseph W.
Publication Date:
12/07/1965
View Patent Images:
Export Citation:
Assignee:
SHELL OIL CO
Primary Class:
Other Classes:
494/43, 494/901
International Classes:
B01D11/04; B04B5/06; B04B5/00
US Patent References:
| 2857326 | Solvent extraction of lubricating oils with phenol | |||
| 2963429 | Separation of hydrocarbon mixtures to recover aromatic hydrocarbons utilizing lactone-water solvents | |||
| 3027389 | Refining of fatty oils | |||
| 3027390 | Apparatus and method for centrifugal purification of fatty oils | |||
| 3050238 | Liquid feed arrangement for centrifugal devices |