Mineral oils: processes and products – Paraffin wax; treatment or recovery – Separation of paraffin from oil
Reexamination Certificate
2007-10-19
2011-10-04
Griffin, Walter (Department: 1774)
Mineral oils: processes and products
Paraffin wax; treatment or recovery
Separation of paraffin from oil
C208S027000, C208S030000, C208S031000, C208S033000, C208S035000, C196S014500, C377S011000, C250S222100, C356S335000, C356S336000, C356S337000, C356S338000, C356S339000, C356S340000, C356S341000, C356S342000, C356S343000
Reexamination Certificate
active
08029661
ABSTRACT:
The determination of wax crystal particle size and population is used to monitor the performance of wax crystallizers used in lubricant oil processing using solvent dewaxing. The wax crystal particle size is monitored using online measurements. The information obtained from on-line monitoring is then used to control crystallization in the dewaxing equipment in order to optimize performance of the dewaxing units.
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patent: 2006/0173230 (2006-08-01), Chang et al.
Beasley Brent E.
Palmer Thomas R.
Sinclair David S.
ExxonMobil Research and Engineering Company
Griffin Walter
McCaig Brian
Migliorini Robert A.
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