Solvent dewaxing of lubricating oils
Patent
·
OSTI ID:5116126
This paper describes improvement in a process for producing a dewaxed lubricating oil from a wax-bearing mineral oil by the steps comprising; mixing the oil with a dewaxing solvent thereby forming an oil-solvent mixture, chilling the oil-solvent mixture to a dewaxing temperature thereby crystallizing the wax and forming an oil-solvent crystalline wax mixture, separating the oil-solvent-crystalline wax mixture to form a dewaxed oil-solvent mixture and crystalline wax, steam stripping the dewaxed oil-solvent mixture at a temperature of 300{degrees}F to 600{degrees}F and pressure of 1 atm to 3 atm, to yield a solvent free dewaxed oil.
- Assignee:
- Texaco Inc., White Plaines, NY (USA)
- Patent Number(s):
- US 5006222; A
- Application Number:
- PPN: US 7-526745
- OSTI ID:
- 5116126
- Country of Publication:
- United States
- Language:
- English
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