Oil dewaxing method
US5547562A · kind A · utility
1Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1995 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | May 25, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G73/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention decloses a method for dewaxing a hydrocarbon oil which comprises adding an oil-soluble poly C.sub.18 -C.sub.22 alkylmethacrylate having a molecular weight of from about 10,000 to about 2,000,000 daltons to a hydrocarbon oil containing wax; cooling the oil to allow wax crystals to form, separating the wax crystals from the oil and recovering a dewaxed oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.