Process oil, process for production of deasphalted oil,...

Details Process oil, process for production of deasphalted oil,... Process oil, process for production of deasphalted oil,...

2011-07-05

2011-07-05

McAvoy, Ellen M (Department: 1771)

Mineral oils: processes and products

Products and compositions

Lubricating oils

C508S110000, C585S001000, C585S833000, C585S834000, C208S311000

Reexamination Certificate

active

07972496

ABSTRACT:
The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of:(a) a polycyclic aromatics (PCA) content of less than 3 mass %;(b) a viscosity (100° C.) of 40 to 70 mm2/s;(c) an aniline point of 85 to 100° C.;(d) a flash point of 250° C. or higher;(e) an aromatic hydrocarbon content of 40 to 55 mass %; and(f) a polar substance content of 10 to 15 mass %.The present invention is also related to a process oil and a manufacturing method of the process oil, the process oil obtained by mixing: an extract obtained by deasphalting and solvent-extracting a vacuum residual oil of a crude oil; and a lubricant base oil having a polycyclic aromatics (PCA) content of less than 3 mass %, and having properties of:(a) a polycyclic aromatics (PCA) content of less than 3 mass %;(i) a viscosity (100° C.) of 30 to 80 mm2/s;(j) an aniline point of 90° C. or lower;(k) a flash point of 240° C. or higher;(l) a benzo(a)pyrene content of 1 mass ppm or less;(m) a specified aromatic compound content of 10 mass ppm or less; and(n) a polar substance content of 10 to 30 mass %.

REFERENCES:
patent: 6410816 (2002-06-01), Takasaki et al.
patent: 6605695 (2003-08-01), Takasaki et al.
patent: 2002/0188054 (2002-12-01), Takasaki et al.
patent: 1564858 (2005-01-01), None
patent: 1 031 621 (2000-08-01), None
patent: 6-505524 (1994-06-01), None
patent: 11-080434 (1999-03-01), None
patent: 11-080751 (1999-03-01), None
patent: 11-302456 (1999-11-01), None
patent: 2000-63849 (2000-02-01), None
patent: 2000-80208 (2000-03-01), None
patent: 2000-309786 (2000-11-01), None
patent: 2002-3861 (2002-01-01), None
patent: 2003-213040 (2003-07-01), None
patent: 97-35462 (1997-10-01), None
patent: 03-031537 (2003-04-01), None
1) References AL—AU have been cited in the International Search Report.
2) References have been cited in the corresponding Search Report.
3) References are discussed in the specification.
4) Reference AV is additional prior art known to Applicant.

Affiliated with

Also associated with

Rating

Process oil, process for production of deasphalted oil,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process oil, process for production of deasphalted oil,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process oil, process for production of deasphalted oil,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2675837