Modified deoiling - dewaxing process

Details Modified deoiling - dewaxing process Modified deoiling - dewaxing process

C - Chemistry, Metallurgy

10

G

196/251

C10G 73/04 (2006.01) C10G 73/02 (2006.01)

Patent

CA 1262881

ABSTRACT OF THE DISCLOSURE Refined waxes and dewaxed lubricating oil base- stocks are simultaneously produced in a reversed deoiling-dewaxing process employing conventional dewaxing solvents and existing process equipment. Improved yields, lower solvent usage, and higher throughputs are achieved using dewaxing aids in the final stage. Waxy hydrocarbon oils are solvent dewaxed to a temperature which produces a low oil content refined high melting point hard wax product which is recovered, e.g., by filtration. The hard wax product can be deoiled. The filtrate from the initial dewaxing operation is then injected with dewaxing aid and further chilled in secondary chiller means such as scraped surface chillers to a lower temperature to produce more deeply dewaxed oil and a low melting point soft wax product which are separated, e.g., by filtration. The low melting point wax is desolvated and the dewaxing aid may be recovered for example by passing the wax through a membrane or by distillation. Any recovered dewaxing aid may be recycled to the process.

470954

Affiliated with

Also associated with

Rating

Modified deoiling - dewaxing process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modified deoiling - dewaxing process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified deoiling - dewaxing process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1286908