Process for making basestocks for automatic transmission fluids

Details Process for making basestocks for automatic transmission fluids Process for making basestocks for automatic transmission fluids

1992-11-30

1994-04-05

Breneman, R. Bruce

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 16, 208 18, C10G 104, C10G 2100

Patent

active

053002130

ABSTRACT:
An automatic transmission fluid basestock of mineral oil origin is produced from a neutral distillate fraction, preferably a medium neutral distillate, by severe furfural extraction to a dewaxed oil equivalent VI of about 95, severe hydrocracking, at temperatures ranging from at least about 700.degree. F. and pressures of at least about 1,500 psig, to achieve a minimum product VI of 120. The hydrocracked product is vacuum distilled to recover a lubricant oil product boiling above about 650.degree. F. which has a VI of at least 120 and a viscosity at 100.degree. F. of at least 100 SUS. The viscosity of the 120 VI product can be increased by increasing the distillation cut point without impacting the VI. The lubricant oil, having a wax content below 30 wt. %.

REFERENCES:
patent: 3839189 (1974-10-01), Mills et al.
patent: 3880747 (1975-04-01), Mills et al.
patent: 4622129 (1986-11-01), Bayle et al.
patent: 4919788 (1990-04-01), Chen et al.

Affiliated with

Also associated with

Rating

Process for making basestocks for automatic transmission fluids 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 for making basestocks for automatic transmission fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making basestocks for automatic transmission fluids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-509091