Liquid vacuum pump seal to reduce contamination in bisphenol-A

Details Liquid vacuum pump seal to reduce contamination in bisphenol-A Liquid vacuum pump seal to reduce contamination in bisphenol-A

1998-09-16

2000-10-10

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568724, C07L 3916

Patent

active

061303593

ABSTRACT:
An improved process for producing Bisphenol-A which is essentially free of sodium impurity using rotary vacuum filter pumps which utilize a liquid ring seal to effect drawing a vacuum on a Bisphenol-A/phenol slurry, the improvement is in using phenol as the liquid ring seal medium.

REFERENCES:
patent: 4461915 (1984-07-01), Mendiratta et al.
patent: 4876391 (1989-10-01), Kissinger
patent: 5243093 (1993-09-01), Kissinger et al.
patent: 5315042 (1994-05-01), Cipullo et al.
patent: 5414151 (1995-05-01), Pressman et al.
patent: 5874644 (1999-02-01), Gammill
International Search Report for Application No. PCT/US 99/13885 (1999).

Affiliated with

Also associated with

Rating

Liquid vacuum pump seal to reduce contamination in bisphenol-A does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid vacuum pump seal to reduce contamination in bisphenol-A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid vacuum pump seal to reduce contamination in bisphenol-A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2258151