Use of mixed polyoxypropylene glycols in the extractive distilla

Distillation: processes – separatory – Adding material to distilland except water or steam per se – Organic compound

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

203 78, 203 80, 203DIG9, 549541, B01D 340, C07D30132

Patent

active

054531608

ABSTRACT:
An extractive distillation agent comprising a mixture of polyoxypropylene glycols is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate anhydrous propylene oxide fraction contaminated with reduced quantities of methanol and a heavier bottoms distillation fraction containing the polyoxypropylene glycols, water and acetone and some of the methanol introduced into the distillation column.

REFERENCES:
patent: 3578568 (1971-05-01), Washall
patent: 4297287 (1981-10-01), Costantini et al.
patent: 4402794 (1983-09-01), Nemet-Maurodin et al.
patent: 5000825 (1991-03-01), Shih et al.
patent: 5129996 (1992-07-01), Shih
patent: 5139622 (1992-08-01), Marquis et al.
patent: 5145563 (1992-09-01), Culbreth, III et al.
patent: 5154803 (1992-10-01), Marquis et al.
patent: 5154804 (1992-10-01), Marquis et al.
patent: 5160587 (1992-11-01), Marquis et al.
patent: 5262017 (1993-11-01), Meyer et al.
patent: 5340446 (1994-08-01), Nelson et al.
CA 76: 34601.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Use of mixed polyoxypropylene glycols in the extractive distilla does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of mixed polyoxypropylene glycols in the extractive distilla, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of mixed polyoxypropylene glycols in the extractive distilla will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1550402

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.