Removal of small amounts of a medium-boiling fraction from a liq

Distillation: processes – separatory – Plural distillations performed on same material – One a distillation under positive pressure or vacuum

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

203 77, 203 78, 203 80, 203 99, 203DIG9, 203DIG19, 568338, 568376, B01D 300

Patent

active

049941526

ABSTRACT:
Small amounts of a medium-boiling fraction are removed from a liquid mixture by distillation using a distillation column (main column) having a rectifying part and a stripping part, the liquid mixture containing relatively large amounts of lower-boiling and higher-boiling components, and the rectifying part being connected to the upper end of a second distillation column (side column) and the stripping part to the lower end of the said column, and the medium-boiling fraction being removed in vapor or liquid form from its middle section, by a process in which the concentration of the medium-boiling fraction in the liquid mixture is less than 2%, preferably less than 0.1%, and the amount of vapor passed into the lower end of the side column from the main column is 1-20%, preferably 3-10%, based on the amount of vapor in the main column at the relevant point.

REFERENCES:
patent: 4272326 (1981-06-01), Hertzog et al.
patent: 4306944 (1981-12-01), Murthy et al.
patent: 4448644 (1984-05-01), Foster et al.
patent: 4455198 (1984-06-01), Zudkevitch et al.
patent: 4606816 (1986-08-01), Harandi
patent: 4662995 (1987-05-01), Lipkin et al.
patent: 4744869 (1988-05-01), Saito et al.

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

Removal of small amounts of a medium-boiling fraction from a liq does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Removal of small amounts of a medium-boiling fraction from a liq, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of small amounts of a medium-boiling fraction from a liq will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1141424

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