Process for separating p-xylene from a hydrocarbon mixture

Details Process for separating p-xylene from a hydrocarbon mixture Process for separating p-xylene from a hydrocarbon mixture

1981-03-16

1982-05-25

Waltz, Thomas A.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By cooling of liquid to obtain solid, e.g., crystallization,...

585816, 585817, C07C 714

Patent

active

043318266

ABSTRACT:
A process and an apparatus therefor are described for separating p-xylene from a p-xylene containing hydrocarbon liquid feed material by crystallization, said process comprising (1) mixing a p-xylene containing hydrocarbon feed material with an inert liquid refrigerant, (2) feeding the mixed liquid into a lower part of a bubble tower type crystallization tower as an ascending current, (3) evaporating the refrigerant by the lowering of the liquid static pressure caused by ascent of the mixed liquid and by the transfer of heat into the refrigerant due to solidification of p-xylene and by the lowering of the temperature of the mixed liquid, cooling the ascending liquid to form a slurry of p-xylene crystals in the hydrocarbon liquid, (4) separating the inert refrigerant as a vapor from the liquid surface of the upper part of the crystallization zone, and (5) separating p-xylene crystals from the slurry discharged from the upper part of the crystallization zone.

Affiliated with

Also associated with

Rating

Process for separating p-xylene from a hydrocarbon mixture 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 separating p-xylene from a hydrocarbon mixture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating p-xylene from a hydrocarbon mixture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2077877