Purification of aqueous reaction or washing medium containing ce

Details Purification of aqueous reaction or washing medium containing ce Purification of aqueous reaction or washing medium containing ce

1994-06-13

1996-01-09

Fortuna, Ana M.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210653, 210654, 210650, 210781, 536127, 536128, B01D 6100

Patent

active

054826349

ABSTRACT:
In a process for purifying an aqueous liquid reaction and/or washing medium containing i) hot water-insoluble cellulose ethers and ii) hot water-soluble cellulose ethers and/or macromolecular cellulose ether by-products, in a purification step a) the aqueous medium has a temperature above the gel point of the hot water-insoluble cellulose ether and gelled cellulose ether is separated from the aqueous medium by means of a solid-bowl centrifuge or a plate separator and in a purification step b) the remaining aqueous liquor is treated by ultrafiltration at a concentration ratio of at least 40.

REFERENCES:
patent: 2791584 (1957-05-01), Anderson
patent: 2861038 (1958-11-01), Steinmann et al
patent: 4398024 (1983-08-01), Bernert et al.
patent: 4672113 (1987-06-01), Wallisch et al.
patent: 5218107 (1993-06-01), Schulz
patent: 5244584 (1993-09-01), Schlieperskoetter
patent: 5360902 (1994-11-01), Brauer et al.

Affiliated with

Also associated with

Rating

Purification of aqueous reaction or washing medium containing ce does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purification of aqueous reaction or washing medium containing ce, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purification of aqueous reaction or washing medium containing ce will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1300516