Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-11-12
1977-04-19
Spear, Jr., Frank A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 81, 264196, B01D 3700
Patent
active
040186814
ABSTRACT:
Cellulosic solutions are filtered by a process enabling virtual complete recovery and recycling of the undissolved cellulosic components of the solutions. The process comprises filtering the solution through a bed of particulate material until the build-up of undissolved material impedes the further flow of solution through the bed, mixing the undissolved material and particulate bed with a solvent to partially dissolve the undissolved material, which is highly concentrated relative to its original concentration before filtration, adding a solubilizing reactant to said concentrated partial solution of undissolved material to complete the solution of the cellulosic residues, and separating and recycling the resulting solution.
REFERENCES:
patent: 1852466 (1932-04-01), McConnell
patent: 1952604 (1934-03-01), Parker
patent: 2956682 (1960-10-01), Stephan
patent: 3393262 (1968-07-01), Durso et al.
LaPolla Edmund M.
Murphy Charles F.
Sarkisian Arthur
Castel Benoit
Holt H. J.
International Telephone and Telegraph Corporation
Raden J. B.
Spear, Jr. Frank A.
LandOfFree
Filtration of cellulosic solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filtration of cellulosic solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filtration of cellulosic solutions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-101574