Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1985-10-24
1989-04-18
Cintins, Ivars
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210641, 75101BE, B01D 1103, B01D 1301
Patent
active
048224910
ABSTRACT:
A continuous high flow rate process for the transport of metal ions from a first aqueous liquid to a nonaqueous, water-immiscible liquid and therefrom to a second aqueous liquid. The nonaqueous liquid contains one or more complexing agents and is kept separated from the metal-ion-transferring aqueous liquid by one or more microporous hydrophobic membranes. A portion of the nonaqueous liquid is found in the pores of these membranes. The bulk of the nonaqueous liquid, however, is circulated through two or more transport zones. The transport of the metal ions to the second aqueous liquid occurs by mechanically mixing the nonaqueous liquid with the second aqueous liquid to form a mixture having an aqueous phase. The aqueous phase is separated from the mixture by means of an isolation process using membranes. The present process is well suited for processes involving the coupled co-transport and counter-transport of metal ions and can be used advantageously in ore dressing and wastewater treatment. Costly separation and purification processes are avoided.
REFERENCES:
patent: 3244763 (1966-04-01), Cahn
patent: 3939203 (1976-02-01), Mattison et al.
patent: 3956112 (1976-05-01), Lee et al.
patent: 3957504 (1976-05-01), Ho et al.
patent: 4051230 (1977-09-01), Miyauchi
patent: 4125461 (1978-11-01), Li
patent: 4247498 (1981-01-01), Castro
patent: 4519909 (1985-05-01), Castro
patent: 4551252 (1985-11-01), Boyadjiev
"Solvent Extraction Stars in Making Ultrapure Copper", H. J. McGarr, Chemical Engineering 1970, p. 82ff.
"The Influence of Macrocyclic, Ligand Structure on Carrier-Facilitated Cation Transport Rates and Selectivities Through Liquid Membranes", Journal of Membrane Science 9 (1981), pp. 83ff, J. D. Lamb et al.
"Coupled Transport Membranes" R. W. Baker et al., Journal of Mambrane Science 2 (1977), pp. 213ff.
K. J. Murray et al., "How to Select Organic Carriers for Optimum Copper Recoveries" E/MJ, Jul. (1973, pp. 74-77).
Dr. Otto-Albrecht Neumuller, Rompps Chemie-Lexikon (1983).
Journal of Membrane Sci., 21 (1984) pp. 5-19.
Akzo NV
Cintins Ivars
LandOfFree
Process for transporting metal ions by means of microporous memb 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 transporting metal ions by means of microporous memb, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for transporting metal ions by means of microporous memb will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2395532