SUPPORTED LIQUID MEMBRANE SEPARATORS FOR THE ELECTROWINNING OF METALS

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$212,812.00
Award Year:
1985
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
696
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Castle Technology Corp.
Po Box 5, Lexington, MA, 02173
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. J. Paul Pemsler
Principal Investigator
(617) 933-5634
Business Contact:
() -
Research Institution:
n/a
Abstract
ELECTROWINNING IS A PRIME METHOD FOR THE RECOVERY OF METALS FROM HYDROMETALLURGICAL OPERATIONS. IN MANY CASES THE ABILITY OF ELECTROWINNING IS LIMITED BY THE LACK OF HIGHLY SPECIFIC, LOW RESISTANCE SEPARATORS TO ISOLATE THE ANODIC AND CATHODIC PROCESSES. WE PROPOSE TO APPLY THE SUPPORTED LIQUID MEMBRANE (SLM) SEPARATOR CONCEPT, DEVELOPED BY CASTLE TECHNOLOGY CORPORATION FOR USE IN BATTERIES, TO THE ELECTROWINNING OF METALS. WE WILL EXPLORE THE FEASIBILITY IN CONNECTION WITH TWO OPERATIONS: (1) CUPROUS CHLORIDE ELECTROWINNING AND (2) TRANSFER WITHIN A CELL FROM CHLORIDE TO SULFATE ELECTROWINNING. SHAKE OUT TESTS WILL BEUSED TO DETERMINE ION LOADING CAPACITY, STABILITY TESTS WILLINSURE LACK OF DETERIORATION OF TRANSPORT AGENTS, ION TRANSFER RATES WILL DETERMINE SPECIFICITY OF TRANSPORT AND RESISTANCE MEASUREMENTS WILL MEASURE VOLTAGE DROP ACROSS THESEPARATOR AS A FUNCTION OF CURRENT DENSITY. DATA WILL BE USED TO ASSESS THE ABILITY OF THE SLM'S TO IMPROVE ELECTROWINNING TECHNOLOGY AND TO PREPARE A PHASE II PROPOSALFOR ELECTROLYTIC CELL STUDIES.

* information listed above is at the time of submission.

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