Recovery of Li from alloys of Al-Li and Li-Al using engineered scavenger compounds

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:7038236

Riley, W D; Jong, B W; Collins, W K; Gerdemann, S J

The invention relates to a process for obtaining Li metal selectively recovered from Li-Al or Al-Li alloy scrap by: (1) removing Li from aluminum-lithium alloys at temperatures between about 400 C-750 C in a molten salt bath of KC1-LiCl using lithium titanate (Li2O.3TiO2) as an engineered scavenger compound (ESC); and (2) electrodepositing of Li from the loaded ESC to a stainless steel electrode. By use of the second step, the ESC is prepared for reuse. A molten salt bath is required in the invention because of the inability of molten aluminum alloys to wet the ESC.

• Research Organization: Department of the Interior, Washington, DC (United States)
• Assignee: Department of the Interior, Washington, DC (United States)
• Patent Number(s): PAT-APPL-7-956-193
• OSTI ID: 7038236
• Resource Relation: Patent File Date: 5 Oct 1992
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
MATERIALS RECOVERY
SEPARATION PROCESSES
SCRAP
RECYCLING
ALLOYS
ALUMINIUM
ECONOMIC ANALYSIS
LITHIUM
LITHIUM ALLOYS
MOLTEN SALTS
PURIFICATION
SLAGS
TEMPERATURE DEPENDENCE
US EPA
ALKALI METALS
ECONOMICS
ELEMENTS
MANAGEMENT
METALS
NATIONAL ORGANIZATIONS
PROCESSING
SALTS
SOLID WASTES
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management