Method for desulfation of battery mud
Patent
·
OSTI ID:5980075
In connection with the recycling of lead-acid batteries, battery muds are desulfated by adding an aqueous solution of a treating agent comprising soluble alkali metal salts or alkali metal hydroxides to crushed battery components. The treating agent reacts with sulfuric acid and lead sulfate to form an aqueous solution of alkali metal sulfates and precipitated lead compounds. Following separation of the reacted battery mud and other crushed battery components, separation of the soluble alkali metal sulfates and solids such as PbO, PbO/sub 2/, and precipitated lead compounds is effected.
- Assignee:
- N L Industries Inc
- Patent Number(s):
- US 4269810
- OSTI ID:
- 5980075
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250900 -- Energy Storage-- Batteries
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
COMMINUTION
CRUSHING
DESULFURIZATION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LEAD COMPOUNDS
LEAD SULFATES
LEAD-ACID BATTERIES
OXYGEN COMPOUNDS
RECYCLING
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
250900 -- Energy Storage-- Batteries
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
COMMINUTION
CRUSHING
DESULFURIZATION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LEAD COMPOUNDS
LEAD SULFATES
LEAD-ACID BATTERIES
OXYGEN COMPOUNDS
RECYCLING
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID