skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Recovery of aluminum and other metal values from fly ash

Abstract

The invention relates to a method for improving the acid leachability of aluminum and other metal values found in fly ash which comprises sintering the fly ash, prior to acid leaching, with a calcium sulfate-containing composition at a temperature at which the calcium sulfate is retained in said composition during sintering and for a time sufficient to quantitatively convert the aluminum in said fly ash into an acid-leachable form.

Inventors:
;
Publication Date:
OSTI Identifier:
6777670
Alternate Identifier(s):
OSTI ID: 6777670
Assignee:
Dept. of Energy TIC; ERA-06-003866; EDB-81-001534
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ALUMINIUM; MATERIALS RECOVERY; FLY ASH; RECYCLING; CALCIUM SULFATES; LEACHING; SINTERING; WASTE PRODUCT UTILIZATION; AEROSOL WASTES; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; DISSOLUTION; ELEMENTS; FABRICATION; MANAGEMENT; METALS; OXYGEN COMPOUNDS; PROCESSING; RECOVERY; SEPARATION PROCESSES; SULFATES; SULFUR COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES 320305* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management

Citation Formats

McDowell, W.J., and Seeley, F.G. Recovery of aluminum and other metal values from fly ash. United States: N. p., 1979. Web.
McDowell, W.J., & Seeley, F.G. Recovery of aluminum and other metal values from fly ash. United States.
McDowell, W.J., and Seeley, F.G. Thu . "Recovery of aluminum and other metal values from fly ash". United States.
@article{osti_6777670,
title = {Recovery of aluminum and other metal values from fly ash},
author = {McDowell, W.J. and Seeley, F.G.},
abstractNote = {The invention relates to a method for improving the acid leachability of aluminum and other metal values found in fly ash which comprises sintering the fly ash, prior to acid leaching, with a calcium sulfate-containing composition at a temperature at which the calcium sulfate is retained in said composition during sintering and for a time sufficient to quantitatively convert the aluminum in said fly ash into an acid-leachable form.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {11}
}