Process for the recovery of alumina from fly ash
Abstract
An improvement in the lime-sinter process for recovering alumina from pulverized coal fly ash is disclosed. The addition of from 2 to 10 weight percent carbon and sulfur to the fly ash-calcium carbonate mixture increase alumina recovery at lower sintering temperatures.
- Inventors:
-
- Ames, IA
- Issue Date:
- Research Org.:
- Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
- OSTI Identifier:
- 864653
- Patent Number(s):
- 4397822
- Application Number:
- 06/424,703
- Assignee:
- Murtha, Marlyn J. (Ames, IA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- DOE Contract Number:
- W-7405-ENG-82
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; recovery; alumina; fly; ash; improvement; lime-sinter; recovering; pulverized; coal; disclosed; addition; 10; weight; percent; carbon; sulfur; ash-calcium; carbonate; mixture; increase; sintering; temperatures; percent carbon; coal fly; pulverized coal; fly ash; weight percent; calcium carbonate; carbonate mixture; sintering temperature; mixture increase; sinter process; /423/
Citation Formats
Murtha, Marlyn J. Process for the recovery of alumina from fly ash. United States: N. p., 1983.
Web.
Murtha, Marlyn J. Process for the recovery of alumina from fly ash. United States.
Murtha, Marlyn J. Tue .
"Process for the recovery of alumina from fly ash". United States. https://www.osti.gov/servlets/purl/864653.
@article{osti_864653,
title = {Process for the recovery of alumina from fly ash},
author = {Murtha, Marlyn J},
abstractNote = {An improvement in the lime-sinter process for recovering alumina from pulverized coal fly ash is disclosed. The addition of from 2 to 10 weight percent carbon and sulfur to the fly ash-calcium carbonate mixture increase alumina recovery at lower sintering temperatures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {8}
}
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