Method for the production of mineral wool and iron from serpentine ore
Abstract
Magnesium silicate mineral wools having a relatively high liquidus temperature of at least about 1400.degree. C. and to methods for the production thereof are provided. The methods of the present invention comprise melting a magnesium silicate feedstock (e.g., comprising a serpentine or olivine ore) having a liquidus temperature of at least about 1400.degree. C. to form a molten magnesium silicate, and subsequently fiberizing the molten magnesium silicate to produce a magnesium silicate mineral wool. In one embodiment, the magnesium silicate feedstock contains iron oxide (e.g., up to about 12% by weight). Preferably, the melting is performed in the presence of a reducing agent to produce an iron alloy, which can be separated from the molten ore. Useful magnesium silicate feedstocks include, without limitation, serpentine and olivine ores. Optionally, silicon dioxide can be added to the feedstock to lower the liquidus temperature thereof.
- Inventors:
-
- Albany, OR
- Scio, OR
- Lebanon, OR
- Issue Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1029266
- Patent Number(s):
- 8033140
- Application Number:
- 12/124,421
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
- DOE Contract Number:
- 04-14-HRL
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
O'Connor, William K, Rush, Gilbert E, and Soltau, Glen F. Method for the production of mineral wool and iron from serpentine ore. United States: N. p., 2011.
Web.
O'Connor, William K, Rush, Gilbert E, & Soltau, Glen F. Method for the production of mineral wool and iron from serpentine ore. United States.
O'Connor, William K, Rush, Gilbert E, and Soltau, Glen F. Tue .
"Method for the production of mineral wool and iron from serpentine ore". United States. https://www.osti.gov/servlets/purl/1029266.
@article{osti_1029266,
title = {Method for the production of mineral wool and iron from serpentine ore},
author = {O'Connor, William K and Rush, Gilbert E and Soltau, Glen F},
abstractNote = {Magnesium silicate mineral wools having a relatively high liquidus temperature of at least about 1400.degree. C. and to methods for the production thereof are provided. The methods of the present invention comprise melting a magnesium silicate feedstock (e.g., comprising a serpentine or olivine ore) having a liquidus temperature of at least about 1400.degree. C. to form a molten magnesium silicate, and subsequently fiberizing the molten magnesium silicate to produce a magnesium silicate mineral wool. In one embodiment, the magnesium silicate feedstock contains iron oxide (e.g., up to about 12% by weight). Preferably, the melting is performed in the presence of a reducing agent to produce an iron alloy, which can be separated from the molten ore. Useful magnesium silicate feedstocks include, without limitation, serpentine and olivine ores. Optionally, silicon dioxide can be added to the feedstock to lower the liquidus temperature thereof.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 11 00:00:00 EDT 2011},
month = {Tue Oct 11 00:00:00 EDT 2011}
}