Process for producing mineral fibers incorporating an alumina-co

Details Process for producing mineral fibers incorporating an alumina-co Process for producing mineral fibers incorporating an alumina-co

Filed on

1989-07-31

Date issued

1991-09-03

Examiner

Group, Karl

Patent Class

Compositions: ceramic

SubClass

Ceramic compositions

SubSubClass

Glass compositions, compositions containing glass other than...

Other Related Categories

501 36, 501 95, 501128, 501155, 65 2, 65 19, C03C 1300

Type

Patent

Status

active

Patent number

050455060

Description

ABSTRACT:
A process for producing mineral fibers and the fibers thus produced are disclosed. The process involves forming a melt comprising an alumina-containing residue from a metal melting operation and one or more mineral raw materials suitable for forming mineral fibers, dividing the melt into streams and cooling the streams to produce the fibers. The residue from the metal melting operation acts as an inexpensive, substantially non-polluting source of alumina which can be used to increase the alumina content of the fibers and thus improve their properties, or which can be used as a replacement for more expensive or less desirable sources of alumina.

REFERENCES:
patent: 3867158 (1975-02-01), Hopkins
patent: 4365984 (1982-12-01), Gee
patent: 4818289 (1989-04-01), Mantymaki
patent: 4822388 (1989-04-01), Gee
Gillespie-CIM Bulletin of Jan. 1948, "The Manufacture of Mineral Wool".
Nafziger et al.-CIM Bulletin of Aug. 1976, "Electric Furnace Melting of By-Product Metallurgical Slags".
Vaillancourt-Le Quebec Industriel-May 1988-pp. 32, 33, "Cafco Fait Progresser L'Usage Du Four A Roc Electrique".
Industrial Minerals-Sep. 1986.
The Journal of the Canadian Ceramic-vol. 50, 1981.
Peacy-Canadian Meallurgical Quarterly-vol. 20, No. 2, pp. 241-245, 1981, "Mineral Wool Production from Copper Reverberatory Slag".

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