C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 3/02 (2006.01) C03B 5/00 (2006.01) C03C 1/00 (2006.01) C03C 1/02 (2006.01) C03C 13/00 (2006.01) C03C 13/06 (2006.01)
Patent
CA 2312836
Man-made vitreous fibres having a content of aluminium of at least 14 % are produced by providing a charge of raw mineral material which contains ferro- chromium slag, preferably at least 5 % by weight ferro-chromium slag, in a furnace, melting the charge in the furnace to form a melt and fiberising the melt to form fibres.
La présente invention concerne des fibres vitreuses contenant au moins 14% d'aluminium. Le procédé consiste à prendre une charge de matière minérale brute contenant des scories de ferrochrome, et à la mettre dans un four. Les scories représentent de préférence 5% de la masse de la matière minérale brute. Le procédé consiste ensuite à faire fondre la charge dans le four pour obtenir un bain de fusion, puis à fibériser le bain de façon à former les fibres.
Christensen Vermund Rust
Jensen Soren Lund
Gowling Lafleur Henderson Llp
Rockwool International A/s
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