FOERFARANDE FOER FRAMSTAELLNING AV MINERALFIBRER INNEHAOLLANDE EN ALUMINIUMINNEHAOLLANDE AOTERSTOD FRAON EN METALLSMAELTNINGSPROCESS OCH PAO SAO SAETT FRAMSTAELLDA FIBRER.

摘要

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.