micro silica 90 - [ Sell Product ]

Place of Origin : Lanzhou,China
Post Date : 01-04-2012
Expiry Date : 01-04-2013

Trade Description

Microsilica, Also Known As Silica Fume, Is A By Product Of The Reduction Of High-purity Quartz With Coal In Electric Furnaces In The Production Of Silicon And Ferrosilicon Alloys. Microsilica Is Also Collected As A By Product In The Production Of Other Silicon Alloys Such As Ferrochromium, Ferromanganese, Ferromagnesium, And Calcium Silicon. Before The Mid-1970s, Nearly All Microsilica Was Discharged Into The Atmosphere. After Environmental Concerns Necessitated The Collection And Landfilling Of Microsilica, It Became Economically Justified To Use Microsilica In Various Applications.

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