Preparation of silicate or glass in a furnace with burners...

Details Preparation of silicate or glass in a furnace with burners... Preparation of silicate or glass in a furnace with burners...

2004-09-07

2009-08-25

Bos, Steven (Department: 1793)

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C423S331000, C423S332000

Reexamination Certificate

active

07578988

ABSTRACT:
The invention relates to a process for preparing a silicate of an element chosen from alkali metals, alkaline-earth metals or rare earths, comprising a reaction between silica and a sulfate of said element in a reactor equipped with at least one submerged burner within a molten mass, said submerged burner being fed with a gas containing oxygen, an excess of fuel/reducing agent being introduced into the reactor relative to the oxygen effectively consumed. The process allows the reaction to be carried out satisfactorily and at relatively low temperature.

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U.S. Appl. No. 12/240,068, filed Sep. 29, 2008, Jeanvoine, et al.

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