Process for preparing batch materials for the manufacture of...

Details Process for preparing batch materials for the manufacture of... Process for preparing batch materials for the manufacture of...

2002-10-04

2008-11-11

Lopez, Carlos (Department: 1791)

Glass manufacturing

Processes

Fining or homogenizing molten glass

C423S331000, C423S332000, C423S334000, C501S027000

Reexamination Certificate

active

07448231

ABSTRACT:
The invention relates to a process for manufacturing compounds based on one or more silicates of alkali metals and/or of alkaline-earth metals, optionally in the form of mixed silicates that combine at least two of these elements, said process involving:(i) preferably a conversion reaction (1) in which halides of said alkali metals and/or of said rare earths and/or of said alkaline-earth metals are converted into the corresponding sulfates;(iii) a conversion reaction (2) in which said sulfates together with silica are converted into the corresponding silicates, the heat supply needed for this conversion being provided, at least in part, by a combustion reaction (3) using a submerged burner or a plurality of submerged burners.

REFERENCES:
patent: 4269817 (1981-05-01), Rohrmann
patent: 5344633 (1994-09-01), Sorensson et al.
patent: 5785940 (1998-07-01), Carroll et al.
patent: 6460376 (2002-10-01), Jeanvoine et al.
patent: 6739152 (2004-05-01), Jeanvoine et al.
patent: 7097818 (2006-08-01), Lindner et al.
patent: 0 812 809 (1997-12-01), None
patent: 1 211 098 (1960-03-01), None
patent: 00/46161 (2000-08-01), None

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