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Machine translation
1. (WO1981002732) METHOD FOR PREPARING GLASS-SILICATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002732    International Application No.:    PCT/EP1981/000024
Publication Date: 01.10.1981 International Filing Date: 26.03.1981
IPC:
C03B 3/02 (2006.01)
Applicants:
Inventors:
Priority Data:
3012074 28.03.1980 DE
Title (EN) METHOD FOR PREPARING GLASS-SILICATE
(FR) PROCEDE DE PREPARATION DE VERRE-SILICATE
Abstract: front page image
(EN)Method for preparing glass-silicate from silica and appropriate metal compounds according to the method of melting with thermal pretreatment of the mixture; one of the essential components of the mixture is preheated by means of the heat-energy contained in the residual gas and/or by means of heat-energy coming from other sources; this essential component is thus homogeneously mixed with other component then the heated mixture is brougth to the melting stage. Preheating of the principal component can be carried on until a temperature range provides to the preheated mixture a mean temperature which is below the melting temperature of the alcaline and alcaline-hearth metal components. The main preheated component is for instance sand. If the heat-energy contained within the residual gas is to be recovered, the residual gas must be circulated through heat exchangers.
(FR)L"invention concerne un procede de preparation de verre-silicate en partant de silice et de composes metalliques appropries par la methode de fusion avec pretraitement thermique de melange; l"un des composants essentiels du melange est prechauffe au moyen de l"energie-chaleur contenue dans les gaz residuels et/ou au moyen d"energie-chaleur provenant d"autres sources; ce composant essentiel est melange par la suite, de facon homogene, aux autres composants, puis le melange echauffe est mene au stade fusion. Le prechauffage du composant principal peut etre mene jusqu"a un domaine de temperature, qui assure au melange prechauffe une temperature moyenne, qui elle se situe en dessous de la temperature de fusion des composants metalliques alcalin et alcalino-terreux. Le composant principal prechauffe est par exemple le sable. Si l"on veut recuperer de l"energie-chaleur contenue dans les gaz residuels, l"on aura soin de faire passer ces gaz residuels sur des echangeurs de chaleur.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)