Evaporator and method for producing synthetic fused quartz
AssigneeHeraeus Quarzglas GmbH & Co. KG
InventorsKlaus-Uwe BADEKE, Martin TROMMER
Life of this patent
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Abstract
A method for manufacturing quartz glass, wherein (a) an appropriate liquid starting material is evaporated by spraying it into a vertically arranged evaporation chamber, (b) the vaporous starting material is oxidized to form SiO2, and the SiO2 is collected. The method is characterized in that the starting material to be evaporated is sprayed in on the bottom of the evaporation chamber and the vaporous starting material is removed at the top end of the evaporation chamber, wherein the evaporation chamber is designed such that components depositing in the chamber accumulate on the bottom of the evaporator and are sprayed once again, as well as an evaporator for applying the method.
Claims27
1-26. (canceled)
A method of manufacturing quartz glass comprising:
- evaporating an appropriate liquid starting material by spraying it into a vertically arranged evaporation chamber;
- oxidizing the vaporous starting material to form SiO2;
- and
- collecting the SiO2;
- characterized in that the starting material to be evaporated is sprayed in at the bottom of the evaporation chamber and the vaporous starting material is removed at the top end of the evaporation chamber, wherein the evaporation chamber is designed such that components depositing in the chamber accumulate on the bottom of the evaporator and are sprayed once again.
An evaporator comprising:
- a vertically oriented evaporation chamber bounded by walls;
- an atomizing nozzle arranged at the bottom of the evaporator to spray the liquid starting material into the evaporation space thereby evaporating the liquid starting material and oxidizing to form SiO2;
- and
- an outlet at the top end of the evaporator for removing vaporous starting material;
- wherein the evaporator is configured such that components depositing in the chamber accumulate on the bottom of the evaporator and are sprayed once again.
Dependencies are inferred from the claim text.