초록 ▼

A process is provided for employing scrap glass (cullet) having an organic coating thereon in an overall process wherein molten-glass forming ingredients are converted into agglomerates and the agglomerates preheated to an elevated temperature prior to melting in a glass melting furnace. The organic

A process is provided for employing scrap glass (cullet) having an organic coating thereon in an overall process wherein molten-glass forming ingredients are converted into agglomerates and the agglomerates preheated to an elevated temperature prior to melting in a glass melting furnace. The organic coating is pyrolized, i.e., thermally decarbonized, during the preheating of the agglomerates.

대표청구항 ▼

In a process comprising converting molten-glass forming ingredients and water into agglomerates, heating a vertical bed of gravitationally downwardly moving agglomerates in a chamber by direct contact with a gaseous heating medium so as to produce dry, heated non-aggregated agglomerates, melting sai

In a process comprising converting molten-glass forming ingredients and water into agglomerates, heating a vertical bed of gravitationally downwardly moving agglomerates in a chamber by direct contact with a gaseous heating medium so as to produce dry, heated non-aggregated agglomerates, melting said agglomerates in a glass melting furnace, the improvement wherein a portion of said molten-glass forming ingredients includes glass cullet having an organic coating thereon and pyrolizing said coating during said heating step.