CHARGE FOR GLASS MAKING Russian patent published in 1995 - IPC

FIELD: glass industry. SUBSTANCE: charge has silicate-containing component 20-50% ; alkaline-containing component 7-15%, and neutralized slime of galvanic manufacture - the rest. Charge can contain sand, blast furnace slag, oil shale ash or their mixture as a silicate-containing component. As an alkaline-containing component charge can contain soda or alkaline melt. Charge has the following composition, wt.-%: sand 20-30; soda 8-12; slime of galvanic manufacture - the rest, or sand 10-20; blast furnace slag 10-30; slime - the rest, or sand 10-20; blast furnace slag 10-30; alkaline melt 9-14; slime - the rest, or sand 10-20; oil shale ash 10-30; alkaline melt 8-11, and slime - the rest. Glass thermostability is 60-80 C. EFFECT: enhanced quality of charge. 7 cl, 4 tbl