| 摘要 |
<p>PURPOSE:To easily desulfurize lead compd. dust and use the same as the starting material of glass by adding silica stone powder to the lead compd. dust which is captured from waste gas and incorporated with sulfur oxide, mixing and burning at a prescribed temp. CONSTITUTION:The silica stone powder having 10-50mum average particle diameter is added to the lead compd. dust by >=2/3 weight per the dust and mixed uniformly to obtain a mixture. Then, the mixture is burnt at >=1100 deg.C with an electric furnace, etc., to desulfurize and to obtain a burned lead dust. Then, the dust is pulverized and classified and used as the starting material of a lead glass.</p> |
