焦作煤系高岭土煅烧增白技术研究

焦作地区高岭石粘土矿主要赋存在石炭系中统本溪组,是非常优良的高岭土资源。本次实验以焦作地区煤系高岭土为原料,进行矿物成分和含量分析,研究其煅烧过程中添加剂的种类、用量、入料粒度、煅烧时间、煅烧温度等因素对白度的影响。研究表明：在900°C时样品加盖煅烧4小时并添加5%的还原剂和2%氯化剂做添加剂,试样的白度由45.84%增加到了88.68%,满足了橡胶填料、中等造纸涂料的需要,为本地区煤系高岭土的开发利用提供了重要的依据。

Cenozoic Basal Loose Sediment Characteristics and Evolutional Analysis in Yangcun Coalmine

Through aggregate analysis of the Cenozoic basal loose sediment formative setting, thickness, impacting factors and sedimentary texture, worked out the thickness spatial distribution heterogeneity of gravel, sand and clay layers, as well as different changing patterns of sediment granularity on sections because of different grain size. On this basis, has analyzed the sedimentary environment of the basal aquifer during its formation that including alluvial-pluvial, talus and stream environments, and their evolutional process. The result provides important reference frame to cognition of basal loose sediment aquifer water yield property, type and reasonable height of safety pillars against water during the mining in shallow part.