富铝红柱石和富铝红柱石-铝陶瓷MF膜用于含油废水处理的性能研究

本文提供了关于使用富铝红柱石和富铝红柱石．铝管式陶瓷膜从实际的和合成的含油废水中分离油的实验研究结果。富铝红柱石和富铝红柱石．铝微滤（MF）对称膜由高岭土粘土和α-铝粉合成。本文研究了合成废水处理过程中，

Microstructure and Grain Boundary Character of Al2O3—Mullite—ZrO2—SiC Ceramic Compostie

Microstructure and grain boundary character of hot pressed binary Al2O3(mullite,ZrO2)-SiC omposites and quaternary Al2O3-mullite-ZrO2-SiC composite were studied by electron microscopy and microanalysis,Results suggest that there exist grain boundary solid solutions due to elemental diffusion near SiC and matrix oxides grain boundaries.

Mullite—corundum Refractories with High Creep Resistance

Mullite-corundum bricks and kiln furni-ture with high creep resistance and good thermal shock resistance were fabricated based on low cost raw materials,the approaches of introducing some additives and optimisig,chemical composition and partical size were mployed to produce a high temperature matrix phase with high creep resistance and good thermal shock resistance.

《2008年加工贸易禁止类商品目录》发布

国家商务部近日发布《2008年加工贸易禁止类商品目录》，共有1816种商品列入其中，建材及相关材料名单如下：禁止出口的包括磷片状天然石墨、其他粉末或粉片状天然石墨、其他天然石墨、硅砂及石英砂（加工非7202铁合金产品除外）、标准砂、其他天然砂、石英（天然砂除外）、石英岩、不论是否煅烧的高岭土、不论是否煅烧的其他高岭土类似土、膨润土、耐火粘土、其他粘土、“红柱石，蓝晶石及硅线石”、富铝红柱石、火泥、第纳斯土、白垩、天然硫酸钡（重晶石）、天然碳酸钡（毒重石）、硅藻土、其他硅质化石粗粉及类似的硅质土、浮石、刚玉岩、天然刚玉砂等天然磨料、

中华人民共和国海关总署公告2008年第95号

经国务院批准,自2009年1月1日起,对附件所列税日矿产品的进口环节增值税税率由13%提高到17%。特此公告。