金属化

Metal phosphonate; Coordination polymer; Hydrothermal synthesis; Hybrid materials; Crystal structure

金属有机膦酸盐；配位聚合物；水热合成；杂化材料；晶体结构

Two times hydrolyzation of Fe~(3+) and Cr~(3+) was firstly pointed out in the process of pillar preparation with hydrothermal method. In order to improve the thermal stability, Fe/Cr-Si-pillaring agent solution was synthesized by hydrolyzing Fe~(3+) and Cr~(3+) solution on the surface of silica sol, and Fe/Cr-Si-pillared montmorillonite (Fe/Cr-Si-PILM) was prepared with conventional method and hydrothermal method. Because the technical innovation of preparation is the best way to improve the PILM properties, two novel methods (Microwave method and Ultrasonication method) have been studied to synthesize Fe/Cr-PILM.In order to expand PILMs new application in the field of coal conversion, catalytic activity of Fe/Cr-Si-PILM catalyst in LongKou lignite and ShenHua coal residue liquefaction was discussed and characterized in the last part of this paper.

研究证明：蒙脱石的预处理是可行的，我们以预处理后的Ca-M为原料，研究并优化了PILM的水热法制备工艺，提出了金属离子的二次水解法；为了提高PILM的热稳定性，我们自制了硅溶胶，合成了Fe／Cr-Si三元复合柱化剂，并制备了Fe／Cr-Si-PILM；在PILM合成中，制备技术的革新是改进PILM性能的重要方法，为此我们探索了微波合成法和超声波合成法在制备Fe／Cr-PILM中的应用；最后，我们选择龙口褐煤和神华煤液化残渣为研究对象，探索了Fe／Cr-Si-PILM催化剂在煤炭液化中的应用，希望能开拓PILM应用的新领域。

A reduction-coupling-etherification reaction between aromatic aldehydes or ketones (1) and alcohols ( 2 ) to yield corresponding diether ( 3 ) of pinacol in the presence of tin and chlorotrimethylsilane.

在三甲基氯硅烷、四氢呋喃体系中，芳香醛、酮和醇在金属锡的作用下发生还原-偶联-醚化反应生成相应的频那醇二醚类化合物。

Cetyl pyridinium bromide monohydrate is used to exchange the metal irons in the innerlayers of sodium-based bentonite which is used as raw material and the organobentonites are obtained with orthogonal technique by changing the reaction conditions such as reaction time,reaction temperature,pH,the quantity of quaternary ammonium,and the ratio of bentonite to water.

采用正交L16(45)实验法，以Na基膨润土为原料，用溴化十六烷基吡啶为插层剂，与膨润土层间的金属离子进行离子交换，通过改变反应温度、反应时间、pH值、固液比、季铵盐添加量5个因素，得到不同条件下的有机膨润土。

C/C composites ; Tungsten ; X-ray ; Radiopacity treatment

炭/炭复合材料；金属钨； X射线；可视化处理

It specializes in manufacturing of diamond cubic boron nitride grinding wheel with various specifications and the products include diamond resinoid bonded grinding wheel, CBN resinoid bonded grinding wheel, diamond electroplated grinding wheel, diamond bronze grinding wheel, diamond paste, diamond grinding head and tungsten steel lathe tool used for machining of various metals.

产品介绍：我厂技术力量雄厚，设备齐全，工艺精湛，专门生产各种规格的金刚石，立方氮化硼砂轮，产品包括金刚石树脂砂轮，CBN树脂砂轮，金刚石电镀砂轮，金刚石青铜砂轮，金刚石研磨膏，金刚石磨头，和加工各种金属的钨钢车刀http：//www.86wheels.com

It specializes in manufacturing of diamond cubic boron nitride grinding wheel with various specifications and the products include diamond resinoid bonded grinding wheel, CBN resinoid bonded grinding wheel, diamond electroplated grinding wheel, diamond bronze grinding wheel, diamond paste, diamond grinding head and tungsten steel lathe tool used for machining of various metals.

我厂技术力量雄厚，设备齐全，工艺精湛，专门生产各种规格的金刚石，立方氮化硼砂轮，产品包括金刚石树脂砂轮，CBN树脂砂轮，金刚石电镀砂轮，金刚石青铜砂轮，金刚石研磨膏，金刚石磨头，和加工各种金属的钨钢车刀http：//www.xhxwheels.com

It specializes in manufacturing of diamond cubic boron nitride grinding wheel with various specifications and the products include diamond resinoid bonded grinding wheel, CBN resinoid bonded grinding wheel, diamond electroplated grinding wheel, diamond bronze grinding wheel, diamond paste, diamond grinding head and tungsten steel lathe tool used for machining of various metals.

商品说明：我厂技术力量雄厚，设备齐全，工艺精湛，专门生产各种规格的金刚石，立方氮化硼砂轮，产品包括金刚石树脂砂轮，CBN树脂砂轮，金刚石电镀砂轮，金刚石青铜砂轮，金刚石研磨膏，金刚石磨头，和加工各种金属的钨钢车刀http：//www.86wheels.com

The factory possesses abundant technical personnel, complete equipment and consummate technology. It specializes in manufacturing of diamond cubic boron nitride grinding wheel with various specifications and the products include diamond resinoid bonded grinding wheel, CBN resinoid bonded grinding wheel, diamond electroplated grinding wheel, diamond bronze grinding wheel, diamond paste, diamond grinding head and tungsten steel lathe tool used for machining of various metals.

我厂技术力量雄厚，设备齐全，工艺精湛，专门生产各种规格的金刚石，立方氮化硼砂轮，产品包括金刚石树脂砂轮，CBN树脂砂轮，金刚石电镀砂轮，金刚石青铜砂轮，金刚石研磨膏，金刚石磨头，和加工各种金属的钨钢车刀http：//www.86wheels.com 磨削是目前半精加工和精加工的主要加工方法之一，砂轮则是磨削加工中重要磨具，砂轮一般安装在平面磨床、外圆磨床和内圆磨床上使用，也可安装在砂轮机磨刀机，万能磨刀机上刃磨刀具。

It specializes in manufacturing of diamond cubic boron nitride grinding wheel with various specifications and the products include diamond resinoid bonded grinding wheel, CBN resinoid bonded grinding wheel, diamond electroplated grinding wheel, diamond bronze grinding wheel, diamond paste, diamond grinding head and tungsten steel lathe tool used for machining of various metals.

外圆磨砂轮，平面磨砂轮，无心磨砂轮，磨盘砂轮，加强型砂轮我厂技术力量雄厚，设备齐全，工艺精湛，专门生产各种规格的金刚石，立方氮化硼砂轮，产品包括金刚石树脂砂轮，CBN树脂砂轮，金刚石电镀砂轮，金刚石青铜砂轮，金刚石研磨膏，金刚石磨头，和加工各种金属的钨钢车刀#http：//www.86wheels.com

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。