查询词典 calcined

The oil shale ash is disintegrated into fine powder less than 150 eye to be calcined at a certain temperature, then sulfuric acid solution is added for performing acid dipping, after solid-liquid separation and solid residue removal, aluminum sulfate solution is obtained and is then filtered after sodium hydroxide solution is added in, further metallic ions as Ca2 , Mg2 , Fe3 , Fe2 and the like are filtered from the solution, thereby sodium aluminate solution is obtained, gas of carbon dioxide is communicated into the sodium aluminate solution to obtain aluminum hydroxide sediment, and after drying and calcining aluminum hydroxide powder is obtained.

将油页岩灰渣粉碎至＜150目的细粉，在一定温度下煅烧，加入硫酸溶液进行酸浸，固液分离，去除固体残渣，得硫酸铝滤液，加氢氧化钠溶液后过滤，滤除溶液中的Ca 2 、Mg 2 、Fe 3 、Fe 2 等金属离子，得偏铝酸钠溶液，向偏铝酸钠溶液通入二氧化碳气体，得到氢氧化铝沉淀，经烘干、煅烧得到氢氧化铝粉末。

XRD results indicated the formation of aluminates on the supported samples calcined at high temperatures, which prevents the transformation ofγ-Al〓O〓 toθ-Al〓O〓 and α-Al〓O〓.

吸附量热结果表明，600℃焙烧的6％K〓O/γ-Al〓O〓具有很强的碱性，且表面积达到160m〓/g，为很好的固体碱催化剂。

The results show that:(1) Light-calcined MgO powders prepared with nature magnesite or Mg2 both are of face-centered cubic structure.

结果发现：水化前后得到的都是面心立方晶体结构的MgO，但水化前得到的轻烧MgO中仍存在官能团CO32-的残留物，而水化后得到的轻烧MgO中不存在CO32-，而且颗粒变得较易破碎，大大减少了细磨时间；再者，水化后的轻烧MgO活性较高，加上Mg2在分解过程中残留的水分对MgO 的烧结起催化作用，因此，使其经高温锻烧制得的烧结镁砂的开口气孔率由水化前的2.0%下降到0.6%，闭口气孔率由水化前的6.1%下降到2.8%，体积密度由水化前的3.29g/cm3提高到3.46g/cm3。

The present status of traditional furnaces for calcined-coke production and problems met in practical use are discussed.

介绍引进电煅烧炉炉型的使用情况和存在的问题，并提出改良型的意见和新设计炉型的主要特点和要达到的目的。

The calcined Mg-Al layered double hydroxides for removal of NO2(superscript -) from aqueous solution was investigated.

通过静态吸附实验，研究了焙烧层状氢氧化镁铝对水溶液中NO2的吸附脱除性能，并用粉末X射线衍射对Mg-Al CLDH吸附前后的结构进行了表征。

The 1%-Ni-doped TiO_2 calcined at 400℃has the best photocatalic ability.An indigo carmine solution of 10 mg/L was completely photodegraded in 50 minutes in the presence of as-obtained photocatalyst under visible light.A series of structure analysis,such as XPS,TEM,are employed to investigate the structure of the Ni/TiO_2 composite in details.The results indicate that at the lower temperature,instead of the simple interface compounding reported by some references,the Ni ions could be inserted into the crystal lattice of TiO_2,and form the innovative material.

通过XPS、TEM等多种表征手段对镍掺杂纳米二氧化钛的结构与光(来源：6414A41BC论文网www.abclunwen.com)催化性能进行了深入分析研究，发现在较低温度下煅烧可以获得镍离子晶格掺杂而不是表面复合的新型材料，通过镍离子缺陷能级的引入改变了二氧化钛的能级结构，提高了材料可见光下的光催化氧化的效率。

The company produces light burned magnesia magnesite Department selected a stone, the use of scientific sintering technology, burned by the light reflection kiln, rotary kiln or fluidized bed boiler calcine from strictly controlled loss on ignition, product calcined uniform for the amorphous powder , odorless, tasteless, non-toxic.

本公司生产的轻烧氧化镁系选用一级菱镁矿石，采用科学的烧结技术，经轻烧反射窑、回转窑或沸腾炉煅烧而成，严格控制烧失量，产品煅烧均匀，为无定形粉末、无臭、无味、无毒。

In addition, Omya China holds the sole agency for Burgess (calcined and water washed Kaolin) and Mondo in China.

此外，欧米亚中国独家代理美国 Burgess煅烧、水洗高岭土和Mondo滑石粉、白云石以及云母粉的业务。

The alumina supporters with 4-7mm were impregnated with an aqueous solution of RE, Sr, Cu and Zr acetate mixture, and then were calcined in a muffle furnace in air at 800-1000℃ for several hours.

将φ4—7毫米颗粒状氧化铝载体浸渍于RE、Sr、Cu、Zr的醋酸盐混合物水溶液，在800—1000℃空气气氛下于马弗炉中煅烧数小时。

Transparent YGO ceramics were prepared by sintering at 1670℃ for 2h in vacuum using the powders calcined at 1100℃. The YGO ceramics shows a high in-line transmittance of 74.6% in the visible-light region, much higher than that of transparent Y2O3 ceramics prepared by the same process.

采用所制备的YGO：Eu纳米粉体，在1670℃真空烧结2h可获得透光性良好的透明陶瓷，样品在可见光区的最高透过率可达74.6%，高于相同工艺条件下制备的氧化钇透明陶瓷。

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。