铁尖晶石

经解剖中间罐水口堵塞样品，查清堵塞原因主要是高溶点的树枝状Al2O3，铁尖晶石夹杂粘附在水口壁上并聚集长大。

The tundish nozzle clogging samples were taken and analyzed . The clogging causes are understood . Main cause is Al2O3 inclusion and hercynite inclusions stick on the nozzle wall and accumulated .

当实验温度为680C时，黑云母与斜长石发生脱水熔融和部分熔融，转换成白云母、绿帘石、铁尖晶石、石英等物质成分；

At the temperature of 680 ℃, biotite and plagioclase became dehydrated-melted and partially melted , transformed into muscovite , epidote , hercynite , quartz , etc. ;

试验得出，不同组成陶瓷层主要由α－Al2O3和少量铁尖晶石（FeO·Al2O3）组成。

It is obtained from experiments that the ceramic coating with various composition is mainly consisted of α - Al2O3 and a little of iron spinel ( FeO · Al2O3 ) .

Fe-绿泥石只有一个550℃±的脱羟吸热谷，并转变为赤铁矿和铁尖晶石；

Fe-chlorite has only one dehydration endothermic peak at 550 ℃± and it has been transformed into hematite and hercynite .

近年钛、镓、锰以及铁尖晶石已经应用于分解水及降解有机染料的研究中，表现出良好的可见光催化性能。

In recent years , titanium , gallium , manganese and iron spinel have been applied to decomposes water and degradation organic dyes , showing good visible light catalytic performance .

刚玉颗粒与渣中的FeO、Na2O和K2O反应生成铁铝尖晶石和少量针状β-Al2O3；

Corundum grain reacts with FeO , Na_2O and K_2O of slag generating ferric oxide-alumina spinel and some β - Al_2O_3 ;

对陶瓷层孔隙率和组织结构进行了分析，结果表明：陶瓷层由大量铁铝尖晶石（FeAl2O4），少量刚玉（Al2O3）以及基体玻璃相组成，孔隙率为4.6%。

The porosity and microstructure of ceramic layer were analysed . The results show that the porosity of ceramic layer consisted of FeAl 2O 4 , Al 2O 3 and glass phase is 4.6 % .

正丁烯在铁系尖晶石催化剂上氧化脱氢的反应机理

Reaction mechanism of oxidative dehydrogenation of butenes on Ferrite Catalysts

而铁铝尖晶石又有很好的挂窑皮能力。

Luckily , hercynite has good property of adhering coating .

燃烧合成陶瓷复合钢管陶瓷层中的铁铝尖晶石

Spinel Phase in Ceramic Layer of Composite Pipe by Combustion Synthesis Process

原位合成方镁石-铁铝尖晶石材料的烧结工艺及性能研究

In-situ synthesis of periclase-hercynite material : sintering process and properties

以铁铝尖晶石和镁砂为原料，采用烧结法制备了氧化镁铁铝尖晶石耐火材料。

The magnesia-hercynite refractories were prepared with magnesia and hercynite by sintering process .

该产品是基于铁铝尖晶石和特殊烧结技术而发展的新一代重型镁质砖。

This is a development of a new generation of heavy duty magnesia brick based on HERCYNITE SPINEL and special burning technology .

一种含铁的黑色尖晶石。

A dark-colored spinel containing iron .

表明铁离子出现在尖晶石结构中四面体间隙位和八面体间隙位的能力是极为重要的。

This paper shows the importance of ability of iron to occur on both the tetrahedral and octahedral sites of the spinel structure .

研究认为，利用金属铁源与Al2O3反应可以生成铁铝尖晶石，其关键是控制合适的气氛，保证金属铁源被氧化成FeO。

It was found that , hercynite could be fomed in situ by using ferreous raw material and Al2O3 , it was important to control appropriate atmosphere , in which ferreous raw material could be oxidized to FeO .

用穆斯堡尔谱学的方法研究了乙苯脱氢含钾铁系催化剂中活性相的前身，铁钾尖晶石结构的形成过程。

Fe-K spinel structure is the predecessor of active phase of potassium promoted iron-based catalyst for dehydrogenation of ethylbenzene .

研究了以特级矾土和铁鳞为原料，采用烧结法合成铁铝尖晶石时，还原气氛和烧结温度的影响。

The effects of reducting atmosphere and firing temperature on the sintering synthesis of hercynite clinker were studied using special grade bauxite and iron scale powder as main starting materials .