查询词典 vanadium

The research of mechanism shows that the pathway of hydrocarbons oxidation performed with vanadium picolinic complexes as catalyst involves typical free radical chain mechanism.

对催化氧化反应机理的研究结果表明，本反应体系在钒氧吡啶酸络合物作用下，烃类的氧化反应按照自由基链反应机理进行，非均相催化剂遵循与均相催化剂相似的反应机理。

The results also suggest that zeolite-encapsulated vanadium picolinic complexes catalyst can prevent the formation of μ-O dimer and possess high stability as compared to homogeneous catalyst. Moreover, heterogeneous catalyst can be recycled.

实验中还发现，均相络合物负载于分子筛中能够有效地抑制μ-O键二聚物的生成，使非均相催化剂具有更高的稳定性，并且能够回收利用。

Using zeolite NaY and ZSM-5 as solid support, the zeolite-encapsulated vanadium picolinic complexes catalyst are synthesized and examined as "ship-in-a-bottle"catalyst.

本文进行了将钒氧吡啶酸络合物负载于NaY分子筛和ZSM-5分子筛中合成&ship-in-a-bottle&型非均相络合物催化剂的研究工作。

The graphite deposit is characterized by strata-bound being a series of ore containing uraniummand vanadium predominatingly.

矿床具层控性质，为含金属元素钒、铀为主的矿石系列。

The ligand of the chiral Schiff base and acetylacetone vanadium are subjected to complexation in situ, hydrogen peroxide is taken as an oxidant, aryl alkyl thioether asymmetric oxidation reaction is catalyzed in a toluene or dichloromethane solution under low temperature or room temperature, enantioselectivity of chiral sulphoxide is 72 percent to 95 percent ee, and yield is 42 percent to 83 percent.

将上述手性西佛碱配体与乙酰丙酮氧钒原位络合，采用双氧水为氧化剂，在甲苯或二氯甲烷溶液中低温至室温下催化芳基烷基硫醚不对称氧化反应，手性亚砜的对映选择性为72％-95％ee，产率为42％-83％。

The high iron and low silica sintering of titaniferous iron concentrate was realized with optimal proportioning ore under the present condition in Panzhihua New Steel and Vanadium Limited Company.

在攀枝花新钢钒股份有限公司炼铁厂现有的资源条件下，通过优化配矿实现含钛铁精矿高铁低硅烧结，烧结矿全铁的质量分数从49.20%提高到51.46%，SiO2的质量分数从5.30%降低到4.05%。

The disadvantage of blast furnace flow for vanadium-bearing titanomagnetite is pointed out.

阐述了攀钢钒钛磁铁矿的利用现状，指出了高炉流程冶炼钒钛磁铁矿的不足。

The suitable grain size proportion of coke fines for sintering of vanadium bearing titanomagnetite concentrate obtained....

实验证明，使用适宜粒度组成的焦粉，可明显改善攀钢烧结的技术经济指标。

The BP neural networks are used to improve remnant error model of GM (1,1) obtained forecast result carried on the combining forecast model which forecast again and has carried on the forecast to the vanadium titanomagnetite output of Pan zhihua.

这里介绍了灰色系统和BP神经网络相结合的预测原理，利用BP网络，对改进的GM(1，1)残差修正模型所得预测的结果进行再预测的组合预测模型，并对攀枝花市钒钛磁铁矿的产量进行了预测。

Vanadium-bearing titanomagnetite ; comprehensive utilization ; recovery rate

钒钛磁铁矿；综合利用；回收率

It inculcates justification before God on the ground of human merits.

它说明在上帝灌输在地上人类优点。

TH Leaguer has excellent Quality Control and Management System.

本公司具有完善的品管部门。