查询词典 oxide of iron

According to the specification, the corrosion resistance of black oxide coating on iron and steel surface should be tested by oxalic acid spot test.

发黑时间约4 到5分钟，至形成均匀细密的黑色氧化膜。用自来水洗去工件表面的残留发黑液，用热风将其吹干待测。

A denitrifying oxide catalyst contains one prous metal carrier, ZSM-5 zeolite directly crystallized on said carrier and one metallic iron chosen from IB family or VIII family or their mixture. Said porous metal carrier contains at least one of prous Ni-Al, Fe-Al or Cu-Al alloys.

一种含ZSM－5沸石的脱氮氧化物催化剂含有一种多孔金属载体和直接晶化在该载体上的ZSM－5沸石和一种选自ⅠB族、Ⅷ族的金属离子或其混合物，所述多孔金属载体至少含有一种多孔镍－铝、铁－铝或铜－铝合金。

The pchloroaniline was prepared by catalytic reduction of pchloronitrobenzene with hydrazine in the presence of an iron oxide hydroxide catalyst.

在氢氧化氧铁催化剂存在下水合肼还原对氯硝基苯制备对氯苯胺，结果表明，氢氧化氧铁作为催化剂具有很好的催化活性、选择性和重复使用性。

The dispersion and other properties of red iron oxide pigment could be greatly improved by surface modification.

经过表面改性后超细氧化铁红颜料粉体的分散稳定性能及其它性能得到了大大的改善，接近国外同类产品。

The dispersion and other properties of red iron oxide pigment can be greatly improved by surface modification.

超细铁红颜料经表面改性后在水中的分散稳定性能及其他性能得到显著提高。

By retort mechanism of direct reduction,the preparation direct reduction iron with scale oxide is studied in the laboratory.

利用罐式法直接还原原理在试验室进行了氧化铁鳞制取直接还原铁的研究。

Of 50,000 tons, including Iron oxide Red, Yellow

绿、铁棕、铁紫和铁蓝，总产量达5万多吨。

In order to improve the thermal stability of yellow iron oxide pigments, a new balance precipitant coating silicon method with ethyl acetate as potential acid by controlling the dehydrolysis velocity of ethyl acetate was used.

为了改善铁黄颜料的耐热性，运用乙酸乙酯作为潜伏性酸试剂，研究了一种新的铁黄表面均匀包覆二氧化硅的方法，即通过控制乙酸乙酯的水解速率来实现在铁黄表面均匀包覆二氧化硅。

The results showed that the SiO2-coated yellow iron oxide pigments had good performances in color transformation, disperse stability, capacity of absorptive oil.

结果表明，均匀包覆二氧化硅可有效改善铁黄颜料的综合性能。

This paper studies the test conditions of ICP-AES method that is used to determine the content of oxides of silicon, aluminium, calcium, manganese and sulphur in iron oxide powder.

本文研究了ICP-AES法测定氧化铁粉中硅、铝、钙、锰和硫的实验条件。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。