エキサイトブログ

Factors of Hydrothermal Method Preparing Hexagonal Tungsten Trioxide

In the hydrothermal environment to prepare tungsten trioxide, the existence of hydrogen ions (H+) carbide insert is one of the important factors which affect crystal form of product, especially wh...

Dressing of Scheelite and Wolframite Mixture Ore

Dressing of scheelite and wolframite mixture oreThe characteristic of scheelite and wolframite mixture ore is low grade and fine dissemination particle sizes. Black and white tungsten ore closely c...

Rare Earth Doped Tungsten Electrode Performance Effect by Rare Earth Doping Quantity

With the development of welding industry, modern industry has higher requirements on electrode welding property, welding stability and pollution standard. Thoriated tungsten electrodes have good we...

Negative Thermal Expansion of Zirconium Tungstate

Most materials expand with heat and contract with cold as the temperature changes. However, some materials exhibit the opposite property - thermal shrinkage and cold expansion. These materials are ...

Ways to Judge the Polluted IG Tungsten Filament

The IG tungsten filament is known as the ion source which is a discipline with a wide range of applications. The IG tungsten filament is indispensable equipment in many basic research areas, such a...

Tungsten Trioxide for Hydrodesulfurization and Denitrification Catalyst

Currently, scientific research and practical results in the hydrotreating catalyst in and abroad mainly be: improving catalyst hydrogenation activity and life by using new type of composite carrier...

Tungsten Alloy Shielding Needle Tube Transport System

In the PET/CT center, mostly are intravenous injection. Tungsten alloy shielding needle tube transport system is being used when injecting. Tungsten alloy has high density, high radiation shielding...

Tiger Tungsten Gold Plated Bar

In Tiger lunar year, Tiger tungsten gold plated bar could be send as the gift for friends, relatives who was born in the year of Tiger; also it could be used as the collection or commemoration for ...

Tungsten Ore Flotation Organic Inhibitor – Citric Acid

Among tungsten ore flotation inhibitor, sodium silicate is the most widely used one. But when encounters some complex accompanying tungsten mine deposition, sodium silicate may become useless. Alth...

Tungsten Oxide Nanoparticle as a Catalyst for Malonic Acid Ester Synthesis via Ozonolysis

Ozonolysis is of great interest to synthetic organic chemistry because it is one of the most efficient tools for oxidatively cleaving carbon-carbon double bonds. Ozonolysis is generally used to pre...