エキサイトブログ

Purification of Unqualified Ammonium Paratungstate

A method of using unqualified, waste and dirty ammonium paratungstate (APT) as raw materials to generate high purity APT is presented in this paper.The method includes steps as following:1. Calcini...

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...

Tungsten Copper Contact Tip (2／2)

Theoretically, the room temperature strength of metal depends on two basic factors: one is binding force of metal atom, the other one is the resistance to dislocation motion. Common by increasing r...

Alkoxide Method Preparing Tungsten Trioxide Thin Film

Tungsten trioxide thin films has optical properties, electrical properties, magnetic properties, chemical properties, mechanical properties, thermal properties, etc., it has a variety of properties...

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...

Tungsten Slime Recycle – Gravity Flotation Method

Common Turning Inserts Tungsten ore is fragile, during beneficiation process, tungsten slime is easily formed. So tungsten tailings still contain many effective tungsten metal elements. Therefore, ...

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...