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Ammonium Metatungstate Applied for Honeycomb Ceramic Catalyst

Details: Category: Tungsten Information; Published on Wednesday, 10 June 2020 19:05; Written by Yahong; Hits: 1840

Ammonium metatungstate is used as the active component in the preparation of honeycomb ceramic catalyst. And the prepared high specific surface area porous honeycomb ceramic catalyst is particularly suitable for soot purification in thermal power plants, glass plants, chemical plants and other fields.

A Method for Preparing Ammonium Paratungstate

Details: Category: Tungsten Information; Published on Wednesday, 10 June 2020 19:03; Written by Yahong; Hits: 1738

This is a method of preparing ammonium paratungstate. This is just a general method for preparing ammonium paratungstate in the prior art.

Ion Exchange Method for Preparation of Ammonium Paratungstate

Details: Category: Tungsten Information; Published on Wednesday, 10 June 2020 19:00; Written by Yahong; Hits: 1771

Ammonium paratungstate, APT for short, is an important inorganic salt product with chemical formula (NH4)10(H2W12O42) ·4H2O. There are many ways to prepare APT, including ion exchange method, neutralization method, solvent extraction method, ultrasonic method, two step ion exchange method, evaporation crystallization method, and tungstic acid method, etc. Wherein, ion exchange process is attracted much attention.

How to Prepare Ammonium Paratungstate by Ion Exchange Method?

Details: Category: Tungsten Information; Published on Wednesday, 10 June 2020 19:02; Written by Yahong; Hits: 1866

How to prepare ammonium paratungstate by ion exchange method?

High Purity Ammonium Paratungstate Prepared by Two Step Ion Exchange

Details: Category: Tungsten Information; Published on Wednesday, 10 June 2020 18:59; Written by Yahong; Hits: 1829

The researchers proposed a new two step ion exchange method for the preparation of high purity ammonium paratungstate. This method overcomes the shortcomings of low tungsten adsorption capacity, low concentration of crude sodium tungstate feed liquid, and large dilution of feed liquid in the ion exchange process using strong basic anion exchange resin, while maintaining certain advantages.