Monoclinic ammonium paratungstate with different particle size can be obtained by different heating stages. The changes of particle size and surface area…
Single crystal ammonium paratungstate is a key material for producing high quality tungsten wire, which is always applying in cars. That is…
Ultra-fine ammonium paratungstate has received widespread attention around the world since the 1990s as it can be used to prepare ultrafine tungsten…
Crystalline ammonium paratungstate may be prepared by evaporative crystallization, which has been favored in industrial production as this method has the characteristics…
Coarse grain size ammonium paratungstate may be prepared by using ammonium tungstate solution (produced by ion exchange method) as raw material, controlling…
Medium grain size ammonium paratungstate means the ammonium paratungstate that has apparent density under the range of medium particle size, such as…
Fine grain size ammonium paratungstate may be prepared by microwave-ultrasonic cooperative evaporation crystallization at higher temperature and without addition of surfactant. A…
Ultrafine ammonium paratungstate is the key raw material for preparing fine grain size tungsten products with superior performance such as ultrafine tungsten…
High purity ammonium paratungstate is prepared to meet higher requirements of high-end tungsten carbide materials (APT). With the development of the process…
Ammonium paratungstate powder (APT) may be produced by secondary reduction process. In other words, APT is reduced to blue tungsten oxide (BTO)…