Industrial Grade Tungstic Acid

Industrial grade tungstic acid is an intermediate compound of ammonium paratungstate (APT) in powder metallurgy.industrial grade tungstic acid picture
Preparation of Industrial Grade Tungstic Acid

Step 1: Add tungstic acid raw material with a purity of 99.95% into the inorganic acid solution, the mass ratio of the inorganic acid solution to the tungstic acid raw material is 1:1 to 2:1, ultrasonic irradiation oscillation for 3h-6h. The temperature is controlled at the range of 20°C~40°C, suction filtration to obtain filter cake solid;

Step 2: Put the filter cake solid obtained in the first step into the inorganic acid solution. The mass ratio of the inorganic acid solution to the filter cake solid is 1:1 to 3:1, ultrasonic irradiation oscillation for 5h-10h, the temperature is controlled at the range of 30°C~50°C, filtration to get solid;

Step 3: Place the solid obtained in the second step into deionized water and wash for 2 or 3 times, suction filtration under reduced pressure. The filter cake is pressed to dry and vacuum dried at 60°C~80°C for more than 10 hours to obtain tungstic acid with a purity of 99.999%.

More details, please visit:

Comments are closed.

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China Copyright © 1997 - 2024 CTIA All Rights Reserved
Phone:+86-592-5129696,+86-592-5129595;    Email: