Extracting Ammonium Maratungstate by Ion Exchange

Ion exchange with ammonium paratungstate as raw material, ion exchange Prepared metatungstate: heating paratungstate 1 ~ 8 h at 130 ~ 140 ℃, the resultant slurried, boil 2 ~ 6 h at 80 ℃ ~ 100 ℃ generate metatungstate solution. Then concentrated

crystallization, filtration separation, drying products. Its electrodialysis or tungsten ammonium paratungstate as raw materials by electrodialysis provisioning metatungstate: The paratungstate added to the anode chamber, when the current through, ammonium ions through the anion exchange membrane into the cathode chamber, the anode chamber metatungstate concentration increases. Finally released metatungstate solution from the cathode chamber, according to the  approach to obtain  ammonium metatungstate.

Tungsten Powder Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-powder.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

• < Prev
• Next >