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  • Ammonium Metatungstate Production Method - Neutralization

    ammonium paratungstate image

    Introduction

    Ammonium metatungstate (AMT) can be produced by neutralization, which is used ammonium paratungstate (APT) as raw material.

    This production method is using APT and nitric acid, adding de-ionized water and citric acid, after stirring, it contains 12%~30WO3. Heat the fluid and make its density 1.18~1.20g/cm3. Stirring, sedimentation, filtration, cooling, crystallization are the following steps to produce AMT. Drying is the last step. After drying, the AMT is produced.

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