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Preparation technology status and development prospect of high purity ammonium paratungstate product |
DAN Ningning, LI Jiangtao |
School of Metallurgical and Environment, Central South University, Changsha 410083, China |
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Abstract The development of high purity ammonium paratungstate (APT) raw material preparation process to meet the growing demand for high purity tungsten products has important significance. In this paper, the demand status of high purity APT and the raw material of high-end tungsten products are introduced, and the technology status of preparing high purity APT by ammonia dissolution, ion exchange and solvent extraction are analyzed. The development and application prospect of high-purity APT preparation technology are expounded.
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Received: 26 May 2020
Published: 18 January 2021
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