一种块状单晶磷酸铁的制备方法
By controlling the reaction conditions and separation steps based on the ammonium process, bulk single-crystal iron phosphate was prepared, solving the problems of equipment compatibility and excessive impurities, and realizing the mass production of high-quality single-crystal iron phosphate and compliance with market specifications.
CN122013292BActive Publication Date: 2026-07-17XINYANGFENG AGRI TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XINYANGFENG AGRI TECH CO LTD
- Filing Date
- 2026-04-15
- Publication Date
- 2026-07-17
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Figure CN122013292B_ABST
Abstract
本发明涉及电池材料技术领域，具体涉及一种块状单晶磷酸铁的制备方法。所述制备方法，包括如下步骤：（1）配制磷酸溶液、双氧水溶液、氨水、磷盐溶液和亚铁盐溶液；向磷盐溶液中加入氨水，得到磷盐溶液A；（2）将双氧水溶液和磷盐溶液A混匀，得到磷盐溶液B；（3）将亚铁盐溶液和磷盐溶液B一起投料，得到浆料A；（4）过滤获得滤饼；（5）浆化，得到浆料B；（6）将浆料B分成两份，一份加入反应釜中，加入磷酸溶液；（7）升温后投入另一份浆料B，保温得到浆料；（8）获得二水磷酸铁；（9）获得无水磷酸铁。本发明的制备方法与现有铵法工艺设备兼容，可实现批量生产，本发明制备的磷酸铁为块状单晶，各规格皆符合市场产品要求。
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