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    • 4. 发明申请
    • PROCESSES FOR THE REMOVAL AND RECOVERY OF MINOR ELEMENTS IN WET-PROCESS PHOSPHORIC ACID
    • 在湿法磷酸中去除和回收少量元素的方法
    • US20150166343A1
    • 2015-06-18
    • US14416264
    • 2013-07-21
    • K-TECHNOLOGIES, INC.
    • William W. BerryThomas E. Baroody
    • C01B25/238B01D15/20B01D15/36
    • C01B25/238B01D15/203B01D15/362B01J39/05B01J39/14B01J49/53C01B17/96C01F11/46
    • In alternative embodiments, the invention provides processes and methods for the recovery or the removal of the so-called “Minor Elements” consisting of iron, aluminum and magnesium (expressed as oxides), from wet-process phosphoric acid using a continuous ion exchange approach. In alternative embodiments, use of processes and methods of the invention allows for the reduction of these Minor Elements with minimal phosphate losses and dilution in order to produce a phosphoric acid that is suitable for the production of fertilizer products such as world-class diammonium phosphate (DAP), merchant-grade phosphoric acid, superphosphoric acid, and other phosphoric acid products. Further, use of the invention would allow the use of lower grade phosphate rock or ore, which would greatly expand the potential phosphate rock reserve base for phosphate mining activities, and allow for better overall utilization of resources from a given developed mine site.
    • 在替代实施方案中,本发明提供了使用连续离子交换法从湿法磷酸回收或除去由铁,铝和镁(以氧化物形式)组成的所谓“次要元素”的方法和方法 。 在替代实施方案中,使用本发明的方法和方法允许以最小的磷酸盐损失和稀释来还原这些次要元素,以便产生适合于生产肥料产品的磷酸,例如世界级磷酸氢二铵( DAP),商品级磷酸,超磷酸等磷酸产品。 此外,本发明的使用将允许使用较低等级的磷酸盐岩或矿石,这将大大扩大磷酸盐矿开采活动的潜在磷酸盐储备基础,并允许从给定的开发矿区更好地综合利用资源。
    • 8. 发明授权
    • Processes for the removal and recovery of minor elements in wet-process phosphoric acid
    • 在湿法磷酸中去除和回收少量元素的方法
    • US09573810B2
    • 2017-02-21
    • US14416264
    • 2013-07-21
    • K-TECHNOLOGIES, INC.
    • William W. BerryThomas E. Baroody
    • C01B25/00C01B25/238C01B17/96C01F11/46B01J39/04B01J39/14B01J49/00B01D15/20B01D15/36
    • C01B25/238B01D15/203B01D15/362B01J39/05B01J39/14B01J49/53C01B17/96C01F11/46
    • In alternative embodiments, the invention provides processes and methods for the recovery or the removal of the so-called “Minor Elements” consisting of iron, aluminum and magnesium (expressed as oxides), from wet-process phosphoric acid using a continuous ion exchange approach. In alternative embodiments, use of processes and methods of the invention allows for the reduction of these Minor Elements with minimal phosphate losses and dilution in order to produce a phosphoric acid that is suitable for the production of fertilizer products such as world-class diammonium phosphate (DAP), merchant-grade phosphoric acid, superphosphoric acid, and other phosphoric acid products. Further, use of the invention would allow the use of lower grade phosphate rock or ore, which would greatly expand the potential phosphate rock reserve base for phosphate mining activities, and allow for better overall utilization of resources from a given developed mine site.
    • 在替代实施方案中,本发明提供了使用连续离子交换法从湿法磷酸回收或除去由铁,铝和镁(以氧化物形式)组成的所谓“次要元素”的方法和方法 。 在替代实施方案中,使用本发明的方法和方法允许以最小的磷酸盐损失和稀释来还原这些次要元素,以便产生适合于生产肥料产品的磷酸,例如世界级磷酸氢二铵( DAP),商品级磷酸,超磷酸等磷酸产品。 此外,本发明的使用将允许使用较低等级的磷酸盐岩或矿石,这将大大扩大磷酸盐矿开采活动的潜在磷酸盐储备基础,并允许从给定的开发矿区更好地综合利用资源。