Process for lixiviacao of umminerio of niobium and or Tantalo which contains calcium and in particular a concentrate of pyrochlore

• 1. 一种钽铌矿捕收剂组合物以及钽铌粗精矿的浮选方法 [P] . 中国专利： CN112871461A . 2021-06-01
• 2. 一种含钽铌的锂辉石精矿浮选分离钽铌和锂辉石的方法 [P] . 中国专利： CN108993765B . 2020.07.28
• 3. The process of extraction of colombio - Tantalo from ores of pyrochlore [P] . BR7904995A . 1980-04-22

  机译： 从烧绿石矿石中提取哥伦比亚-Tantalo的工艺。

• 4. DIRECT NIOBIUM AND TANTALUM EXTRACTION CONTAINED IN THE LEACHING PULP OF A PYROCHLORE CONCENTRATE [P] . CA1211289A . 1986-09-16

  机译： 焦绿精矿浸出浆中直接萃取的铌和钽

• 5. Process for the apply of hidrometalurgico Tantalo and niobium [P] . BR9300739A . 1993-09-28

  机译： 氢金属钽和铌的应用工艺

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• 5. Production of a Phosphate Concentrate from the Tailings of a Niobium Ore Concentrator [O] . Anthony Clapperton, Claude Bazin, Dominic Downey, 2020

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