JP2014526431A5 - - Google Patents

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JP2014526431A5
JP2014526431A5 JP2014530060A JP2014530060A JP2014526431A5 JP 2014526431 A5 JP2014526431 A5 JP 2014526431A5 JP 2014530060 A JP2014530060 A JP 2014530060A JP 2014530060 A JP2014530060 A JP 2014530060A JP 2014526431 A5 JP2014526431 A5 JP 2014526431A5
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Prior art keywords
aluminum
alcl
hcl
concentration
stage
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JP2014530060A
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Priority claimed from PCT/CA2012/000871 external-priority patent/WO2013037054A1/en
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Claims (22)

  1. アルミニウム含有材料を、約26〜約42重量%の濃度を有するHClにより浸出し、アルミニウムイオン及び固形物を含む浸出液を得て、さらに前記固形物を前記浸出液から分離するステップと、
    前記浸出液をHClと反応させることでAlCl を含む沈殿物を得て、該AlCl を多段階の結晶化プロセスにより処理して、液体及びAlCl ・6H の形態のアルミニウムイオンを含む結晶を得て、前記結晶を前記液体から分離するステップと、
    AlCl ・6H をAlに変換するのに効果的な条件の下に前記結晶を加熱し、これにより副生成物として生じたガス状HClを回収するステップであって、前記AlCl ・6H OからAl への変換は2段階の焼成を含み、該焼成における第1段階では約375℃〜約450℃の温度の熱処理を含み、第2段階では約850℃〜約1250℃の温度の熱処理を含み、前記第1段階は第1の回転キルンで実行され、前記第2段階は第2の回転キルンで実行されるステップ
    前記副生成物として生じたガス状HClを水と反応させて再利用し、約25〜約45重量%の濃度を有する組成物を得て、前記アルミニウム含有材料を浸出するのに前記組成物を使用するステップと
    を有する、アルミナの調製方法
  2. アルミニウム含有材料を、約26〜約42重量%の濃度を有するHClにより浸出し、アルミニウムイオン及び固形物を含む浸出液を得て、さらに前記固形物を前記浸出液から分離するステップと、
    前記浸出液をHClと反応させることでAlCl を含む沈殿物を得て、該AlCl を多重段階の結晶化プロセスにより処理して、液体及びAlCl ・6H Oの形態のアルミニウムイオンを含む結晶を得て、前記結晶を前記液体から分離するステップと、
    AlCl ・6H OをAl に変換するのに効果的な条件の下に前記結晶を加熱し、これにより副生成物として生じたガス状HClを回収するステップであって、前記AlCl ・6H OからAl への変換は2段階の焼成を含み、該焼成における第1段階では約375℃〜約450℃の温度の熱処理を含み、第2段階では約850℃〜約1250℃の温度の熱処理を含むステップと、
    前記副生成物として生じたガス状HClを再利用し、膜蒸留プロセスにより前記副生成物として生じたHClを浄化するステップと
    を有する、アルミナの調製方法。
  3. アルミニウム含有材料を、約26〜約42重量%の濃度を有するHClにより浸出し、アルミニウムイオン及び固形物を含む浸出液を得て、さらに前記固形物を前記浸出液から分離するステップと、
    前記浸出液をHClと反応させることでAlCl を含む沈殿物を得て、該AlCl を多重段階の結晶化プロセスにより処理して、液体及びAlCl ・6H Oの形態のアルミニウムイオンを含む結晶を得て、前記結晶を前記液体から分離するステップと、
    AlCl ・6H OをAl に変換するのに効果的な条件の下に前記結晶を加熱し、これにより副生成物として生じたガス状HClを回収するステップであって、前記AlCl ・6H OからAl への変換は2段階の焼成を含み、該焼成における第1段階では約375℃〜約450℃の温度の熱処理を含み、第2段階では約850℃〜約1250℃の温度の熱処理を含み、前記第1段階は第1の回転キルンで実行され、前記第2段階は第2の回転キルンで実行されるステップと、
    前記副生成物として生じたガス状HClを、前記焼成により得られた前記HClの凝結によって再利用し、前記アルミニウム含有材料を浸出するのに再利用された該HClを再使用するステップと
    を有する、アルミナの調製方法。
  4. 前記アルミニウム含有材料が粘土から選択される、請求項1〜3のいずれか1項に記載の方法。
  5. 前記アルミニウム含有材料が陶土から選択される、請求項1〜3のいずれか1項に記載の方法。
  6. 前記第1の回転キルンは、天然ガスの動力源の回転キルンである、請求項1〜5のいずれか1項に記載の方法。
  7. 前記第2の回転キルンは、天然ガスの動力源の回転キルンである、請求項1〜5のいずれか1項に記載の方法。
  8. 前記AlCl 結晶化中、前記液体、約25〜約35重量%のHCl濃度に維持できる請求項1〜7のいずれか1項に記載の方法。
  9. 前記AlCl の結晶化中、前記AlCl の濃度が、約30重量%である、請求項1〜8のいずれか1項に記載の方法。
  10. 前記第1段階が約375〜約425℃の温度の熱処理を含む、請求項1〜9のいずれか1項に記載の方法。
  11. 前記第1段階が約385〜約400℃の温度の熱処理を含む、請求項1〜9のいずれか1項に記載の方法。
  12. 前記第2段階が約1000〜約1250℃の温度の熱処理を含む、請求項1〜11のいずれか1項に記載の方法。
  13. 前記アルミニウム含有材料を、約28〜約40重量%の濃度を有するHClにより浸出する、請求項1〜12のいずれか1項に記載の方法。
  14. 前記アルミニウム含有材料を、約30〜約38重量%の濃度を有するHClにより浸出する、請求項1〜12のいずれか1項に記載の方法。
  15. 前記アルミニウム含有材料を、25〜36重量%の濃度を有するHClにより浸出する、請求項1〜12のいずれか1項に記載の方法。
  16. 水と反応させることで、前記副生成物として生じガス状HClを再利用し、約28〜約40重量%の濃度を有する前記組成物を得て、該組成物を使用して前記アルミニウム含有材料を浸出する、請求項1に記載の方法
  17. 水と反応させることで、前記副生成物として生じガス状HClを再利用し、約30〜約38重量%の濃度を有する前記組成物を得組成物を使用して前記アルミニウム含有材料を浸出する、請求項1に記載の方法
  18. 水と反応させることで、前記副生成物として生じガス状HClを再利用し、25〜36重量%の濃度を有する前記組成物を得て、該組成物を使用して前記アルミニウム含有材料を浸出する、請求項1に記載の方法
  19. 請求項1〜12のいずれか1項に記載の方法によりアルミナを得るステップと、前記アルミナをアルミニウムに変換するステップとを含む、アルミニウムの調製方法。
  20. 請求項1〜18のいずれか1項に記載の方法により調製されたアルミナ。
  21. 請求項19に記載の方法により調製されたアルミニウム。
  22. 本明細書のいずれか1つ又は複数の実施例を参照して実質的に記載され、且つ、比較例を除く、請求項1〜3及び19のいずれか1項に記載の方法、並びに請求項20に記載のアルミナ及び請求項21に記載のアルミニウム。
JP2014530060A 2011-09-16 2012-09-17 アルミナ及び様々な他の生成物の調製プロセス Pending JP2014526431A (ja)

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US201161535435P 2011-09-16 2011-09-16
US61/535,435 2011-09-16
US201261584937P 2012-01-10 2012-01-10
US61/584,937 2012-01-10
US201261668646P 2012-07-06 2012-07-06
US61/668,646 2012-07-06
PCT/CA2012/000871 WO2013037054A1 (en) 2011-09-16 2012-09-17 Processes for preparing alumina and various other products

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JP2014526431A5 true JP2014526431A5 (ja) 2015-11-05

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US (2) US9382600B2 (ja)
EP (1) EP2755918A4 (ja)
JP (1) JP2014526431A (ja)
CN (1) CN104039706A (ja)
AU (1) AU2012308068B2 (ja)
BR (1) BR112014006275A2 (ja)
CA (1) CA2848751C (ja)
IN (1) IN2014DN03007A (ja)
RU (1) RU2014114938A (ja)
WO (1) WO2013037054A1 (ja)

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