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Ｓｔｕｄｙ　ｏｎ　Ｒｅｃｏｖｅｒｙ　ｏｆ　Ｎｉｃｋｅｌ　ｆｒｏｍ Ｈｉｇｈ　Ｍａｇｎｅｓｉｕｍ Ｎｉｃｋｅｌ　Ｓｉｌｉｃａｔｅ　Ｏｒｅ　ｂｙ　Ｃｈｌｏｒｉｄｉｚｉｎｇ　Ｓｅｇｒｅｇａｔｉｏｎ

ＹＡＮＧＱｉｎｇ-ｒｏｎｇ１，２ｂ，ＺＨＡＮＧ Ｇｕｉ-ｆａｎｇ２ａ，ＹＡＮ Ｐｅｎｇ２ａ   

  1. （１Ｆａｃｕｌｔｙ ｏｆ Ｍｅｃｈａｎｉｃａｌ Ｅｎｇｉｎｅｅｒｉｎｇ，Ｋｕｎｍｉｎｇ Ｍｅｔａｌｌｕｒｇｙ Ｃｏｌｌｅｇｅ，Ｋｕｎｍｉｎｇ ６５００３３，Ｃｈｉｎａ；２ａ Ｆａｃｕｌｔｙ ｏｆ Ｍｅｔａｌｌｕｒｇｉｃａｌ ａｎｄ Ｅｎｅｒｇｙ Ｅｎｇｉｎｅｅｒｉｎｇ，２ｂＦａｃｕｌｔｙ ｏｆ Ｌａｎｄ ａｎｄ Ｒｅｓｏｕｒｃｅ Ｅｎｇｉｎｅｅｒｉｎｇ，Ｋｕｎｍｉｎｇ Ｕｎｉｖｅｒｓｉｔｙ ｏｆ Ｓｃｉｅｎｃｅ ａｎｄ Ｔｅｃｈｎｏｌｏｇｙ，Ｋｕｎｍｉｎｇ ６５００９３，Ｃｈｉｎａ）
  • Received:2015-03-27 Online:2015-07-01 Published:2015-07-01

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Abstract:

Ｓｉｌｉｃａｔｅ　ｎｉｃｋｅｌ　ｏｒｅ　ｉｎ　Ｙｕｎｎａｎ　Ｐｒｏｖｉｎｃｅ　ｗｉｔｈ　ｂｉｇ　ｒｅｓｏｕｒｃｅ　ｒｅｓｅｒｖｅｓ，ｃｏｍｐｌｅｘ　ｃｏｍｐｏｎｅｎｔｓ　ａｎｄ　ｌｏｗ　ｎｉｃｋｅｌ　ｇｒａｄｅ，ｂｅｌｏｎｇｓ　ｔｏ　ａ　ｓｕｒｆａｃｅ　ｗｅａｔｈｅｒｉｎｇ　ｃｌｕｓｔ　ｄｅｐｏｓｉｔ，ｗｈｉｃｈ　ｃｏｕｌｄｎ＇ｔ　ｇｅｔ　ｕｓｅｄ　ｂｙ　ｔｈｅ　ｃｏｎｖｅｎｔｉｏｎａｌ　ｍｅｔｈｏｄ．Ａｃｃｏｒｄｉｎｇ　ｔｏ　ｔｈｅ　ｃｈａｒａｃｔｅｒ　ｏｆ　ｈｉｇｈ　ｍａｇｎｅｓｉｕｍ，ｎｉｃｋｅｌ，ｔｈｅ　ｃｏｎｄｉｔｉｏｎ　ｅｘｐｅｒｉｍｅｎｔｓ ｏｆｃｈｌｏｒｉｄｉｚｉｎｇ　ｓｅｇｒｅｇａｔｉｏｎ－ｍａｇｎｅｔｉｃ　ｓｅｐａｒａｔｉｏｎ　ｔｅｃｈｎｏｌｏｇｙ　ｈａｄ　ｂｅｅｎ　ｃｏｎｄｕｃｔｅｄ　ｉｎ　ｔｈｉｓ　ｐａｐｅｒ，ｉｎｃｌｕｄｉｎｇ　ｅｘｐｅｒｉｍｅｎｔｓ　ｏｆ　ｔｈｅ　ｄｏｓａｇｅ　ｏｆ　ｃｈｌｏｒｉｎａｔｉｏｎ　ａｇｅｎｔ，ｔｈｅ　ｄｏｓａｇｅ　ｏｆ　ｒｅｄｕｃｉｎｇ　ｒｅａｇｅｎｔ，ｔｈｅ　ｄｏｓａｇｅ　ｏｆ　ａｄｄｉｔｉｖｅｓ，ｔｈｅ　ｒｏａｓｔｉｎｇ　ｔｅｍｐｅｒａｔｕｒｅ，ｔｈｅ　ｒｏａｓｔｉｎｇ　ｔｉｍｅ　ａｎｄ　ｉｎｔｅｎｓｉｔｙ　ｏｆ　ｍａｇｎｅｔｉｃ　ｆｉｅｌｄ．Ｔｈｅ　ｏｐｔｉｍｕｍ　ｃｏｎｄｉｔｉｏｎｓ　ｗｅｒｅ　ｃｈｏｓｅｎ　ｔｏ　ｃｏｎｄｕｃｔ　ｔｈｅ　ｒｅｐｅａｔｅｄ　ｔｅｓｔ．Ｔｈｅ　ｒｅｓｕｌｔｓ　ｏｆ　ｅｘｐｅｒｉｍｅｎｔ　ｓｈｏｗｅｄ　ｔｈａｔ　ｔｈｅ　ｏｐｔｉｍｕｍ　ｃｏｎｄｉｔｉｏｎｓ　ｗｅｒｅ　ｔｈｅ　ｃｈｌｏｒｉｎａｔｉｏｎ　ｒｅｇｅｎｔ　ｗｉｔｈ　ａ ｄｏｓａｇｅ　ｏｆ ３０％，ｔｈｅ　ｒｅｄｕｃｔａｎｔ　ｗｉｔｈ　ａ　ｄｏｓａｇｅ　ｏｆ１５％，ＣａＯ　ａｓ　ｔｈｅ　ａｄｄｉｔｉｖｅ　ｏｆ　ａ　ｄｏｓａｇｅ　ｏｆ １０％，ｒｏａｓｔｉｎｇ　ａｔ　１１００℃ 　ｆｏｒ　９０　ｍｉｎ，ａｎｄ　ｔｈｅｍａｇｎｅｔｉｃ　ｆｉｅｌｄ　ｉｎｔｅｎｓｉｔｙ　ｏｆ１.２Ｔ．Ｕｎｄｅｒ ｔｈｅ ｏｐｔｉｍａｌ ｃｏｎｄｉｔｉｏｎｓ，ｔｈｅ ｎｉｃｋｅｌ ｇ-ｒａｄｅ ｏｆ ８.０７％ ａｎｄ ｔｈｅ ｎｉｃｋｅｌ ｒｅｃｏｖｅｒｙ ｏｆ７５.２７％ ｗｅｒｅ ａｃｈｉｅｖｅｄ．Ｔｈｉｓ ｈａｓ ｐｒｏｖｉｄｅｄａ  ｒｅａｓｏｎａｂｌｅ ｍｅｔｈｏｄ ｏｆ ｕｔｉｌｉｚｉｎｇ ｓｉｌｉｃａｔｅ ｎｉｃｋｅｌ ｏｒｅ．

Key words: ｈｉｇｈ ｍａｇｎｅｓｉｕｍ, ｎｉｃｋｅｌ ｓｉｌｉｃａｔｅ, ｃｈｌｏｒｉｄｉｚｉｎｇ ｓｅｇｒｅｇａｔｉｏｎ, ｍａｇｎｅｔｉｃ ｓｅｐａｒａｔｉｏｎ

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