The Baotou Iron and Steel Company(BISCO) is located at Baotou,830 kilometerswest of Beijing,in the Inner MongoliaAutonomous Region.The ore deposit atBaiyun’ebo,on which the company is based,was discovered by geologis...The Baotou Iron and Steel Company(BISCO) is located at Baotou,830 kilometerswest of Beijing,in the Inner MongoliaAutonomous Region.The ore deposit atBaiyun’ebo,on which the company is based,was discovered by geologist DING Daohengin 1927 and was later found to be rich inrare earth elements.An extensive prospecting campaignwas launched after the founding of the展开更多
包钢选矿厂尾矿中含有大量稀土,可以通过低温氯化法回收利用.然而,氯化法制得的氯化稀土中含有较多的氯化钙,影响产品的质量.为了尽可能地除去尾矿中的萤石,进行AlCl3溶解萤石的实验.AlCl3具有较强的络合能力,它的加入能有效地促进尾矿...包钢选矿厂尾矿中含有大量稀土,可以通过低温氯化法回收利用.然而,氯化法制得的氯化稀土中含有较多的氯化钙,影响产品的质量.为了尽可能地除去尾矿中的萤石,进行AlCl3溶解萤石的实验.AlCl3具有较强的络合能力,它的加入能有效地促进尾矿中萤石(CaF2)的溶解.以不同浓度AlCl3浸取尾矿,考察经浸取和酸处理后尾矿中萤石的溶解情况.结果表明:用100 mL 2.6mol/L AlCl3浸取24 g尾矿时,尾矿中钙的含量(以氧化物计)可由原来的20.98%降低到14.65%.展开更多
文摘The Baotou Iron and Steel Company(BISCO) is located at Baotou,830 kilometerswest of Beijing,in the Inner MongoliaAutonomous Region.The ore deposit atBaiyun’ebo,on which the company is based,was discovered by geologist DING Daohengin 1927 and was later found to be rich inrare earth elements.An extensive prospecting campaignwas launched after the founding of the
文摘包钢选矿厂尾矿中含有大量稀土,可以通过低温氯化法回收利用.然而,氯化法制得的氯化稀土中含有较多的氯化钙,影响产品的质量.为了尽可能地除去尾矿中的萤石,进行AlCl3溶解萤石的实验.AlCl3具有较强的络合能力,它的加入能有效地促进尾矿中萤石(CaF2)的溶解.以不同浓度AlCl3浸取尾矿,考察经浸取和酸处理后尾矿中萤石的溶解情况.结果表明:用100 mL 2.6mol/L AlCl3浸取24 g尾矿时,尾矿中钙的含量(以氧化物计)可由原来的20.98%降低到14.65%.
